Sony APR-5000 Technical Service Download

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Summary of Contents for APR-5000

Page 1: ...SONY APR 5000 TECHNICAL SERVICE TRAINING MANUAL o Prepared by SONY PROFESSIONAL AUDIO TRAINING GROUP o ...

Page 2: ...ower Up 3 1 1 Headstack ID DIP Switch 3 1 2 Error Codes 3 1 3 Control and Indicator Status Transport and Audio Operations 3 2 1 Transport Operations 3 2 1 1 Basic Operation 3 2 1 2 Use of the MVC Wheel 3 2 1 3 Vari Speed Mode 3 2 1 4 Repeat Mode 3 2 2 Audio Operations 3 2 2 1 Basic Operation 3 2 2 2 Spot Erase Audio Alignment 3 3 1 PRESET Storage Time Code Operations 3 4 1 Time Code Generation 3 4...

Page 3: ...face System 4 0 1 Transport Key Panel Command Flow 4 0 2 Remote Control Unit Command Flow 4 1 4 1 4 1 4 2 4 2 4 2 4 6 4 2 3 Fundamentals of Synchronizer Operation 4 2 3 1 APR 5003 5003V Built in Synchronizer Operation 4 2 4 APR 5003V Chase Synchronized to an External LTC Source 4 2 4 1 External LTC Time Code Signal Path 4 2 4 2 Playback Time Code Signal Path 4 2 4 3 CPU Synchronization w LTC 4 2 5...

Page 4: ...ts Vide Vert 4 37 4 37 4 38 4 38 4 39 4 39 4 39 4 40 4 40 4 40 4 41 4 5 13 5 System Clock 4 5 13 6 Serial Communications Controller 4 5 13 7 Communications Input Output CIO 4 5 13 8 Time Code Readers 4 5 13 9 Time Code Generators 4 5 13 10 TC Clock Recovery Principles of Operation 4 42 4 42 4 5 14 Local Network Transceiver LNT Board Overview 4 44 4 5 14 1 Central Processing Unit CPU Block 4 5 14 2...

Page 5: ...6 5 16 5 17 5 18 5 19 5 19 5 20 5 21 5 21 V SECTION 6 MAINTENANCE AND CALIBRATION PROCEDURES 6 0 6 1 Overview Necessary Tools 6 1 1 Test Equipment 6 1 2 Service Tools 6 1 6 1 6 1 6 2 6 1 3 Cleaning Items 6 1 4 Test Tapes Routine Maintenance Adjustment After Major Parts Replacement 6 3 1 Adjustment After Head Replacement 6 3 2 Adjustment After Reel Motor Replacement 6 3 3 Adjustment After Capstan M...

Page 6: ... Procedure 6 5 8 2 Flutter Start up Adjustment Procedure 6 5 9 End Of Tape EOT Sensor Check Adjustment 6 5 9 1 EOT Sensor Check Procedure 6 5 9 2 EOT Sensor Adjustment Procedure 6 5 10 Variable Speed Check Adjustment Procedure 6 5 10 1 Variable Speed Check Procedure 6 5 10 2 Variable Speed Adjustment Procedure Audio System Check Adjustment Procedures 6 6 1 Head Azimuth and Wrap Check Adjustment Pr...

Page 7: ...ons 7 1 7 3 7 4 ACM Board Layout ACM Board Schematic Diagram ADM AHB Board Layout and AHB Board Schematic Diagram ADM Board Schematic Diagram ALN Board Layout ALN Board Schematic Diagram CNL Board Layout Early CNL Board Layout Late model CNL Board Schematic Diagram 1 of 2 CNL Board Schematic Diagram 2 of 2 CNX Board Layout CNX Board Schematic Diagram CNX 11 Board Layout CNX II Board Schematic Diag...

Page 8: ...57 7 58 Layout VVT Board Schematic Diagram CSL Board Layout CSL Board Schematic Diagram PDB Board Layout PDB Board Schematic Diagram RGA and RGB Board Layout Schematic Diagram RG 1 Board Layout Schematic Diagram RGC and RGD Board Layout Schematic Diagram RG 2 Board Layout Schematic Diagram Power Supply Wiring Early model Power Supply Wiring Late model O SECTION 8 POWER SUPPLY INFORMATION 8 0 Overv...

Page 9: ...N Board D 1 4 CNL Board D 1 5 CNX Board D 1 6 CNX 11 Board D 1 7 CPU Board D 1 8 CTM Board D 1 9 DSP Board D 1 10 FEX Board D 1 11 HES Board D 1 12 KBD Board D 1 13 MSB Board D 1 14 LNT Board D 1 15 MST Board Early model D 1 16 MST Board Late model D 1 17 RMD Board D 1 18 RTS Board D 1 19 SBR Board D 1 20 TCC Board D 1 21 TCM Board D 1 22 TIB Board D 1 23 TTS Board D 1 24 VVT Board D 1 25 CSL Boar...

Page 10: ...APPENDIX F TAPE PATH ADJUSTMENT TUTORIAL 9 ...

Page 11: ...dio adjustments have been replaced with a microprocessor controlled alignment feature Up to three separate alignments can be stored per speed allowing for maximum flexibility when changing between alternative tape types reference fluxivities overbias settings or record reproduce equalization standards This allows the calibration of the machine to be changed at the push of a button Also each headst...

Page 12: ...olve on Play and synchronization to external VITC and pilot tones 1 2 Options The following is a description of the optional accessories available for the APR 5000 Series SU 14 Stand This variable profile stand converts the APR 5000 from a desk top to a stand alone model RM 5010 Remote Control Unit This unit allows for control of the transport and recording functions of the APR 5000 from a remote ...

Page 13: ...ical progress may warrant 91 pounds 46 26 Kg Weight Weight With SU 14 Stand Option 138 pounds 70 15 Kg Normal Operating Temperature Range 41 F to 95 F 5 C to 35 C 4 F to 158 F 20 C to 70 C Storage Temperature Specification Guarantee Temperature 77 F 25 C Humidity 10 to 90 Non condensing Operating Position With SU 14 Stand Option Horizontal or 15 tilt Table 1 1 Mechanical Specifications 1 3 ...

Page 14: ...nd 30ips 3 75 7 5 and 15 ips Variable speed 50 of fixed speed TAPE Low speed models SPEED Better than 0 02 SPEED STABILITY 110 sec for 2400 feet of tape 170 sec for 4800 feet of tape FAST WIND TIME 370 sec for 2400 feet of tape SPOOL WIND TIME From full stop to 1 9 meters per second in either direction MVC VELOCITY DIN 45507 flutter START UP TIME FLUTTER SPECIFICATION w 10 5 inch reels 0 3 0 15 0 ...

Page 15: ...1 II i 2 A i B 0 0 i A B A B C D i A 4 B 1 0 0 1 0 1 1 0 0 1 0 1 1 0 1 1 0 0 1 Mono 2 TK 3 TK 0 0 1 0 1 1 In the j format A is assigned to NAB heads B is assigned to Amorphous heads C is assigned to DIN heads In the format A is assigned to NAB heads Figure 1 3 Headstack ID DIP Switch Setting o 1 5 ...

Page 16: ...than 1 60 30 ips AES 15 ips NAB 7 5 ips NAB 3 third harmonic fluxivity level 1040nW b 1020nW b 1000nW b 30 ips AES 15 ips NAB 7 5 ips NAB DISTORTION NOISE SPECIFICATION DISCLAIMER Distortion and record reproduce noise are primarily functions of tape formulation and may vary from one formulation to another from one reel of tape to another even Bias settings play a very significant role in the case ...

Page 17: ...dB 30ips AES 15ips NAB 7 5ips NAB DEPTH OF ERASE 1KHZ TONE ERASE BIAS CROSSTALK TO AUDIO Better than 76dB at 30 ips Less than 150mVpp at 7 5 ips GAP COMPEN SATIONS Speed RGC SGC RCF RCB 30 ips 15 ips 7 5 ips Cl Cl C0 Cl C9 CA CC C5 CB CE C4 C3 HEADSTACK DIP SWITCH SETTINGS DIP switch 1 2 3 4 5 6 8 7 Code setting 0 0 1 1 0 1 0 1 NOTES 1 Unless otherwise noted all audio specifications are referenced...

Page 18: ...AB 7 5ips NAB 59dB 56dB 56dB DEPTH OF ERASE 1KHZ TONE ERASE BIAS CROSSTALK TO AUDIO Better than 76dB at 30 ips Less than 150mVpp at 7 5 ips GAP COMPEN SATIONS Speed SGC RCF RCB RGC C0 Cl 30 ips 15 ips 7 5 ips Cl Cl C5 C9 CA CC C3 C3 CE CB HEADSTACK DIP SWITCH SETTINGS 7 8 5 6 2 3 4 DIP switch 1 0 0 0 0 1 1 1 Code setting 1 1 Unless otherwise noted all audio specifications are referenced to 250nW m...

Page 19: ...9dB 56dB 56dB 64dB 61dB 61dB DEPTH OF ERASE 1KHZ TONE ERASE BIAS CROSSTALK TO AUDIO Better than 74dB at 30 ips Less than 150mVpp at 7 5 ips GAP COMPEN SATIONS o Speed RGC SGC RCF RCB 30 ips 15 ips 7 5 ips C0 Cl Cl Cl C3 CA C2 CA C4 C6 C4 C3 HEADSTACK DIP SWITCH SETTINGS DIP switch 1 2 3 5 4 6 7 8 0 Code setting 1 1 1 0 0 1 1 NOTES 1 Unless otherwise noted all audio specifications are referenced to...

Page 20: ...3 7 5ips specifications are referenced to 79nWb m 10dB NOTES continued 4 Ensure that all speeds are set to IEC standard on the ALN Panel Table 1 6 1 4 inch 2 Track DIN Specifications continued 1 10 ...

Page 21: ... 5ips NAB 62dB 57dB 56dB DEPTH OF ERASE 1KHZ TONE ERASE BIAS CROSSTALK TO AUDIO Better than 76dB at 30 ips Less than 150mVpp at 7 5 ips GAP COMPEN SATIONS Speed RGC SGC RCF RCB 30 ips 15 ips 7 5 ips C0 C0 C0 Cl C9 C0 CA C5 C3 C6 C2 C3 HEADSTACK DIP SWITCH SETTINGS DIP switch 1 2 3 5 4 6 7 8 Code setting 1 1 0 0 0 1 0 1 1 Unless otherwise noted all audio specifications are referenced to 250nW m usi...

Page 22: ...AB 7 5ips NAB 62dB 59dB 59dB DEPTH OF ERASE 1KHZ TONE ERASE BIAS CROSSTALK TO AUDIO Better than 72dB at 30 ips Less than 100mVpp at 7 5 ips GAP COMPEN SATIONS Speed RGC SGC RCF RCB C0 C0 30 ips 15 ips 7 5 ips Cl Cl C6 Cl C9 CA C6 C3 CE CB HEADSTACK DIP SWITCH SETTINGS 5 7 8 2 4 6 DIP switch 1 3 0 0 0 1 Code setting 1 1 1 1 1 Unless otherwise noted all audio specifications are referenced to 250nW m...

Page 23: ...EL 4 0vpp differential MIN 1 LEVEL 6 0vpp diff erential RS 422 TYPE OUTPUT see note 4 Less than 85db at 15ips TIME CODE CROSSTALK GAP COMPEN SATIONS track 3 only Speed RGC SGC RCF RCB 30 ips 15 ips 7 5 ips C0 C0 C0 C3 C0 C0 C0 C3 C0 TRACK 3 PRESETS Sync High Frequency Sync Low Frequency Rec High Frequency Bias Level Speed 30 ips 15 ips 7 5 ips 00 FF FF 30 00 FF 20 FF 00 FF FF 10 HEADSTACK DIP SWIT...

Page 24: ... CODE READING CHARACTERISTICS see note 1 External Internal time code MINIMUM GUARANTEED READING RANGE IN PLAY MODE 5035 of nominal speed INTERPOLATED READING RANGE IN FWD OR REV MODES Up to transport limit speed READABLE RANGE LOWER LIMIT 0 05 times nominal speed READABLE RANGE UPPER LIMIT 70 0 times nominal speed OUTPUT SIGNAL SELECTION CHASE MODE STOP MODE Buffered input time code signal Longitu...

Page 25: ...nterpolation range relies upon timer roller tachometer information 3 Enabled in TC DISPLAY mode with an argument of 1 stored in Storage Location 36 Table 1 10 Time Code Specifications continued VIDEO INPUT OUTPUT CONNECTORS Two BNC type connectors with switchable 75 ohm termination INPUT LEVEL COMPOSITE SYNC OR VIDEO SETTING see note 1 Input impedance 10k ohm Video Standard RS 170A level nominal S...

Page 26: ...MOS or TTL logic families directly Sinewave input 3 0vpp minimum 20vpp maximum Squarewave input 1 5vpp minimum 20vpp maximum NOTES 1 Jumper JU 1 installed on the VVT board 2 Jumper JU 2 installed on the VVT board Table 1 11 Video Port Specifications continued 1 16 S ...

Page 27: ... Inventory Check List Ensure that the following parts are in the box 1 APR 5000 1 AC Power Cord 1 European Power Cord 1 APR 5000 Manual 1 Extender Board 1 10 5 inch Reel 1 10 5 inch Reel of Tape 2 NAB Reel Hubs 2 Reel Platter Shims 3 Fuses 2A 200V 4A 110V 5A 100V 1 Headstack Cover 1 Package User Labels 50 ct 2 2 Operational Environment For best results it is recommended that the APR 5000 be instal...

Page 28: ... 5 RIGHT CUSHION PLASTIC BAG HANDLE LEFT CUSHION CARTON BOTTOM CUSHION Figure 2 1 APR 5000 Packaging 2 2 ...

Page 29: ...n The following is a procedure for setting the power supply selector switches STEP 1 Ensure that the AC power cord is disconnected from the machine STEP 2 Remove the two retaining screws on the rear door and open the door STEP 3 Locate the two selector switches behind the take up motor on the back of the power supply STEP 4 Reset the switches to the appropriate voltage as derived from Figure 2 2 i...

Page 30: ...crew the hold down knobs so that the knob shafts do not protrude through the holes on either vertical support member STEP 4 Remove the plastic cap from each vertical support member STEP 5 Obtain assistance in order to lift the APR 5000 in STEP 6 STEP G Lift the APR 5000 using the side handles Guide the machine into the stand assembly so that the slotted screw on each side panel of the tape machine...

Page 31: ...connected to the APR 5000 by fastening the two screws on the Remote Control Unit connector end into the 50 pin receptacle on the rear door of the tape machine Be sure to power off whenever connecting or disconnecting the RM 5010 2 6 APR 5000 Series Cabinet Dimensions Refer to the mechanical drawings shown in Figures 2 4 and 2 6 is required to convert these measurements into inches the formula 2 5 ...

Page 32: ...0 D Figure 2 3 SU 14 Stand Assembly 2 6 ...

Page 33: ...S90mm Figure 2 4 Overall Dimensions for APR 5000 Series all o 2 7 ...

Page 34: ... A TABLE TYPE 85mm 1 502mm 480mm 590mm T 130mm i 3 410mm r i t ii 180 210 mm mm i Overall Dimensions for APR 5000 Series all Figure 2 5 2 8 ...

Page 35: ...STAND TYPE 7 Q 3 Hi o 1090mm 900mm s s O Q 560mm Figure 2 6 Overall Dimensions for APR 5000 Series all o 2 9 ...

Page 36: ...e APR 5003V 2 7 The following diagram Figure 2 7 illustrates the interconnection and set up of the APR 5003V recorder in a typical system Refer to this drawing when installing or changing the system configuration Figure 2 7 APR 5083V Interconnection 2 18 ...

Page 37: ...able on earlier software versions 3 1 Initial Power Up Once the machine has been properly installed as described in Section 2 power may then be applied This section describes the various items related to the initial powering up of the machine 3 1 1 Headstack ID DIP Switch In order for the APR 5080 to operate properly the Headstack ID DIP switch must be set as shown in Figure 3 1 information on APR...

Page 38: ...he headstack Ensure that the DIP switch setting is valid refer to the specifications charts in Section 1 of this manual Replace the headstack onto the machine and proceed HO Headstack Off This error indicates that the headstack connector is probably not mated correctly The Headstack Poll signal sent from the CPU board is not returning to the CPU from the headstack assembly To correct this problem ...

Page 39: ...d Radius Not Established The Frames F decimal point in the TAPE TIME Display is used to monitor the establishment of a valid radius condition When illuminated the decimal point indicates that the machine does not have a valid radius reference Loading a reel of tape usually establishes a valid reference but sometimes it is necessary to manually move the tape seven and one half inches to extinguish ...

Page 40: ...nsport and audio operations of the APR 5000 are discussed in the following paragraphs 3 2 1 Transport Operations The following procedure will familiarize the user with the basic transport operations of the machine through the use of the controls on the Local Control Panel important transport related features such as the Manual Velocity Control MVC mode Vari Speed mode and Repeat mode are also disc...

Page 41: ...icator illuminates the lifters come forward and that the tape accelerates to fast speed in the forward direction STEP 7 Press LIFTER DEFEAT Ensure that the LIFTER DEFEAT key indicator illuminates and that the lifters retract Press the key again and ensure that the key indicator extinguishes and the lifters come forward to their original position STEP 8 Press SHIELD DEFEAT Ensure that the SHIELD DE...

Page 42: ...he wheel is at rest there should be no movement of the reels Rewind velocity of the tape while turning it more to the right increases the Fast Forward velocity of the tape Turning the wheel more to the left increases the The MVC wheel can also be used to change the adjustment of the Vari Speed function as described in the following paragraphs 3 2 1 3 Vari Speed Mode The VARI SPEED key enables the ...

Page 43: ...foilows Storage Location 41 Percentage of play speed deviation is displayed 0 Storage Location 41 The Inches Per Second ips and Semitone value of play speed deviation is displayed displayed in increments of 0 25 semitones 1 The semitone values are then Pressing the VARI SPEED key a third time extinguishes the key indicator 3 2 1 4 Repeat Mode When the REPEAT key is pressed on the APR 5080 the mach...

Page 44: ...olidly STEP 3 Press the SYNC key for each channel on the Meter Bridge Panel ensuring that each key indicator illuminates solidly STEP 4 Press PLAY and REC simultaneously Ensure that the PLAY and REC key indicators are illuminated on the and on the Local Control Panel Ensure that the red ERASE and BIAS LEDs on the Meter Bridge Panel are illuminated STEP 5 Press STOP Ensure that the PLAY and REC key...

Page 45: ...tape Complete Input Playback and Record alignment procedures can be found in Section 6 6 of this manual 3 3 1 PRESET Storage The PRESET keys can be used to store three separate audio alignments per speed per headstack O To arm the Preset store function hold down the CONTROL key and press the STORE key The key indicator LED on the STORE key will illuminate solidly Then pressing any one of the three...

Page 46: ...ted time code track through the use of the TC GEN key on the Local Transport Control Panel The time code can originate from either an externally input source or from the internally derived clock signal The TC GEN key has three mutually exclusive states each of which corresponds to a specific type of external or internal time code generation Refer to the chart in Table 3 1 TC GEN INDICATOR TIME COD...

Page 47: ... code is being input to the machine the format of that external source will also automatically be stored into Memory Locations 31 and 32 providing that the TC GEN key is in one of the two external indicator modes Flashing or On It is also important to note that Memory Location 37 must also be programed manually by the user to reflect the type of the external time code with 0 LTC and 1 VITC 3 4 3 E...

Page 48: ...ed into the LOCATE TIME Display and transferred to the TAPE TIME Display using the TRANSFER UP Arrow key The time code recorded on the assigned time code track will then start its count at the programed time value independent of the time value of the external input It is important to note that the channel assigned as the time code track must be in Record Ready mode in order to program the desired ...

Page 49: ...ed by Memory Locations 31 and 32 is made available in differential analog form for external use at the LTC OUTPUT XLR connector on the rear of the machine Where RS422 type output is desired remove jumpers JU1 and JU3 on the CNX or CNX II board and install them onto jumpers JU2 and JU4 Refer to Figure 3 2 CT 7 33 aunt f nx m Twra 1 Ft msjj C34 H ws I2 S 2 7N w n O j TRIBUTRRT KC 4 11 PORT S TX OR n...

Page 50: ...hat type of time code is being input to the machine with 0 LTC 1 VITC LTC must be input to the LTC IN XLR connector on the rear of the machine and VITC must be input to the VIDEO IN BNC connector The format of the external time code source must also be programed into Memory Locations 31 and 32 either manually or automatically by storing a 1 in Memory Location 31 to enable Auto time code mode Pleas...

Page 51: ...ion 99 does not have a storage feature of its own The offset capture will be determined by the last valid time code values read by the CPU from the playback circuit and the external circuit 3 4 6 4 Resolve on Play hr The Resolve on Play feature allows the PLAY key to be used to initiate data independent synchronization of the machine to an external LTC video signal or tone reference To enable this...

Page 52: ...a NOTE One of the most interesting applications of RESOLVE ON PLAY is the ability to resolve 60 Hz input reference signals to the 24 f s Film Time Code by maintaining a 4 5 Time Code to reference signal resolving ratio Table 3 2 Resolve Capabilities with LTC Input APR 5003V TIME CODE ON TAPE INPUT SIGNAL SMPTE NDF SMPTE DF EBU FILM LTC 30 f s Resolve 0 1 n a n a 60 Hz NTSC B W Video Resolve 0 1 n ...

Page 53: ...me external synchronizers and readers are unable to interpret the interpolated time code that the machine outputs during high speed wind modes Enabling the Burst Time Code feature provides accurate time position information unlimited wind speed range for the external device thereby simplifying the external device s task of determining tape position and stopping position at high wind speeds over an...

Page 54: ...d wind mode the machine will Chase to the one pulse per frame Control Track pulse output of the VTR The machine will re lock to the VTR once valid time code is again provided 3 5 Editing Operations The APR 5000 is capable of performing many sophisticated editing operations designed to meet a wide variety of audio and video tape editing needs The machine may be programed for either manual or trigge...

Page 55: ...ndividual bit of the time code frame recall Memory Location 92 and store the desired bit number 3 5 1 2 Preroll and Postroll Duration Preroll Duration is the amount of time that the machine is in Play before the Edit In Point of a Programed Edit is executed and Postroll Duration is the amount of time that the machine remains in Play after the Edit Out Point of a Programed Edit has been executed as...

Page 56: ...e Programed Edit without the machine actually going into Record When the PREVIEW Storage Location 95 is set to a 1 the machine will locate to the preassigned preroll position Once at this position the PLAY key will flash Pressing the PLAY key then causes the machine to imitate the Programed Edit with all channels monitored from the Sync head Then at the Edit In Point those channels which are in Re...

Page 57: ...iew Review mode will play back the previously executed Edit that the results may be monitored so When the REVIEW Storage Location 97 is set to a 1 the machine locates to the Edit In Point minus the Preroll Duration parking there with the PLAY key flashing Pressing the PLAY key then causes the machine to play back the programed edit with all channels monitored from the Repro head The machine contin...

Page 58: ...nal reference during the Triggered Edit Memory Location 38 should be set as follows 0 LTC data independent LTC data dependent Video signal or tone data independent VITC data dependent 1 2 3 3 5 4 Executing Triggered Edits Once all of the Memory Locations required to perform a Triggered Edit have been programed the desired Edit mode may then be selected for the Triggered Edit 3 5 4 1 Preview Edit a...

Page 59: ...y Location 38 3 6 Memory Locations The Memory Locations are used to store and enable a wide variety of machine parameters and functions Information regarding Default Settings Recalling and Storing and Storage Registers 03 27 is provided as well as a manual reference index 3 6 1 Default Settings The machine is factory shipped with all of the Memory Locations set to zero with the exception of Memory...

Page 60: ...sed 43 TRIGGERED EDIT OPERATION 44 Not Used 45 Not Used 46 CONTROL TRACK FOLLOW DIRECTION SENSE 50 ACCELERATION ALLOWANCE 51 PREROLL DURATION 52 POSTROLL DURATION 53 Not Used 54 Not Used 60 64 70 74 91 EDIT IN POINT BIT RESOLUTION 92 EDIT OUT POINT BIT RESOLUTION 98 SYNCHRONIZATION OFFSET BIT RESOLUTION 99 OFFSET CALCULATION SECTION 3 4 6 2 SECTION 3 5 1 1 SECTION 3 5 1 1 SECTION 3 6 3 SECTION 3 2...

Page 61: ...ystems The Transport Control Interface System interfaces all user accessible keystroke command to the transport and audio system The synchronizer is also located in this system The built in synchronizer handles all of the synchronizer functions of the APR 5000 The heart of the synchronizer is the CPU board which controls the local the local transport according to the soft key selections made by th...

Page 62: ...built into the CPU 1 Local Network Transceiver LNT Board 2 Connector Interface CNX Board 3 Video VITC Translator VVT Board To better understand the APR 5000 Control Interface System the interface signal flow will be discussed as follows 4 2 1 Transport Key Panel command flow 4 2 2 Remote Control Unit command flow 4 2 3 Basic Synchronizer Operation 4 2 1 Transport Key Panel Command Flow Keystrokes ...

Page 63: ...Current j Brake Command Motor ana jP Address and Data Bus H Key Board Display mm a JiDr O iraV T Reel Tach Sensor i Information Line 118 Address and Data Bus fUf Commands Reel Tach Information Remotes a to Machines l 0 _ Information Line Address and Data Bus Address and Data Bus A VVT BOARD MMMi Board Local Network Tranceiver Board if f End of Tape Sensor Audio Interface I Commands Information Lin...

Page 64: ...P471 2 RTS1 IP S RTSl Z z CNJ471R CNJ471L U O c 101 o 5 o 5 2 o 2 5 e S in o 5 IP S 2 T 5 3 a a z z o a u o z z CNP95C CNP421 140 O O RMD CNJ950 CNJ421 40 TRANSPORT INTERFACE BOARD no 3 J 3 a 4 3 R BRAKE L BRAKE 3 3 81 6 n 3 3 z S z n r U ro O CNJ953 CNJ470 8 3 8 CPU CNP470 CNP953 Z z z z Z Z 3 8 J o o o 5 5 IP S V V s a j z o u 3 3 3 4 4 CNJ422 40 CNJ411 CNJ409 CNJ412 CNJ402 CNJ410 CNP422 40 CNP4...

Page 65: ...key switch closure KBD board and routed to the CPU board inform the CPU that there is MVC activity and that it must look at the MVC LOCAL voltage for transport reel motor shuttle control This return line is encoded by IC14 8279 on the This data word will By utilizing a Programmable Keyboard Display Interface 8279 the KBD board can drive the Display DSP board The DSP board is a simple connection bo...

Page 66: ...e 8279 via the return lines 2 The CPU board chooses to read the 8279 on the CNX board by enabling the chip select line and the read line of the 8279 This action is done in the normal cycle of the CPU approximately every 1msec 3 The CPU upon reading this data from the CNX board via the LNT board interprets the incoming information through the use of the software program EPROMs example if the PLAY k...

Page 67: ...ch term means The APR 5003 5003V has the ability to perform two To better understand these Synchronization Offset frames This type of offset is used when the timing of the audio signal on the tape being played back from the APR 5003 5003V requires a shift in time For example in an audio sweetening system where one or more APR 5003 5003V s is are synchronized to a video machine the video picture mu...

Page 68: ...ffset the synchronization with 416 microsecond accuracy With this form of APR 5003 5003V Built in Synchronizer Operation 4 2 3 1 The built in synchronizer is available in the APR 5003V model only The synchronizer feature is facilitated by the Z 8002 microprocessor circuit and software program of the APR 5003V CPU board and support circuitry To fully understand the operation of the synchronizer cir...

Page 69: ...cncN BUFFER o RCC TCT LO ffl a JL AD A 3ft YA 3A 7AfeA 76 06 Ht P6 W 37 33 aq 3o a s RECTx P0 TCKX T I A CLK J i CLK A fW1rVVVW cxra r Ci K D COGf CO VNF CTOfi CN ol f 3 R rxrgx CLK L tkTtfcRf 5 S 30 aq 23 3 7 r CH7 HH0 9 a AND P 0 i GfAP OOMPFM SELECT OUT sa r p 0 267 P 6 AMP J A L Burr s RECTCTX RE CTCTX forr R J GVEL AD 7 R aa r 76 B TCRX EXT rxci K fcK TXC4 IC FBRXCUK 35 A 35 A A A C X T T C T...

Page 70: ... 43 Triggered Edit Enable 98 BIT BUMP Sub frame Offset 1 External LTC Data Dependent 0 Disable 0 Disable 00 79 should be 00 To eliminate the possibility of operator error these settings should be confirmed before the operation is attempted With the storage registers set as prescribed prepared to perform the synchronization function of the tape time code value to the external LTC source block diagr...

Page 71: ...ut from the VVT board via pin 8 of CNJ 481 The CPU The selector circuit on the VVT board is directly controlled by the MODE A and MODE B command lines These dedicated command lines are interpreted from the data bus of the CPU by the 8279 Programmable Keyboard Display Interface IC3A on the CNX board The information stored in the register 37 mentioned earlier is sent from the CPU board via the data ...

Page 72: ...e connector CNJ 211 3 pins 6B 7B The signal routing and conditioning that occurs on the TCC card is quite similar to the CNL ChaNneL card The playback signal is first routed to a pre amplifier This head pre amp will unbalance the playback signal with an LM394 matched transistor pair instumentation type amplifier and 5534 differential amoplifier configuration The unbalanced output of this stage is ...

Page 73: ...l developed by the time code clock recovery circuit as the receiver clock PB RX CLK signal Using the two signals PB TC RX and PB RX CLK the SCC reads the serial data content of the playback time code signal The SCC then issues an interrupt signal to the Z 8002 microprocessor The Z 8002 then enables the SCC to transfer data onto the parallel data bus CPU Synchronization Operation w LTC 4 2 4 3 The ...

Page 74: ... board will be performing the synchronization of the APR 5003V This is accomplished by the Z 8002 circuit utilizing a Z 8030 Serial Communications Controller A comparison of the incoming external time code to the playback time code off tape is performed by the CPU circuit The information obtained by the CPU in comparing the value of the time code within these two signals is used to control the tra...

Page 75: ...board connector CNJ 400 The jumpers JU 1 and JU 2 are provided for impedance matching of the input stage of the APR 5003V to the output stage of the equipment generating the video signal Since all video playback signals exhibit some amount of jitter the video translator circuit on the VVT board incorporates a phase lock loop circuit This will allow the APR 5003V to lock to the incoming video signa...

Page 76: ...nformation stored in the register 37 mentioned earlier is sent from the CPU board via the data bus to the CNX board Hence the 8279 on the CNX board decodes the MODE A and MODE B commands and routes them via pins 9 and 10 respectively of CNJ 456 on the CNX board The VSR OUT signal as mentioned earlier in this section is input to the CNX board from the VVT board at pin 8 of CNJ 456 From the connecto...

Page 77: ...s the Head Gap Compensation circuit This circuit was designed to accommodate for varying head types such as amorphous and 1 2 inch stereo as found in a standard APR channel signal path Adjustment of this parameter for the TCC card however is not required since there is only one type of head that will be used for playback The ADM board receives this The final stage of the TCC card circuitry is the ...

Page 78: ... will use the data stored in the EPROMs Erasable Programmable Read Only Memory to compare the external time code source signal EXT TC RX to the playback time code signal PB TC RX servo system control data to the TIB board system control data will vary depending on the difference between the external time code data value and the playback time code data value difference is over 4 seconds transport t...

Page 79: ...g fluctuating DC voltage This voltage value is utilized by the CPU to counteract mechanical flutter experienced by the transport during PLAY mode This process is also termed Flutter Dampening 4 Reel Motor Driver RMD Board The RMD board fulfills the role of the final stage of the reel motor drive circuitry amplifiers are used to provide drive current for the supply and take up reel motors on the in...

Page 80: ...tic ring mounted on each reel motor shaft that is polarized alternately North to South As the poles pass over the hall effect sensors on the RTS boards a frequency of pulses inversely proportional to the radius of the tape on the reel is created These pulses are shaped by pulse timing circuits on the TIB board in preparation for reading by the CPU The TTS board has two output signals to the CPU bo...

Page 81: ... for the CSL and the 2 Transport Interface Board TIB Operates as the overall CPU interface to the transport servo and control systems All transport control status data is processed through this board The TIB board is located under the overlay panel between the supply and take up reel motors 3 Central Processing Unit CPU Board The CPU board is located under the transport function key panel on the t...

Page 82: ...ated to tape tension by the mechanical relationship of the arm with the two adjacent roller guides and the dancer arm spring A small bar magnet mounted on the tension arm sweeps over the Hall Effect Sensor Chip on the HES Board which produces a differential output related to the polarity and strength of the magnetic flux The HES circuits provide differential to single conversion offset adjustment ...

Page 83: ...ng the time required for adjacent zero crossings of magnetic flux to pass by one of the sensors This method works but has limited accuracy due to manufacturing tolerances Instead the two signals from the tachometer are combined with an exclusive or logic function on the TIB The resulting waveform represents the time required for one zero crossing of magnetic flux to pass by both sensors Since the ...

Page 84: ...nal conditioning for It contains the Its This 4 5 6 CSL Circuit Description IC1 1 4 2 4 IC2 IC3 and IC4 Transistors Q1 and Q2 and their associated components form the tachometer signal conditioning circuits Each of the tachometer cells A and B have an independent Automatic Gain Control AGC loop These two loops are identical so only one of them will be discussed The input stage IC1 A provides a gai...

Page 85: ...e tach pulses which are compared against the reference by the phase comparator IC6 the incoming capstan reference pulses monitored at TP7 The tach sum waveform also drives the Therefore IC3 compares the The result is square wave R26 The IC4 the is connected as a one shot which is sensitive to The IC5 is the optical isolator for These pulses can be The 74C932 Phase Comparator device provides two ou...

Page 86: ... at near optimum conditions for all motor speeds This offset stage IC7 is a major factor contributing to the performance of the CSL over a wide range of motor speeds IC7 is connected as a band pass filter which compensates the phase lock loop for the characteristics of the motor itself The output of IC7 can be monitored at TP9 which is the signal driving the output trans conductance amplifier JU 2...

Page 87: ... Description Since the RMD contains two identical trans conductance amplifiers only one of them will be discussed IC2 1 2 is a unity gain differential input stage Its purpose is to compensate for ground shifts between the TIB and the RMD Its output drives IC3 4 4 through the gain trim network which consists of R10 RV 1 and Rll IC3 3 4 is the summing amplifier for the output stage feedback loop The...

Page 88: ... The relay when energized connects 15 15 volts from the voltage regulators to the operational amps Turning the RMD on and off in this manner provides a safety feature If either of the 15 volt or 15 volt regulator were to fail the operational amps would drive the motors with maximum power thereby damaging the tape However if both the 15 and 15 volt supplies to the operational amps are not present t...

Page 89: ...e The CPU reads tension sample and MVC sample and hold signal into IC6 the A D Converter A D Converter data by addressing the A D Converter read location The A D Converter BUSY bit read by the CPU via IC17 prevents the CPU from reading data from the A D Converter during the conversion period takes approximately 15usec to complete Each conversion IC7 and IC8 3 4 form a D A converter Both the A D Co...

Page 90: ...range of the D A Converter output voltage from 10v to 10v A margin of 0 24 volts remains at each extreme of D A Converter output to allow for drift of the VFC over time The VFC output range is 0 to 28 8kHz for 10 to 10 volts input t V The VFC is used to generate the frequency ramp for the capstan motor at start up and supplies the capstan reference in vari speed mode The Voltage to Frequency Conve...

Page 91: ...would be redundant to drive them separately and the current required is well within the specifications of the driver devices IC13 IC14 IC15 and IC16 2 2 are signal processing circuits for the tachometer outputs IC13 buffers all 6 signals The exclusive OR gates of IC14 derive the Left Tach Right Tach and Tape Tach signals from the tachometer outputs A and B IC12 buffers these signals and drives the...

Page 92: ...ation TC EQ 1 and TC EQ 2 signals These time code output equalization controls originate at the CPU board They are decoded from the data bus by IC6 74LS373 IC6 receives an enable for the CPU data to be written to it v i a the AND function of A8 WR and CAPSTAN REF by IC2A The output of the buffer op amp is connected to the DLO hybrid through RV2 which is the LTC OUT level adjustment The DLO also ha...

Page 93: ...serial control interface microprocessor is located on the LNT board the physical location of the 9 pin connectors is on the CNX board The circuitry housed on the CNX board is quite basic The two 9 pin D sub SMPTE EBU NETWORK connectors TRIBUTARY PORT and BUS CONTROLLER EXTENTION PORT enter exit the CNX board via CNJ 801 CNJ 802 These connectors are routed to relays K3 BUS CONT EXT PORT and K4 TRIB...

Page 94: ...ted to the differential to single ended converter configuration of IC10A and IC10B The output of 1C10B pin 7 is connected to a line TTL converter stage IC11 LM 311 The output of IC11 pin 7 is TTL buffered and inverted by IC19F The output of IC19F is labelled PB TC RX and is sent to the CPU board via pin 28 of CNJ 450 The actual signal path of the PB TC RX is through the LNT board Here again as wit...

Page 95: ...field rate input frequency the output signal frequency will be one half that is 25 frames second EBU 29 97Hz SMPTE Drop Frame or 30 frames second SMPTE Non Drop Frame output from the VVT is useful for genlocking the internal time code generators of the machine which actually provide time code to the tape and to the LTC OUT connector In this mode the VVT board This will also work with an input Rela...

Page 96: ...n be similar to the time code format with the recurring data of 30 70 70 30 Note that if NTSC color video is fed to the VVT that the output frame rate will be 23 98 frames second Again this signal is internal to the machine and is used for genlocking the internal time code generators which supply signal to the heads for recording and to the TIME CODE OUT connector for output 4 5 12 5 Vertical Inte...

Page 97: ... left side of the schematic CNJ 400 and on the middle right CNJ 401 The video input connections come into CNJ 400 This is connected to two jumpers JU1 and JU2 which select the load resistance for the incoming signal The first buffer stage is a 5532 op amp IC9C which feeds to the other half of the 5532 which serves as the level clamp This output routes to a 75207 IC9B configured as a high speed com...

Page 98: ...1 CPU Operating Principles The transport CPU manages all of the tasks and functions of the tape machine It addresses reads and writes data to all portions of the machine Several major complex functions are carried out on the CPU Board itself This reduces the external harnessing and bus activity and provides flexibility in the design This board is a Dedicated Process Controller a small computer spe...

Page 99: ... the watchdog reset discussed in previous Transistor Q1 is connected so that the 5 volt supply must reach approximately 4 volts before Q1 turns on and begins to charge C4 through R5 threshold of IC23 4 4 approximately 0 5 seconds later the system reset line goes HIGH 5V and CPU activity begins The manual reset is generated by pressing the reset button SI which discharges C4 and holds the reset lin...

Page 100: ...upt requests from the LNT audio system keyboard sync phase measurement circuit TVI Gate and the chase function The Z8030 SCC and Z8036 CIO are the only devices allowed to interrupt CPU ACTIVITY priority of the two Chain When installed the Z8030 SCC has the higher The signal IDC Interrupt Daisy The IDC signal is output from the Z8030 SCC and acts as an interrupt enable to the Z8036 CIO The IDC sign...

Page 101: ... cell time Its output at pin 3 monitored at test point TP9 goes LOW 0V or ground when triggered at pin 6 and it cannot be re triggered until its time constant is complete The time code transition pulses at one half bit cell intervals caused by encoded ones in the time code data will not trigger the device Only transition pulses at bit cell boundaries will trigger IC37 Thus the falling edge of the ...

Page 102: ...xternal time code Input and Outputs the Record time code and supports the External time code generator The frequency determining device is the System Clock whose integers of frequencies relate to the 129kHz fixed capstan reference SMPTE non drop frame and EBU time code fixed rates SMPTE Drop frame is generated by control of software and the installation of IC21 a TCXO Temperature Controlled Crysta...

Page 103: ...shorter along with increasing time code bit rate of the time code It automatically adjusts for DF NDF and EBU time code and rates changes of bit rate caused by vari speed operation and synchronization The time code transition pulses at encoded ones in the Only transition evice The record transmit clock circuit works in the same manner as the external receive clock circuit but it is triggered by th...

Page 104: ... IC25 serial protocol data at a Baud Rate of 38 4 Baud determines the type of serial protocol according to the setting of DIP switch SI 8530 handles The SCC The output of SI is buffered by IC2 74LS244 and uses address lines A0 A7 to carry the information However IC2 can only be enabled when pins 1 and 19 are active LOW 0V or ground so during this time the 74LS244 outputs are active and the DIP swi...

Page 105: ...o LNT 4 LNT unloads data from the FIFO 5 Z8000 can know that data is ready by LNT by watching BUSY 4 5 14 4 Audio System Data Block In addition to the data sent between the LNT and the CPU the LNT also has control between the audio system MST card and the Transport CPU board for which this data can flow IC10 IC18 and IC22 provide a path IC10 is a uni directional device that sends the latched addre...

Page 106: ...4 1 CNJ442 TO FROM AUDIO SYSTEM NAME TO FROM EXPLANATIONS Z8000 CPU Bus CHIP SELECT Z8000 RD Buffered Read Enable Z8000 WE Buffered Write Enable SOFTWARE PROGRAMED RESET Z8000 A8 BIAS REF SIGNAL FROM CPU EXT CAPSTAN REFERENCE PARALLEL REMOTE ROLLER PULSE TO OUTSIDE TAPE DIRECTION TO OUTSIDE CHIP SELECT MVC CONTROL SIGNAL DC Voltage GENERATOR TC TO BE RECORDED Internal Generator REPRODUCED TC FROM ...

Page 107: ...y it consists of the control circuitry which forms the keyboard display matrix arrays for the front panel switches and indicators Included are the data bus drivers and the fluorescent display driver The End Of Tape EOT sensor circuit is also located on the KBD board The KBD board serves as the local user interface to the CPU system 8279 Programaable Keyboard Display Interface Block 4 5 15 1 The he...

Page 108: ...d on the KBD board This consists of the adjustable op amp comparator circuits for sensor and the LED driver circuit Q9 The comparators are fed from the photo transistor in the EOT assembly via pin 3 of CNJ 443 Adjustment of the EOT sensitivity is performed by the potentiometers RV3 RV4 Two circuits are included so that each may be set to a different sensitivity for instance one for sensing leader ...

Page 109: ...f the converter is routed to the 8279 The 8279 performs the encoding process on the data received and outputs this data to the CPU Upon receipt of this data the CPU issues the appropriate data to the TIB board for manual transport velocity control and illuminates the MVC LED DS 4 on the KBD board 4 49 ...

Page 110: ...al is routed to the AuDio Mother ADM board by way of a shielded cable harness Upon reaching the ADM the input signal is routed from the connector CNJ212 N N being the corresponding channel number to the appropriate ChaNnel Time Code CNL TCC Card edge connector CNJ211 N N being the corresponding channel number pin 1 HOT and pin 2 COLD The first stage of the CNL TCC card that the RECORD signal is pr...

Page 111: ...ignal and the Bias signal It is here at the FEX board that the final relay switch is thrown thus connecting the entire Record circuit from the LINE INPUT connectors to the RECORD SYNCHRONOUS PB head o The Bias and Erase signals originate on the Master MST card These signals Bias and Erase are routed from the MST card as clock signals to the CNL TCC cards via the ADM board The Bias and Erase clock ...

Page 112: ... Uncal Out Record EQ Forward Control Line Uncal I X Uncal In 4F Line in from ALN Amp i s Record Drive 5 mmm Switch p s to i v WV VMVAVAVW W VAV Record Head I tttt tttt A W VvV I LJI From IIIjJzA Buffer Commands and control fines Buffer i From ALN Reproduce V ALN Control Line from ALN Bias Rec Driver Record On Qff Bias CLK SV V S ANV WWANV AN WAM A V WVAV W Erase CLK AVAW W NV N V V V ANV V V V V V...

Page 113: ...CNJ212 1 CNJ215 3 CNJ214 3 CNJ213 3 6 TO REAR PANEL CH3 I O cc REAR PANEL x FEX CM UJ Q RECORD SYNC 6 3 3 a z O ERASE u 0 NOISE REDUCTION CNJ211 2 CH2 CNL BD 1 ot 3l INPUT CONNECTORS OUTPUT CONNECTORS CNJ227 TO REAR PANEL CH2 I O jCNJ212 T CNJ21S 2 CNJ2 14 21 3 L_ CNJ213 2 SOLDER 91 I2I 3 6 6 CAL OUT CH3 j CNJ7Q3 CNJ7I2 1 CH2 1 CNJ7Q 2 CNJ7 I I CHI CNJ OI CNJ704 1 CNJ707 CNJ7 3 7 13 6 X2 CNJ708 CA...

Page 114: ...HGC circuit compensates for variances in head gap spacing it is common to experience small differences in head gap from head to head The output of the HGC circuit is labeled REPRO SYNC LINK directed to the digital switch which controls the input to the LINE OUT circuit The command for the switch to pass the REPRO or SYNC signal instead of the INPUT signal is a combination of two command lines the ...

Page 115: ...ntrol keys on the Remote Control Panel is performed by the Connector Interface CNX board 5 2 2 MST Circuit Description The data provided to the MST is in 8 bit parallel format ADTA 0 through ADTA 7 One half of the bits provide data directly There is also an 8 bit parallel audio address bus input to the MST card which provides the addressing to the 3 eproms of the Master Card This address informati...

Page 116: ... The ERASE RAMP RATE and the BIAS RAMP RATES are not adjustable by the user on the APR 5000 Series machines IC30 provides global dim control of all channel cards when in Stop or Fast Wind modes This dim can be defeated in Fast Wind mode by enabling lifter defeat In addition IC30 provides headstack poll integration to confirm that the head stack is properly programmed for a designated machine Indiv...

Page 117: ...nual 5 2 3 Channel Card CNL Overview The ChaNnel Card CNL incorporates all of the audio signal record reproduce circuitry and performs all audio signal processing within its respective channel of the APR 5000 audio system The CNL is controlled by two data busses the Audio Data Bus ADTA 0 through 7 from the CPU board and the Parameter Address Bus PA 1 through 9 from the MST Card The Audio Data Bus ...

Page 118: ...ching and individual Record Sync switching IC31 provides the latching of data for Secondary Record Compensations as well as Bias and Erase Ramp timing This is accomplished by the use of distributed system clocks enabling pulses and safety features internal to the system architecture to prevent accidental erasure REC ENABLE The Master Card provides the Bias and Erase pulses required to start the Bi...

Page 119: ...nds from the Q outputs of IC38 and 39 Ramp Control Circuitry The external noise reduction control is provided by IC34 and IC44 When the channel card is provided with either a command signal input or record the opto isolator IC44 will provide the relay closure required to enable the external noise reduction relay refer to Section 2 of this manual for interconnection specifications O The audio input...

Page 120: ...ce or sync signal is then directed from the output of IC3 to IC13 whereby output monitor switching is provided The output from IC13 is connected to IC8 which is configured as an inverting buffer The inverted signal is routed to IC12 1 2 IC12 is not utilized at this time but may be implemented in the future The output of the second half of IC8 is then routed to IC21 This provides the amplitude cont...

Page 121: ...again used to step up the erase drive to the erase head Alignment Board ALN Overview 5 2 8 The Alignment Board provides user access to the audio alignment of the APR 5000 Included on the Alignment Board are also the ability for speed change control 5 2 9 ALN Circuit Description The basic hardware of the audio control monitor ACM and the alignment panel are identical IC1 is an 8279 programmable key...

Page 122: ...cial Totsu type screwdriver or by carefully using a standard flat blade screwdriver Newer units utilize Phillips type hardware 5 2 10 1 ACM Functions The ACM Audio Control Motherboard contains the circuitry that controls the audio mode switching and power amplifier in the APR 5000 meter houksing This board consists of an 8279 Programmable Keyboard Display Matrix Encoder interface a set of 74LS138 ...

Page 123: ...rs ICs 3 4 in addition an address line is selected causing the chip select line CS on the 8279 to go to a LOW true state The outputs of the 74LS138 drive two sets of lines This first set is key seeking the second LED illustrations of those keys IC3 drives the keyboard scan line for all of the keys located on the meter housing The return line for the keyboard is then fed back to the 8279 IC4 drives...

Page 124: ...works of C12 R13 and C14 R7 determine the low and high frequency roll off points of the amplifier The output of the amplifiers are fed first to the headphone jack located on the front panel of the APR 5000 This is a normalizing jack which feeds the signal to the speakers via a load resistor if no headphone plug is installed When a plug is inserted into the headphone jack the amplifier outputs feed...

Page 125: ...ve current required to turn on the LED R12 through R18 are current limiting resistors for the LEDs located within the switch assembly The resistor and capacitor on each gate of the FET provides the proper bias for turn on 5 2 12 Time Code Channel Card TCC The Time Code Channel Card TCC is located in the card rack which can be accessed by lowering the ALN panel Cards may be removed with power OFF u...

Page 126: ... However in this case these are used only by CNL cards since there are no TCC cards utilized in the APR 24 The data Direct control of the TCC is performed by the Master The Master Card MST converts the commands from This bus is The pre encoded parameter enables allow latching of selected data to the appropriate latches on the TCC card Some data is fed to the multiplying D A Converters which are ad...

Page 127: ...elope ramp and determine the direction of the ramp to travel initiation or completion of RECORD IC36 and IC37 provide the up down count required for initiation of RECORD as well as completion The output of the 2 counters provide a 4 bit output that is converted by an R2R ladder network This provides an envelope amplitude directly proportional to the 4 bit output of IC36 and IC37 This is filtered t...

Page 128: ...rol on the TCM in the meter housing via IC7 The input signal is fed to another digital switch IC14 IC14 determines the input select source The SLATE output is the input to the input calibration port on the rear panel of the machine via the MST card amplifier circuitry The signal is then fed to IC7 IC17 1 2 control from the ALN half of ICl7 2 2 the adjustment of RECORD high frequency equalization u...

Page 129: ...ut monitor switching function software due to the fact that there is only one time code head This function is also not supported by the The output from IC13 is then fed to IC8 and then to IC12 1 2 in the transport assembly of IC8 is then fed to IC21 control of the output monitoring circuit used to route the command for dimming of the output circuitry under CPU control another function not used for...

Page 130: ...o one of IC1 and IC2 are configured to provide the LED row column configuration needed by the 8279 IC Diodes D7 D13 limit the current flow in one direction from the 74HC08 IC1 When both inputs of the 74HC08 are high this produces a high on the output thus causing conduction of the FET Driver FET transistors Q3 through Q9 provide the drive current required to turn on the LED Resistors R12 through R...

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Page 132: ... 2 ROUTINE MAINTENANCE lists all necessary adjustments and their approximate intervals 6 1 Necessary Tools The following is a complete list of test equipment and tools required to perform maintenance or repair of the APR 5000 The test equipment marked with an asterisk standard technician tools cleaning supplies Section 6 1 3 and the appropriate test alignment tapes Section 6 1 4 are the basic tool...

Page 133: ...J 6042 670 A RT Spring Scale 200g 5kg Metric Nutdriver Set Metric Hexdriver Set U S Standard Hexdriver Set A Tenteloraeter T2 H12 2 Zeni th Block Rack Gauge Roller Guide Alignment Tool Brake Torque Hub Fixture Reel Height Gauge Torque Driver Time Code Decoder Fixture Center Track Time Code Head Gauge Spring Scale 5kg Spring Scale 1kg For additional test equipment and tool information contact your ...

Page 134: ...ntain a series of test tones at a standard reference fluxivity The tapes that are suggested for use are standard reference tapes manufactured by Magnetic Reference Laboratory MRL In order to retain the integrity of these tapes it is important to handle the tape with care Never store the tapes near any magnetic fields transmitters or expose them to extreme temperature or humidity Store them as you ...

Page 135: ... Tapes l MRL 21T204 7 5ips NAB MRL 31T218 7 5ips NAB MRL 21T302 7 5ips IEC MRL 21J 205 15ips NAB MRL 31T328 7 5ips IEC MRL 31J219 15 ips NAB MRL 21J303 15ips IEC MRL 31J339 15 ips IEC MRL 31L220 30 ips AES MRL 21L221 30ips AES MRL 21F101 3 75 ips NAB IEC Table 6 1 Recoi ended Test Tapes 6 4 ...

Page 136: ...Figure 6 1 Jigs and Fixtures 6 5 ...

Page 137: ...8 J 6220 320 A TIME CODE DECODER FIXTURE J9 CENTER TRACK TIME CODE GAUGE J 6220 320 A J10 J 6103 860 A TORQUE DRIVER 500g SPRING SCALE 7 732 050 50 Jll J12 200G SPRING SCALE 7 732 050 40 Table 6 2 Test Jig Description and Part Numbers 6 2 Routine Maintenance The APR 5000 is designed to minimize maintenance important preventative maintenance is regular cleaning and demagnetizing as described in Sec...

Page 138: ...n replaced it is important that the APR 5000 alignments relating to that specific area be checked and if necessary adjusted to accommodate for the new part or assembly following check adjustment procedures when installing new major parts or assemblies Refer to the 6 3 1 Adjustments After Head Replacement 1 Mechanical Height and Zenith Adjustment Appendix F 2 Electro mechanical Head Alignment Secti...

Page 139: ...stment Section 6 4 Cleaning and Demagnetizing 6 4 1 General Notes on Cleaning Before attempting the alignment procedures all tape guides and heads should be thoroughly cleaned and demagnetized Cleaning fluid or methanol commercial cleaning alcohol is applied with foam swabs or photographic grade chamois to clean the specified parts refer to Figure 6 2 for parts location refer to the specific secti...

Page 140: ... cleaning the capstan it is extremely important that the cleaning solution non detergent household cleaner does not drip into the upper bearing In order to avoid damage to the bearings during cleaning follow the procedure shown below STEP 1 Turn the power switch ON Remove the tape if any from the machine STEP 2 STEP 3 Remove the pinch roller STEP 4 Place an opaque object across the EOT sensor STEP...

Page 141: ...a vertical motion as shown in Figure 6 4 NOTE BE SURE THAT NONE OF THE CLEANING SOLUTION ENTERS IF THE CLEANING SOLUTION DOES INTO THE BEARINGS ENTER INTO THE BEARINGS THE LIFESPAN OF THE MOTOR WILL BE DRASTICALLY REDUCED Omp wab Dscfcptat Capstan shaft Rotation Figure 6 3 Recoi ended Cleaning Swab Placement Damp swab Dryswab I 1 Vartteal movamant Dackptala Capstan shaft Rotation Figure 6 4 Capsta...

Page 142: ...r switch OFF STEP 2 Turn the demagnetizer power switch ON STEP 3 Beginning with the Erase head start a circular motion with the demagnetizer approximately 18 inches 46 cm away from the front of the head Continuing the circular motion move the demagnetizer to within 1 16 inch without touching the head STEP 4 While continuing the rotation of the demagnetizer slowly move the demagnetizer away from th...

Page 143: ...ll have to be replaced Remember that the roller guides incorporate It is very STEP 1 Turn the APR 5000 power switch OFF Remove all of the roller guides and place aside in the order in which they were removed from the transport this will allow exact replacement of the roller guides to their original positions on the transport STEP 2 NOTE If desired the roller guides can be removed and cleaned one a...

Page 144: ...ONE Specificat ion Supply side brake tension Counterclockwise Rotation 360g 80g 80g 40g Clockwise Rotation Take up side brake tension Counterclockwise Rotation 80g 40g Clockwise Rotation 360g 80g When using a 50mm brake torque fixture 9 911 041 01 the specifications for adjustment are doubled NOTE 360g 80g 720g 160g 160g 80g 80g 40g These procedures need only be performed if there is a part or ass...

Page 145: ... and replace it with the 200g spring scale 7 732 050 40 While observing the reading on the spring scale pull the scale such that the reel motor rotates in the clockwise direction Observe the scale reading at the point at which the reel motor begins to rotate Perform this action several times to attain an average reading The average reading should be 80g 40g STEP 6 STEP 7 NOTE Since both the clockw...

Page 146: ...pring scale from the brake torque fixture and replace it with the 200g spring scale 7 732 050 40 STEP 13 While observing the reading on the spring scale pull the scale such that the reel motor rotates in the Observe the scale counter clockwise direction reading at the point at which the reel motor begins to rotate attain an average reading should be 80g 40g Perform this action several times to The...

Page 147: ...be replaced However if the user prefers the meter can be operated in the reverse direction by reversing the two leads to the meter If reverse direction performance of the hours meter is desired perform the procedure shown in the steps to follow o Turn the APR 5000 power switch OFF STEP 1 Remove the two securing STEP 2 Open the ALN panel door screws from the front of the power supply door and The p...

Page 148: ...ss the PLAY key PLAY mode This will put the APR 5000 into STEP 4 While the machine is in PLAY mode press the SHIELD DEFEAT key This will lower the shields STEP 5 While continuing in PLAY mode press the SHIELD DEFEAT key This will raise the shields STEP 6 Repeat STEPs 4 and 5 several times to ascertain an average operation performance of the shield assembly STEP 7 If the shield assembly is not perf...

Page 149: ...heck Procedure The Reel Tach Sensors RTS and the Tape Tach Sensor TTS should be checked and adjusted if necessary prior to performing adjustments on the tape tension or the Reel Motor Driver RMD offset adjustment These adjustments cannot be properly done when the RTS or TTS are out of adjustment In this procedure the output of the tachometer sensor circuits are set to have a 50 duty cycle There ar...

Page 150: ...Turn the APR 5000 power switch OFF STEP 2 Open the Transport Control Panel STEP 3 Connect the 14 pin DIP Clip to IC13 on the TIB board refer to Figure 6 9 STEP 4 Turn the APR 5000 power switch ON STEP 5 Load the work tape onto the machine STEP 6 Press the PLAY key the PLAY mode This will place the machine into STEP 7 Connect the ground lead of the oscilloscope to TP1 of the TIB board Refer to Figu...

Page 151: ...TEP 1 After Checking the TTSA signal with the procedure listed in Section 6 5 5 1 adjust RV1 on the TTS board for a reading of 50 duty cycle refer to Figure 6 10 6 5 5 3 Tape Tachometer TTSB Check Procedure Proceed with Section 6 5 5 1 STEPs 1 through 6 STEP 1 Connect the 14 pin DIP Clip to IC13 Connect the positive lead of the oscilloscope to pin 10 of IC13 via the DIP Clip This signal is the TTS...

Page 152: ... 98 RV2 RTSB m 3 2 4 c n i ii r cs c 1 RTSA RV2 RTS PC Board TTS PC Board TTS RTS Board Adjustment Potentiometers Figure 6 10 6 5 5 5 Supply Reel Motor RTSA Check Procedure STEP 1 Proceed with Section 6 5 5 1 STEPs 1 through 6 STEP 2 Connect the 14 pin DIP Clip to IC13 on the TIB board refer to Figure 6 9 STEP 3 Connect the positive lead of the oscilloscope probe to IC13 pin 2 via the DIP Clip Thi...

Page 153: ...4 Ensure that the supply reel RTSB signal has a duty cycle of 50 If the duty cycle is not 50 proceed with Section 6 5 5 8 Supply Reel Motor RTSB Adjustment Procedure rr 6 5 5 8 Supply Reel Motor RTSB Adjustment Procedure STEP 1 Perform the Supply Reel Motor RTSB Check Procedure Section 6 5 5 7 STEP 2 Adjust RV2 on the supply reel RTS board so that the RTSB signal as seen at pin 4 of IC13 of the TI...

Page 154: ... the 14 pin DIP clip to IC13 on the TIB board refer to Figure 6 9 STEP 3 Connect the positive lead of the oscilloscope probe to IC13 pin 12 via the DIP Clip reel motor RTSB signal Adjust the uncalibrated sweep of the oscilloscope so that one cycle of the waveform equals ten horizontal segments full scale This is the take up STEP 4 Ensure that the take up reel motor RTSB signal has a duty cyle of 5...

Page 155: ...n a NO TENSION mode must be adjusted to a minimum level for proper operation check adjustment MUST be made before the check adjustment of the RMD for tape tension This STEP 1 Remove the screws on the upper rear door and open the door Refer to Figure 6 11 This will expose the RMD board for adjustment n FOR OTHER CONNECTIONS TO SERIAL BUS CONNECT PARALLEL REMOTE CONTROL TIME CODE INPUTS AND OUTPUTS ...

Page 156: ... Voltmeter to the EMD board as shown in Figure 6 12 STEP 5 Set the DVM to the millivolts scale and ensure a reading of 0 001 volts DC across R18 reading is not 0 001 volts DC perform the adjustment procedure in section 6 5 6 2 STEP 1 If this STEP 6 Connect the DVM as shown in Figure 6 13 STEP 7 Set the DVM to the millivolts scale and ensure a reading of 0 001 volts DC across R17 reading is not 0 0...

Page 157: ...hat the voltage reading across R17 equals 0 001 volts DC machine is in EDIT mode and no tension or reel motor rotation is occurring refer to Figure 6 13 for DVM probe attachment points STEP 2 This adjustment must be made when the 6 5 6 3 RMD Tension Check Procedure The microprocessor controlled tape tension servo system feeds the tension data from a ROM table to the motor drive system The physics ...

Page 158: ...ocate to the center of the tape mass equal mass on both reels STEP 4 Press the PLAY key in PLAY mode This will put the tape machine STEP 5 Check the supply side tension by placing the tentelometer at the supply side check point shown in Figure 6 14 The supply side tension in PLAY mode should equal 70g 5g If the supply side tension does not equal 70g 5g perform the adjustment procedure listed in Se...

Page 159: ...move the upper panel This will adjustment loS 3 lor ower the screw e RMD STEP 3 Place the tentelometer at the supply side check point as shown in Figure 6 14 STEP 4 Adjust RV1 on the RMD so that the reading on the tentelometer equals 70g 5g Refer to Figure 6 13 for potentiometer location STEP 5 With the machine still in PLAY mode place the tentelometer at the take up side check point as shown in F...

Page 160: ...5vDC voltage level variation when the flutter dampener arm is moved from the extreme right side to the extreme left side of flutter dampener arm travel Hence RV1 on the HES board adjusts this voltage level value and RV2 on the HES board adjusts the zero point u The Flutter Dampening Arm Hall Effect Sensor HES board assembly rarely requires adjustment More often than not when the flutter dampener a...

Page 161: ...e of the following components require replacement Bar magnet mounted on flutter dampener arm assambly IC1 Hall Efect Element on HES board IC2 differential amplifier stage on HES board STEP 5 Move the Flutter Dampener Arm to the extreme left until the arm is in contact with the left side stopper exists Ensure that a minimum reading of 5vDC NOTE The voltage values found in STEPs 4 and 5 will probabl...

Page 162: ...meter should change 10 25vDC 0 25vDC within specification adjust RV1 on the HES board to attain this reading If the value is not STEP 8 Load a work tape onto the machine STEP 9 Place the machine into PLAY mode and ensure that the flutter dampener arm rides in the center of the end to end travel If the flutter dampener arm does not meet this specification loosen the screws A and adjust the spring t...

Page 163: ...00 DIN 45507 Weighted Start up Specification 30ips 1600msec to 3 flutter DIN 45507 Weighted 15ips 800msec to 3 flutter DIN 45507 Weighted The flutter specification or jitter content on any tape recording machine is of great importance to the quality of the recordings the machine will produce utilizes a Capstan Servo Loop CSL system to alleviate the inherent flutter that are a part of all tape reco...

Page 164: ...s than 0 025 30ips and less than 0 055 7 5ips If the reading on the flutter meter is greater than the specification perform the adjustment procedure in Section 6 5 8 2 STEP 6 Set the Flutter meter to start up check mode the start up specification of 900msec 30ips is attained Ensure Change tape speed to 15ips MID Speed place machine into RECORD mode as shown in STEP 4 and observe the flutter meter ...

Page 165: ...board may not be the optimum position for meeting the start up specification Hence if an adjustment is made to improve flutter be sure to check the start up specification after adjustment is made 6 5 8 2 Flutter Start up Adjustment Procedure Perform STEPs 1 through 4 of Section 6 5 8 1 STEP 1 Open the ALN panel door and remove the two securing screws of the power supply access door panel and open ...

Page 166: ...sitivity for adverse or varying light conditions such as flash bulbs film studio lighting etc circuit is physically mounted on the KBD board earnera The EOT sensor 6 5 9 1 EOT Sensor Check Procedure STEP 1 Turn the APR 5000 power switch ON STEP 2 Load the work tape onto the machine STEP 3 With the transport in STOP mode check the physical gap between the tape and the EOT sensor The tape should not...

Page 167: ...efully lift the KBD DSP asembly up KBD board for adjustment material cardboard thick paper etc between the KBD DSP assembly and the CPU board and rest the KBD DSP assembly on this material drawing shown in Figure 6 19 Remove the two This will This will expose RV 2 on the Place a non conductive Refer to the STEP 3 Load the work tape onto the machine n Q C 1 1 9 n i n if TW Figure 6 19 KBD Board Acc...

Page 168: ...ites Specification 14 4kHz 28 8kHz The variable speed adjustment is provided for two reasons First it will center the range of the vari speed play speeds This adjustment ensures a vari speed range that is equal magnitude in each direction away from the standard speed This means that the entire range from 5095 of standard speed to 5095 of standard speed is available Second this adjustment ensures t...

Page 169: ...f standard speed STEP 6 Ensure that the reading on the frequency counter is 1 5kHz other than 1 5kHz perform the adjustment procedure in section 6 5 10 2 If the frequency counter shows a reading STEP 7 Press the VARI key twice so that it flashes Press the key on the ten key pad once The display should read 50 0 Press the VARI key once more so that the VARI key is constantly illuminated The machine...

Page 170: ...o o o C23 ten icat ICM OJDAP wmo a o CMMM MUCH TP3 U Figure 6 21 TIB Board Layout STEP 7 Turn the APR 5000 power switch ON STEP 8 Press the STOP key once into TIB test mode 1 This will place the machine STEP 9 Connect the 14 pin DIP Clip to IC24 on the TIB board Refer to Figure 6 21 STEP 10 Connect the frequency counter probe to pin 7 of IC24 on the TIB via the DIP Clip Adjust RV2 on the TIB board...

Page 171: ...alibration Check Adjustment Record Calibration Check Adjustment Secondary Record Compensation Check Adjustment Bias and Erase Check Adjustment n These areas are covered completly in the check adjustment procedures to follow The order in which the check adjustment procedures are listed will facilitate optimum results As in all tape recorders some of the alignments require prerequisite check adjustm...

Page 172: ...lso provide an accurate distribution amplifier on the input side and an accurate combining network on the output side When performing the azimuth check adjustment procedures the output of the CAL OUT connector is a summed ouput of all audio channels This will provide the signal necessary to adjust the azimuth to the correct peak Utilizing the CAL IN and CAL OUT connectors also provides ease in cha...

Page 173: ...ip Specificat ion Azimuth adjustments are especially important gaps are not all parallel to the direction the tape is traveling segments of the same recorded wavelength w i l l enter and leave each gap at different increments of time The head azimuth adjustment performs the fine adjustment of the phase relationship between all channels of the multitrack head difference between all channels If the ...

Page 174: ...st tape tails out and keystroke 15min 30sec into the tape time display Remember that the APR 5000 displays must not be in TC mode STEP 1 STEP 2 Clear the LOCATE display and enter 5min 46sec into the LOCATE display STEP 3 Press the LOCATE key This will locate the machine to the approximate begin point of the 10kHz tone The 1kHz tone is located by clearing the LOCATE display and pressing the LOCATE ...

Page 175: ...6 1 1 continue with the wrap adjustment The wrap adjustment scew should be rotated to find the peak reading on the ACVM Remember to attain a reading on the ACVM the machine must be playing back the test tape as in Section 6 6 1 1 STEP 3 While playing back the 10kHz tone adjust the azimuth adjustment screw Refer to Figure 6 23 so that the reading on the ACVM is at peak amplitude peak amplitude of t...

Page 176: ...In the case of changed components in the input circuit this check adjustment procedure is mandatory to ensure proper alignment of the circuitry with the new component s installed 6 6 2 1 Input Level Check Procedure STEP 1 Turn the APR 5000 power switch OFF STEP 2 Connect the test equipment as shown in Figure 6 22 STEP 3 Turn the APR 5000 power switch ON STEP 4 Set the frequency generator to inject...

Page 177: ...t MM w I Figure 6 25 IND Key Location n NOTE Along with these indicators the meter panel will indicate that channel 1 has been selected for alignment This is signified by a 1 appearing in the STATUS display and the ALN indicator illuminating on the STATUS displayof the Meter Bridge Refer to Figure 6 26 0 O MONTTO RCPftO SYNC INPUT ALN R CO 0 SELECTED BUS wot 0 SEE EMSC OUTPUT LEVELS r PECOflO LEVE...

Page 178: ... key illuminating the STATUS display of the ALN Panel displaying an alpha numeric symbol Hexi decimal the VU meter displaying signal level readings and the INPUT LED illuminating on the meter panel Refer to Figure 6 28 NOTE Check the reading on the ACVM level of channel 1 4dBm 0 2dBm This is the input This signal level should be STEP 8 PRESET SYNC LEVEL L FWEQ H FREQ CONTROL STORE Hi 5 c GtaoTa Tl...

Page 179: ... 1 After performing STEPs 1 through 9 of Section 6 6 2 1 manipulate the INC and or DEC keys in the CALIBRATION section of the ALN Panel to adjust the INPUT signal level For this adjustment utilize the same test equipment connection shown in Figure 6 22 Refer to Figure 6 29 WO swmsemmmm j O O C D T O I M E I L I S S j Z J A m Q m Q mms STl rfri mrmJplu V 2 5 s A Figure 6 29 INC DEC Key Location STE...

Page 180: ...d the cal sum buss The differential line out is fed to the XLR connectors on the back of the machine The meter buffer IC9 on CNL output is routed to the VU meters and has a separate adjustment on the CNL card The cal sum buss is routed to the calibration output on the rear panel of the machine The VU meters will respond to the recorded signal not the output signal of the machine For this reason it...

Page 181: ...annel 1 on the ALN panel for 4db on the AC voltmeter STEP 3 STEP 4 Repeat steps 2 and 3 for channel 2 STEP 5 Store these parameters in preset 1 This is done by pressing and holding the CONTROL key on the ALN panel and while holding the CONTROL key down press the STORE key also on the ALN panel This action will cause the STORE key to illuminate STORE key is illuminated press the PRESET 1 key The st...

Page 182: ...to check adjust the record level and high frequency equalization This section will deal with the Repo and Sync level check adjustment procedure The Repro and Sync level check adjustments are made using the appropriate test tape 30ips 15 ips or 7 5ips This will ensure that the APR 5000 Repro and Sync circuitry level adjustment is set properly to the reference fluxivity desired Repro Sync Level Chec...

Page 183: ...ridge when the machine is in PLAY mode automatically select SYNC mode This will STEP 8 Repeat STEPs 2 and 3 STEP 9 Press the LEVEL key in the Sync section of the ALN Pane1 STEP 10 Repeat STEPs 5 and 6 for the Sync circuits NOTE It is important to ensure that only the 1kHz tone is used for this check adjustment procedure This will require locating to the beginning of the test tone several times dur...

Page 184: ...t to read 0VU 0 2VU Repro Sync High Frequency Response Check Procedure 6 6 5 1 STEP 1 Turn the APR 5000 power switch ON Select the desired speed 30ips 15ips or 7 5ips STEP 2 STEP 3 Select REPRO mode by pressing the REPRO key on the meter bridge Load the appropriate test tape onto the machine and locate the 10kHz tone bottom of page 6 45 for assistance on location of the 10kHz tone on the MRL test ...

Page 185: ...e INC and or DEC keys in the Calibration section of the ALN Panel to adjust the signal level reading on the bargraph to 0VU 0 2VU STEP 6 STEP 7 Repeat STEP 6 for all channels requiring adjustment To access the remaining channels press the IND key until the ALN section of the meter bridge indicates the channel number desired STEP 8 This will when in PLAY mode Press the SYNC key place the machine in...

Page 186: ...he record calibration will be the deciding factor of how the alignment is set Never use old tapes to adjust the record circuitry calibration This may result in an alignment which is less than optimum for the type of tape being used Of course for optimum performance the reel of tape that is to be used for the session should be used to calibrate the record circuitry In some cases this is not possibl...

Page 187: ... confusion when selecting the proper overbias setting For more information on overbias settings contact the Sony Regional Service Representative For general purpose operation it is recommended to select an overbias setting that both preserves the high frequency response and provides the lowest distortion in the peak program area a level that the recorded program material does not attain on a regul...

Page 188: ...efer to the CAUTION note in Section 6 6 6 Ensure that the tape has been fully erased STEP 3 STEP 4 Press the IND key on the ALN Panel until the STATUS display reads 1 STEP 5 Select HI SPEED and press the LEVEL key in the INPUT section of the ALN Panel STEP 6 Adjust the frequency generator or console oscillator to inject a 10kHz sine wave at 4dBm into the machine properly adjusted channel 1 VU mete...

Page 189: ...NC or DEC key in both modes to attain a reading of 0VU STEP 21 Press the IND key on the ALN Panel until the STATUS display reads 2 STEP 22 Repeat STEPs 16 through 20 6 6 6 2 Record High Frequency Check Adjustnent The record high frequency adjustment is made to set the record circuitry high frequency equalizer It is done while in the RECORD mode using the tape type for which the alignment is being ...

Page 190: ...Sync head This is necessary because the test tapes are full track recordings Refer to Figure 6 32 When the full track recording of the low frequencies from the test tape are played back through a multi track head the low frequencies that are recorded in the guard band area are read by the playback head This will cause a false reading on the meters as more signal is being read by the head than a no...

Page 191: ... or console oscillator to approximately 80Hz for 30ips or 40Hz for 15ips STEP 1 STEP 2 Place the APR 5000 into RECORD mode Press the REPRO key for all channels on the meter bridge will place the APR 5000 into REPRO mode for all channels This Sweep the frequency generator or console oscillator frequency control slightly to ensure that there is a peak STEP 3 STEP 4 Record approximately 4 minutes of ...

Page 192: ...t is desired to use another tape type refer to the chart in Table 6 5 and set the RCB and RCF accordingly Tapes of less contemporary formulation and possibly those of future formulations may require some deviation from the chart NOTE If the battery back up on the CPU board is lost for any reason these adjustments will be required for all preset locations TAPE TYPE 30 IPS 15 IPS 7 5 IPS 3M Scotch 2...

Page 193: ...n the ALN Panel DOWN press the RCF LEVEL key in the RECORD section of the ALN Panel RCF in that speed in the STATUS display perform this procedure for both speeds This will display the setting of the Remember to STEP 5 Manipulate the INC the desired setting or DEC key to adjust the RCF to STEP 6 While holding the CONTROL key on the ALN Panel DOWN press the RCB H FREQ key in the RECORD section of t...

Page 194: ...erate width profile when playing back long wavelength signals words better low frequency response at 30ips codes provide a shelving high frequency boost from 10 to 25kHz with increasing control codes from C8 hex to CF hex In other These control Adjusting the gap compensation setting would be required if heads of significantly different gap width are used extensive lapping cause a change in high fr...

Page 195: ...6dB RC8 REC EQ W FREVAiLING OVERBIAS LOSS Figure 6 33 Secondary Record Compensations 6 64 ...

Page 196: ...code data stream STEP 1 Turn the APR 5000 power switch OFF STEP 2 Expose the transport casting by removing the two securing screws on the rear of the top rear cosmetic panel and removing the panel securing screws for the KBD DSP assembly and opening the transport control key panel Remove the two STEP 3 Remove the three ribbon cables from the CPU board leaving only the power connector connected t i...

Page 197: ...LK and PB RX CLK Waveform STEP 8 Connect the positive lead of the oscilloscope to TP8 REC TX CLK on the CPU board STEP 9 Ensure that the waveform present at TP8 is equivalent to the waveform shown in Figure 6 36 waveform is not equivalent adjust RV3 on the CPU board to attain this reading on the oscilloscope If the O 550 us J OIV t RISING EDGE 275 us S OIV 275 us 5 DIV Figure 6 36 REC TX CLK and E...

Page 198: ...e not necessary for regular maintenance of the APR 5000 replacement of the PC board should these adjustments be necessary Only in the event of a 6 8 1 MST Board Bias and Erase Clock Adjustment Before performing this adjustment please read Appendix A The appendix has a complete explanation of Low Frequency Artifact LFA O Necessary Tools Oscilloscope Extender Card Potentiometer Adjustment Tool tweek...

Page 199: ...al out Input a 1kHz 10db sine wave 510nWb m on all tracks 1 evel minute Adjust Frequency on voltmeter for maximum Press the AFC button Record tone for 1 STEP 9 Turn signal generator OFF and rewind tape to the beginning of the tone STEP 10 Connect Frequency Selective Voltmeter to CAL OUT or to the line output of channel 1 STEP 11 Put all channels in RECORD READY and press RECORD STEP 12 Ensure dept...

Page 200: ...g channel in RECORD READY mode The channel is toggled between RECORD and PLAY mode while checking for the ramp ON and ramp OFF time The adjustment will set both ramps to the same duration A symptom of this adjustment being out of specification is an unusual punch in punch out noise J Necessary Tools Oscilloscope Work Tape Scotch 226 etc Potentiometer Adjustment Tool tweeker Extender Card N A Prere...

Page 201: ...ines i e INPUT DIM procedure below when making this adjustment This transient Refer to the ACVM Hewlett Packard 400FL or equivalent Potentiometer Adjustment Tool tweeker Extender Card Necessary Tools n STEP 1 Turn the APR 5000 power switch to the OFF position STEP 2 Remove the suspected CNL card from the card cage and place the extender card into this slot suspected CNL card onto the extender Inst...

Page 202: ...n contains all schematic diagrams and IC technical Data for the APR 5000 Series machines Circuit descriptions text for each of the boards are provided in Sections 4 5 of this manual The appropriate text reference pages are listed at the bottom of each schematic diagram 7 1 ...

Page 203: ... 7 2 ...

Page 204: ... board 0 RG 1 board j RG 2 board MAIN UNIT T ACM board AHB board 3 ADM board 7 ALN board CNL board CNX board CPU board CTM board 9 DSP board FEX board H HES board KBD board MSB board LNT board MST board RMD board g RTS board 18 SBR board TCC board For APR 5003V TCM board For APR 5003V TIB board TTS board WT board For APR 5003V Figure 7 1 PC Board Locations 7 3 ...

Page 205: ... ACM ACM Main Unit Main Unit ACM BOARD 1 619 166 12 Component Side F G H J E 6 6 1C 1 619 166 12 SOLDER SIDE PATTERN ACM Board Layout Figure 7 2 7 4 ...

Page 206: ...42__ _P 43 R44 R 45 R 46 R 1 1K 2 METER 7 METER 6 METER 0 2 METER 0 2 2 4 RETURN LINE 1 3 METER GND METER GND 3 T 3 METER 1 3 METER 1 y 9 RETURN LINE 2 5V LAMP 4 C1 4 5V LAMP METER 2 METER 2 4 4 R35 I I 10 RETURN LINE 3 X 1 50 5 LAMP GNO 5 j LAMP GND vw METER 3 5 A C2 470pF y RECORD OFF 3 6 6 RECORD OFF 2 If METER 4 6 18 V y r 3 5 6 12 ERASE OFF 3 7 7 ERASE OFF 2 C8 METER 5 ul A y R 47 R 10 RECORD...

Page 207: ...N 229 20 ALN 229 19 ALN 229 18 ALN 229 17 ALN 229 16 ALN 229 15 ALN 229 14 ALN 229 13 ALN 229 12 1 O HEAO 7 2 15 2 O HEAO 6 3 r J 3 0 HEAO 5 4 i 13 5 4 O HEAO 4 5 12 5 O HEAD 3 6 11 6 C HEAD 2 7 10 7 O HEAO 1 8 9 a 619 167 11 9 SOL JE PATTERN O HEAD 0 9 Figure 7 4 AHB ADM Board Layout and AHB Schematic Diagram 7 6 AHB BOARD BOARD NO 1 619 380 11 S HIGHER APR 5002 5003V ...

Page 208: ...E AADR 7 AADR 6 C AADR 7 C AADR 6 11 29 29 12 11 29 DOLBY RELAY LOW N 2 DOLBY GNO N RECORD OFF 2 ERASE OFF 2 13 14 AADR 5 30 RECORD HOLD AADR 4 C ERASE PULSE 0 KEY 30 AADR 5 13 30 14 AADR 4 100 KHZ 400 KHZ EXTERNAL R R 1 EXTERNAL R R 0 13 30 14 WB B is 16 AADR 2 AADR 2 AAOR 3 C 31 ACNLINT AADR 3 18 15 31 RECORO OFF N 31 RECORO HOLD EXTERNAL R R 2 15 ERASE OFF N 6 31 f RD B AADR 1 C ACNTINT 1 7 18 ...

Page 209: ...ALN ALN Main Unit Main Unit ALN BOARD 1 619 168 12 Component Side Figure 7 6 ALN Board Layout 7 8 ...

Page 210: ...N LINE 7 PA 6 WV I I BIAS LEVEL RECORD EQ PRESET 1 PRESET 2 PA 7 PRESET 3 34 LOW SPEED MID SPEED HI SPEED 1 I I 20 niiDZ iZZ nZf 1 LED ROW 0 snO jlZK PA 8 35 LED ROW 2 PA 9 36 LED ROW 3 CHAN 0 37 LED now 7 38 CHAN 1 fN o m n o N STORE 39 CHAN 2 z z z z z z z z 2 2 2 2 2 2 LED 2 01 08 2N3904 P1 CHAN 3 40 3 3 3 3 3 3 3 COLUMN 0 J S22 O o CHAN 4 O O O O O o 41 o u o CJ J u u a 5V CHAN 5 42 Q Q Q Q Q ...

Page 211: ...CNL CNL Main Unit Main Unit S N APR 5002 20001 TO 20300 CNL BOARD 1 619 158 11 Component Side F E D C B A G ft 9 mt4 mi 1 6 9 158 SIDE PATTERN i i c Figure 7 8 CNL Board Layout Early 7 10 ...

Page 212: ...c r 7 1 1 ...

Page 213: ...4 35 w CE R 84 4 C12J ft n w w l2i5 5 R74 R39 r a C44 B 554 C3 C32 R86 R7j IE QCUD lCl6 i RBl 1 4 4 6 4 1 4 A 34 A aj ft 4 g JW4 4 IO IC38 ti v 0 C J Sin 78 l CVJ rr R80 0 09 1 tf J JW5 5 c Ri84 C4 i5 i T S 1 C43 a R 79 3R T1 oc aciGiD a TT C46 rf42 RB2 S n74 gf Ac35 C Wi rc il f2 V f rr 0 o RI0IR99 o I 36 n CIS CO 7s fO RI05SR104IRI02IRI00 4 o 5 Cl70 co ijffl W 4 i s ft f 4f CO A CE 5 i W 4 v 4 J...

Page 214: ... IS 8 10K i 15V 7 AG 2 5 IC7 r IX IS 14 T WV 20K IX SLRTE BUS rm I 1000oF TL072 7 8 iT5g CAL SUM t4 i 1 j wv 2 13A G INPUT N Cl 09 2200pF T 10 6K t OUTPUT UNCHL IC29 14 14069 C34 I 3 4 i O isv I IC 408 t v fig I 2 43K T3B j INPUT UNCflL 5EN0 l SLATE REC L 1 1 30 15 CAL ON INO KEC INPUT UNCRL 14069 IC 40F TL072 R 169 jINPUT UNCRL RETRNj 148 WV IC29 15 IK 160 OUTPUT UNCAL SEND AG R 1 85 R170 OUTPUT ...

Page 215: ... 4 rSA 024 BIAS N 74HC32 T 1C33A 2 T 10pF 3BL 1N914 C64 A6 I 1F i 1BV IC35 12 btL LUflP 15V PG_L SEE NOTE 5 I IR148 R 1 49 22 35 47K 47K I 74MC08 AG 74MC32 43R 2 PHB i e 10 IC17 15 8 AG 1 AG 42Bl _i 1C17 6 CB5 REC L EO hs AGJ_ LOGIC 18V 74HC08 5V GNO CAP IC 15V I 42AI 74HC32 4 lC32BL2 74HC08 2 PA2 12 T TT T n IC5 1S REPRO LU HJIC330 17 C96 17 5 04 C70 LH U Tff3 Cl 30 C131 Cl32 Cl39 Cl 26 Cl 28 Cl ...

Page 216: ...Main Unit CNX CNX Main Unit CNX BOARD 1 619 162 11 Component Side 1 2 3 4 V 5 6 7 j SOLDER SIDE PATTERN 619 162 11 Figure 7 11 CNX Board Layout r 7 15 ...

Page 217: ...VER CERA IL TYPE 2 ALU D OOE ARB I l i ALL ICNERS AR L R D F i e8 A 3 A u _ LS STOR6 ARE V4 OV NAS 1 8 vs 5 VERTICAL LE AO TV PEL Pc 7 3 PC 7 16 44 REWIND DI 017 5 12 R76 5 R67 i 45 iff C QlEADT U FOREWARD PLAT RECORD STOP REMOTE Sv REMVOTt SV INPUTS 5J ICZ 6 I IC33 1 RLE iCi Vcc h Pw3 I CLK S271 RL s ii iuc 4 kpQ N RL 4 S RL5 Is RL6 1 X J RL7 s 1 RESET St 12jRD IL wu WV o 5 A W o 5 46 i DG RL0 V ...

Page 218: ...O r J QUOa n o COT5 on oca aon 5 r r on v 5 C CD J U U U Oo O 1 H d EI 05 o oxi ssrooa I o fj rs O z ro cn v z or _ or v a El or t or a to j 3 SSiixi OTTO o o or on J OOQ TO T7 TO c 3 C 3 C 3 zT o or C 3 C 3 C 3 C 3 3 c n CTOO c 80 z F 0 4 c Oj c 0 c c 3 C 3 3 C 3 C 3 3 C c r o o a 3 3 3 C 3 C 3 C 3 C 3 C OM C c 3 3 C c 3 C 3 OOQ 3 3 C o c 3 ro O O O r c v C Oc3 4 6 o o o p o potj o o o p p o o a ...

Page 219: ...4 10 05 SV EXT SRC 3S EX TRPE TRCP 35 R83 R80 160K 9 06 TB 049 019 06 36 5600 4700 5V T 36 r IC4AT7 n tX t 5WL at L CRPSTRN REF u7 EXT 5RC 5cL 8 9 37 EXT TRPE 0 R 4 BR P 37 1 050 jj JOTE 3 EXT TRPE TRt 38 38 SPRRE 470 5V IC17E 74LS04 IC17F 2 EXT SRC 39 5L0U WIND 5PRRE 39 IC7R TO 40 SPRITE 40 UK 5T Er 6 3 EXT TRPE TRCH I TTLLHN INPUTS 41 D1 15V ULHI V R2 DG RE 03 i 5 4 42 rim a i i SP7 127 02 01 T ...

Page 220: ...I z IC22 IC 4I o 1 I w 0 i m i 4 C8 R6 i C37 OZER IC34 RN6 tL w RI4 R 62 I ICIQ J 4 i 4 s i o Dr 3 OB U 4 K lO cc o IC 42 R 28 JH IC3 R 3 4 V IC20 39 C39 v 0 TP 3 tv V ICI9 C4 0 C33 IRN5 IC30 RN2 5 M 0 si osr t I 4 w J A f i t it t 4 iBQ EZ 57 C22 v t 5 V C23 N095O RNI e i T r if 1 4 S t POWER icso nn ICH f IC6 _ TF2 R 390r CPU 1 619 16H2 TP1 o ICl 2 IC23 SONY MADE IN JAPAN CIDcig I I SOLDER SIDE ...

Page 221: ...14 25 LA9 24 Lftlt 25 LA12 LA8 3 26 LA 14 25 Lftel 24 LA10 23 LRl2 22 TO 1000 1Z A7 A13 f 7 A13 IC4SB POI VTF LA7 4 LA7 4 LA6 5 LA5 6 f 6 A8 A6 A8 3 74MC14 BIAS REF R68 R67 LA6 5 02 MS A9 AS A9 IC45C LA5 6 2N3904 A4 All A1 1 A4 74MC 14 6 2700 1Z 2700 1Z LA 4 7 LA 4 7 LA3 8 Lfl2 9 03 TO RD TO IC450 M3 A3 LA3 8 LA 2 9 LAI 10 21 LAl 1 2fl TOM 21 LAl 1 20 W 74Hi 138 2N3904 5V M2 A10 A10 A2 9 74HC14 LA...

Page 222: ...3 T 4 5 V 4 MC 175 T VCC U J 30 33 li L NC O XXX RN 4 1 i w 4 HC 74 CT VCC oi n 74HC 74 ET VCC 01 3 1 IC 26B 1 14 1 14 IC 260 IC 320 5 74HC 86 IC 32C 2 13 2 13 L TOCH Q 6 3 R24 4 1 NC 2_30 3 ill 1 2 3 1 2 3 02 02 0 5 V 1C88 ci 03 iD1 02 2 NC or 3 12 00 ll T 4 LS 26 _ 1C 26C 4 1 1 74HC 174 4LS 26 4 ST ST p 3 O 4 Tp 4 Q _ _ 5600 f 4 l 10 5 Q1 S7 U OT 02 9 GND 07 1 VCC IC 260 S7 R23 01 R22 2 15 R TPC...

Page 223: ...OS REF 4 4 nsv EXT TACH 40 VARI SRC 1SV t M TIB C5 T TACH 5VQ 5 FG OG 77 6 KtbE 1 R60 5600 L TSCH 7 BIAS PULSE 8 R61 5600 SPECIFIC NOTES R TOCH 9 PB TC RX EXT TC TX REC TC TX EXT TC RX I R62 5600 10 A IC11 15 THE STATUS DECODER PROM T 9414 200 1 B PIN 1 OF IC 13 ONO ICl 4 IS VPP FOR 256K EPROMS OR ADDRESS BIT 015 FOR 512K EPROMS C PIN 26 OF ICl 6 ONO IC 17 IS CHIP ENABLE FOR 64 K SRVM DEVICES OR V...

Page 224: ...CTM Main Unit CTM BOARD 1 619 165 12 Component Side O O u ui r U 1 i C7 LDLEU 5YFfL 1 619 165 12 SOLDER SIDE PATTERN Figure 7 17 CTM Board Layout 7 23 ...

Page 225: ...c3 5V LAMP S5 SYNC 4 9 5V LAMP VN10KM R3 1SS119 1SS119 N L 5V LAMP 180 R7 ii LAMP GROUND 5 Q2 L D5 R1 5 6K 200K 0 01 50 REPRO ERASE 2N3906 KEYBD SCAN 5 RECORD OFF N 6 WAr o o D16 R15 V R4 S3 RECORD READY N 82 ERASE OFF N 7 WV 1SS119 180 LN28RP vw R2 5 6K WV S4 RECORD OFF N 4 8 L L LED ROW 3 D6 1 D10 L KEYBD SCAN 6 Q6 O O 9 14 ERASE OFF N 4 VN10KM 1SS119 1SS119 KEYBD SCAN 1 10 LC4 R8 i 200K INPUT 0...

Page 226: ... o S20 4 i I OTOI f 027 nlntPA lSLS 2uioijjCJLSiti to 11 026 S27I i 6 030 03 4 _ 028 A 029 olfT 4 fO S28 S 29 S 30 ii ool ooo B TC REC SPOT O O i 1 StMisfcsi Dftai MlWoWlk i 2 3 I SS6 036 37 037 S 38 038 S39 03S S33 Q33i S34 o o o EsESSi ii Iti o o i ki i v N SVJrV t tfiWoToto 5 LOCATE o SHIELD O SOLDER SIDE PATTERN 1 619 170 11 Figure 7 19 DSP Board Layout 7 25 ...

Page 227: ...T t FO 3 P L HL3 F1 4 RL 3 5 N RL4 6 RL5 r A RL6 8 02 NC LR4 tR7 03 04 05 OS 07 NC LR2 RL7 9 Si 1 S13 S14 S15 S12 S1S l foul A012I foisl foul foisl 0 0 1 O 0 1 O 0 1 O o I 0 0 1 o 06 10 N V 01s 5T 11 52 12 G TC F S3 DSP 13 OSP 3L4 04 NC NC 14 VLC4 05 15 06 16 17 RES LC3 7 7s5 7 7s3 7 7 7 Xj i _IIFJL lj_L o l O 0 1 o P 0 1 0 1 o O 0 1 O 0 1 NETWORK LOCAL C 4 5 S E VARI 16 NC LR2 LRO LR1 NC LRS LR7 ...

Page 228: ...300 I Sj 3 v s SOLDER SIDE PATTERN 619 179 II FEX BOARD 1 619 179 13 Component Side S N APR 5002 S N APR 5003V 10001 AND HIGHER 20301 AND HIGHER ill 331 1 w I i 9 Jt Hi o 4 vm v W iS HI 3 m SOLDER SIDE PATTERN 619 179 13 I Figure 7 21 FEX Board Layout Early and Late Model 7 27 ...

Page 229: ...ASE SEC C4 3 SEC I ERASE C8 PRI PRI SEC ERASE C12 2 1800pF I ERASE I 4 1800pF SHLD 2 4 ERASE 1800pF 4 J I 2 SHIELD CNJ220 2 SHLD I o Jr CNJ220 1 I CNJ220 3 5V CNJ204 1 2 RESERVED 3 SYNC CH2 4 SYNC CH1 SYNC CHO 5 6 ANALOG GND NOTES UNLESS OTHERWISE SPECIFIED 1 ALL RESISTOR VALUES ARE IN OHMS 1 8 W 1 o 2 LT L2 1 3 ARE SHIELDED BY WRAPPING EACH INDUCTOR WITH M METAL THEN INCAPSULATE THE WRAPPED INDUC...

Page 230: ... TPB IC2 GC 1 C2 2 0 1 50 R14 A W 8 15V R6 10K 10K 6 wv R4 75K R5 15V 10K y DI0 3 R74 wv 77 R7 10K i SOLDER SIDE PATTERN O i 9 S 1 1 15V C4 C5 10 25 10 25 1 GROUND R12 77 1000 R10 10 i 2 15V VW o Vz IC6 0 1 50 R11 10 D1 15V 15V 3 l RD5 1EB2 TENSION 4 CNJ401 NOTES UNLESS OTHERWISE SPECIFIED 1 ALL RESISTOR VALUES ARE IN OHMS 1 6W 5H 2 ALL CAPACITORS MEASURED IN MICROFARADS VOLTS 3 HALL EFFECT SENSOR...

Page 231: ...R74 33 R7 2N3 I 04 I j 4 i 024 mm Afi 2 023 1SS11 I n f 3 0 R 05 C4 I 470 RL 3 7444C32 T issm L A 7S 410 1 4R 4HC0 I DM I R77 100 1 4W t NV Q 24V Rl P TT r IC 10 T Rl 4 IA7 I 410 STOP iR 3 4 07 J i olc j Pjf 3 470K ONI Oil l 1 I 4 C3 1 0 2N3 I 04 1C 20 0 TL0 4 10 24 P 4HC04 r Rl 1 SS111 4MC 0 I I 2 STOP 0 20 sv t 0 T 2 t SV 0 4V RN1 4100 SIP RCLK 10 OSP AO Q2 07 o 40 2 EXT 38 RLO 00 2 03 0 TC RX i...

Page 232: ... 1 619 159 11 MSB BOARD Q 5V R1 100 I 5 wv 3 I v i LEFT MUTE S1 I O O 2 I O O 4 i i i RIGHT MUTE S2 i i 1 wv R2 100 CNJ232 NOTES UNLESS OTHERWISE SPECIFIED 1 ALL RESISTOR VALUES ARE IN OHMS 1 6W 5 Figure 7 25 MSB Board Layout Schematic Diagram and LNT Board Layout MSB BOARD BOARD NO 1 619 159 11 S HIGHER APR 5002 5003V 7 31 ...

Page 233: ...V 4 17 A6 A02 4 16 3 4 14 3A M 37 ROM 29 BUS PJLSE 14 AO4 16 5 A5 AOl 3 17 15 2 A ZCSU 38 I28P1 H 30 JOIO CF 7 To A03 15 6 AOO 2 A 4 18 16 POI VRTC 39 ll 4 31 AJCIC IRQ EN1 EN2 RO LD t A02 13 7 A3 51 G2 SPARE 1 40 IC16 UN S 32 TOl9 A3 6 11 AOl 12 0 A2 MC74HC161N NT IRQ 33 r0 IC4 8PIN CTz 07 12 1 A07 12 5 1 AOO IC13 27128 25 014 004 013 003 012 002 011 001 34 REC TC T 06 10 A06 A1 13 4 IC YPE MR I ...

Page 234: ...MST MST Main Unit Main Unit MST BOARD 1 619 169 11 Component Side S N APR 5002 20001 TO 20615 A E B C F D SOLDER SIDE PATTERN 1 619 169 11 x MST Board Layout Early Model Figure 7 27 7 33 ...

Page 235: ...1T2 4 2A3 2Y 44143 1Y 3 2A2 2 T2 1 i A4 1Y4 7 B 0 36 C2 35 CIJTDRE 4A 4 y i i 5 4 4_ ncos 1 16 rRS PULS ERR 0 AOTAB 4 S APTA 4 AOTA 4 S A STAB 4 TQH4 ADTA8 4 j S A STAB 4 A o I A R 4 2 2 Sr J ca a 2Q 5 3 A4 tw 9 A 8 Aj P 4 AOTAB 3 6 IS 3RR 3 AOTA 3 AETA 3 AQTAB 3 A TA6 3 6 AgTAB 3 6 4 O I AASR 2 VW7 3Q 1 bQt Tf 69 hr 6Q h 5Q 3Q 7 3T XH 2 34 7 APTAB 2 1 7 BRR 2 APTAB 2 ACTA 2 c AB 2 APTAB 2 4 APTA ...

Page 236: ... U V MST BOARD 1 619 169 13 Component Side S N APR 5002 S N APR 5003V 10001 AND HIGHER 20701 AND HIGHER RVI A f z nl RV2 z 1 0o I UJ E a CL 1 3 ro V i CD CD Si 35 1 2 a SOLDER SIDE PATTERN Figure 7 29 MST Board Layout Late Model 7 35 ...

Page 237: ...7 19 ERRS 18 E 2 l7 W1 2 19 29AI AA0R7 1A 1 in 2A4 2Y 4 1 A2 1T2 2A3 2Y3 1A3 1Y3 2A2 2Y2 1 A4 1Y4 2fll 2Y1 80 IQ 80 10 80 20 70 20 70 30 60 30 80 40 50 40 SO IC2 1 R a l ay sx l l gu 3 i ftV 3 ICB C53 l iaa AAPR7 o T H0 i ii ru T 18 80 171 IC7 I 22 25 47 IC13 EH 2981 i 30A AA0W8 O C74 AA0R6 4 17 TH T rn T 3 20 70 20 70 48 1 100 22 25 O 50pf AA0R5 5 FUTURE AA0R5 10 TT 20 70 20 70 i i sy sx a l eW S...

Page 238: ...V IC4 RIGHT REEL MOTOR C8 L 1 50 T 1 CNJ 471R C10 01 10K TL074 RIGHT LO 4 Wl WV 1 6 77 2 013 014 D15 NPO W Of R35 2 4 R53 100K 2200 7 CNJ 470 WV 1SS119 1SS119 1SS119 77 11 5 C12 C16 Cl7 C18 Q8 77 NOTES 15V WV 15V r m T T X T 2SB649A R45 47 R41 UNLESS OTHERWISE SPECIFIED R52 1M 0 1 50 2SC2774 10K 2 ALL RESISTORS ARE IN OHMS I78W 5 4 2 ALL CAPACITORS ARE SOV MLCTYPE 3 THE PARTS MARKED WITH SEE THE F...

Page 239: ... 01 rtf C2 10 25 IC 1 1 2 RV1 I L ft RD11EB2 3 DM211 2000 15 1 RV2 1 D2 SB01640T TO TRANS FORMER O IC2 4 TL074 IP 2000 4 R4 R6 22K Wv 10 11 680 1 4 W R12 220K R10 2200 8 wv VW 9 CNJ403 C2 12 C7 10 25 C1 i L 10 25 J GROUND 14 1 tt 1 13 n IC2 TL074 100pF rr v 15V 2 WV wv R14 R1 10 2200 R8 22K 15V 3 WV 15V R2 10 RTS A 4 RTS B 5 02 03 RD5 1EB2 RD5 1EB2 NOTES UNLESS OTHERWISE SPECIFIED 1 ALL RESISTORS ...

Page 240: ...Main Unit TCC TCC Main Unit S N APR 5002 20001 TO 20300 TCC BOARD 1 619 158 11 Component Side A C B F E D flp 1 4 11 1 619 158 11 9 SOLDER SIDE PATTERN Figure 7 33 TCC Board Layout Early 7 39 ...

Page 241: ...I I T 7 40 ...

Page 242: ...7 Z k HE ft ft ft ft ft ft 9 f Z ZT i Jt v ft ft or 01 R84fft A Si a 3 4 4 5 R7 3 4 k4V 9 4C44 4 C3r C32 R86 ft 1 tR 4 CII5 g 56 Hi ft Ss9 9 ft JW4 ft 4 4 4 R80 m g El R78 JW5 ft 0 09 Ri 4 C4 f i5 c43 9 4 4 a ft 3 ft 4 ft 4 ft ft R79 3 CD 3 D GIDjD tHT C4 C46 74 13I cilw 8 9 ag ici c IC2J ft ft ft J T a S2 ft 7 TH I im a Cl70 CD ft ft ft ft ft ft ft ft 3 ft ft ft a ft ft fi ce C3 3 ft ft ft ft ft ...

Page 243: ...nigner 20701 IS 14 V REF 1 2 A07S28A INPUT M L 1C38 191 NIK 1108 18 RETO SYNC 108 171 IWUT REE w L s 1 ISSpF 4 3 74 E IC8 CPL 5 U 1 5 1 5K SK A6 2 3 6 TL072 1C21 OUT 49 IE A 1591 Q 160 182 180 TUJ72 IC9 7 RS4 V V Y 4 12E ICBBoF AC 1 S2K 1 AC 67 SV 48 R157 Y Rise S 0C212 9 6 l5K 14K q_i2i 10K IC14 4 248E 7 ISV I5K s IC7 183 16 AC WV 2JBC JX 1Z SZ l BY 14 15 X IBBBpf 08 IK 08 TL072 6 7 47 4TM1CPL y ...

Page 244: ...37 Cl38 Cl 44 C13S C129 C13S Cl34 C12S 20 10 10 jlC34C J IC21 151 31 29 10 jTWJ 1 50 ICS 9 1SK 408 i 32 7 nON BIAS 14 TO IC17 iai 6 1IDF1 1SS119 L C73 013 C1S1 NT 154 33 7 14 2 IC21 r si 74K32 7 34 14 CIS 6 74 32 T yiow l 45 147 CHRN N IC24 1280pf 12 IC340 HOFI 3S 7 1 50 14 3 1SS119 11 1IC3S 3 C74 T 01 13 16 36 8 4sa IJ LN318 MON Cft RrtUEO 133 S 9K 37 16 8 016 132 38 7 14 145 i Parts that have De...

Page 245: ...ET 3 R 1S 82 4 NC j LED ROW 6 i E S3 rr j VN101 L C7 w in eLO D13 5 1SS119 R1li 200K METER N CN 226 H 0 01 50 5V LAMP ME E N t 01 RECORD DV M R N 4 2 M 2K3906 L METER GROUND 3 LN28RP M 5V LAMP 4 5V LAMP R 3 5VLAMP 180 02 2N3906 T JMP GROUNO L R 1 5 6K ERASE RECORD OFP N 6 D16 S3 RECORD READY N ERASE OFP N LN28RP R 2 S 6K RECORD OFF N 4 8 06 L KEYBO SCAN 6 Q 1SS119 ERASE OFF N 4 9 KEYBO SCAN 1 10 K...

Page 246: ...n in n n G n x X O pj S IP p u p J OUCJOOOOOA 4 J lfl uJf i Ou 8 l z 9831 31 oo in in 0 XV M IP D X 0 t c i f IP ii IP in O O 8 ri IN i J o in h in 1 4 f5 i D I il 2 o 1 o o C A 812f F 2 On o 5 5 inpi Q 5o 0 5 o nz crio in W H i l d H J 35 5 33S z C l s l QOi pZ J Ptfi do NA 5 M O X 5 jo tIP o r o o IT S S r Z o m o IP r TTTTTTl A IT 00 r c J JO r1 d h O pn F5 IP IP S o li if cr CP 2 S S g O G in ...

Page 247: ... P C NC NC IlFOUT NC EL 13 jo cr I 5v 07 10 12 CK1J 4 I5V D8 TNC 2 NC FFSAUTE RMDON O b 408R 11 on VL 10 J O10 I ilJc fj GlAi V LEFT Dll C12 8 c C SG lOOOfF N 1 PO i DIO J N c iss 14 BIT WR SHIELD CAPSTAN REF CSL ON CSL A 1 SC 2 CSL DO 3 RIGHT 4 T Dll D12 55 DG CklJ TENSION 55 R18 5600 WV 0 5v 4ia VAR SRC CAPSTAN REF 5v LF IC 2 5 dbx 2 150 A FEEDBACK GAIN RV4 lOOVC IT ADDllCdDle Serial NO Pa s tna...

Page 248: ...CR244 C6 100pF PI Hi ft no H zrc4 n to c j 2 illSQMy 2 R15 R13 VW R7 22K 2200 TL074 R3 680 1 4W 15V o wv R5 22K SOLDER SIDE PATTERN WV cw cw 2 C5 3 D1 TC3 S IC1 n 2 I 10 25 3 RD11EB2 DM211 15V 1 RV2 RV1 1 C9 4 2000 2000 O R6 22K R4 680 1 4W 15V WV 11 vvv 10 R10 2200 R12 220K 8 We 9 C1 C2 10 25 10 25 12 C7 100pF 14 X T IC2 3 4 TL074 1 GROUND 13 X IC2 4 4 2200 TL074 R1 10 X R14 o 15 WV WV 2 15V R8 2...

Page 249: ...0 93 3 0 tl 1 0 jHOPE B 33 1 _JRX C 15V vi 1000 C 1 3 312 100 9E0 OG 5C i s 7QQ 96u5 932 C v 4 HC 14 JNLCC 5500 8 Ip 2CD TP 5 DETE 930 20t 934 5 v AN 5600 D r p 8 DLL DIVIDER 4HCI 63 Pi I 4 5 v IX 4 5123 4 NC 4046 4 53 SV 5 v TT3 L _i 4 goo OG j ci jio H r r 1 9X CXull 74i S3 5 vr 4 S 123 74HC 153 4LS123 0 5 v 1 4 Nr 1 4 QQ ENP NC HJoB OTR 4LS 123 13 11 9EF F 3 5 CLp 4 2B 20 NC 203 Lii I 11 9 1 1 ...

Page 250: ...V CSL Power Supply CSL BOARD 1 619 163 12 Component Side 4 SOLDER SIDE rATTERM 619 163 Figure 7 40 CSL Board Layout 7 49 ...

Page 251: ...TP I 2 1 011 SI 1 1 I 1000 R37 18K 1X i nn 4 RS2 1 4V IK IX 13 8200 IX a C20 1P0LY I DG aJV2 15vO 5V 9 16 9 a a R48 3 3K 1000 51 12J IS 4 64 63 JU 07 S4 _14 ii P3 CIO S3Ui I 0G212 I 6 1 4V IX C21 1SS119 S2 4 15V 5 L 010 T 1SS119 S I 7 7 02 OS 1 IC7I RS8 50 4 II r RD5 1EB2 L C23 li I 6 8 R38 47K 1X IC11B f2 2SB649 l_P TL074 R54 1000 IX 06 R66 27K O TP8 1 aTPll IC11R TP a R44 06 6 i IX 74HC132 74HC1...

Page 252: ...UD ruwci oupp iy PDB BOARD 1 619 171 11 Component Side l A B D C ru 1 4 Wl BBC BIOS I 6I9 I7I g 4 HIIMIIIIIII PDB i CNJ9 t 2 1 CHrffiO CMJ9II 1 I 1 l I 3 120V S2 240V R 0e PATTERN 1 old Figure 7 42 PDB Board Layout 7 51 ...

Page 253: ...OLT frND CNJ911 n V AMALOfr frND 12 A NAtQftr frNP 2 ni 15 VOLTS Z u ig VOLTS 18 VOLTS 3 n N C IB VOLTS El 4 i8 VOLTS TO ADM m 5 VOLT AUDIO 5 Ml VOLTS 5 VOLT AUDIO m i AMAlOfr NP 42 ID AUDIO Plfr 6ND 7 ANALOG MD 01 AUDIO PIfr ND 1 CNJ 902 2 4 t H C CHJ 9 2 ANALOfr frND 41 ANALOfr ftND 41 I Z 18 VOLTS 3 ifl VOLTS 4 4 TO ACM CNJ 9o3 S 5 VOLT LAMP LAMP frNP i LAMP frND I 1 5 VOLT LOGIC 42 5 VOLT LOfr...

Page 254: ... 5V 1 2W S R2 LM309K 1N4004 CNJ 14 Q4 960 1 KEY 06 C6 2N3055H RM 2EB2 1 10 R1 Q3 10 J C4 CNJ1 Q3 5W 470Q 1 2W C3 IT015 1uF 50V 25 LM2940CT 5 0 0 1 G R4 D7 MT2 50 30D4 R7 47Q RD6 2EB2 1SS119 01 1 2W JLC4 07 L IL C3 C2 Tl 50 MJE 205 G MT1 47n 1 2W MT2 1N4004 Q1 2J1 1 4W R5 f 10 25 47Q 06 05 2N3906 0 1 50 SR MT1 1 2W R2 1K 4 1N4004 IT015 03 4 i 1N4004 R1 2A MT2 1 2W 1800 1 4W G R3 470 1 2W p C2 csT C...

Page 255: ...TO 14Y CAPS TO CNJ 903 5 TO CNJ 903 8 5V LOGIC 4 3 14VQLTS 2 14Y0LTS 5V LOGIC D7 CNJ 961 w TO CNJ 903 4 TO CNJ 903 3 TO 14Y CAPS 5V AUDIO F3 4A R5 0 22 5V 86 3 5V LAMP VvV o 4 2 14V0LTS 85 F4 4A 1 D2 D4 D8 H W w 4 Wv R6 10 R3 0 22 5Y 4 Wv 4 FI 4A 82 84 87 4 it R4 D6 F2 2A L Cf j 4 Q uPC 7805H LM 2940 K 4 Wr 0 47 2Y o o J O 81 CO i o es j ic r o CM T oT T a a in in ID m CO o Q T t ID U CO 6 tD CD C...

Page 256: ...02 0 32 18V IN4M4 A 4 33 FI 5 FI 5 W R 12 0 33Q SW 07 l is vats cr jy 32V N L CAP 32V 3 A KEY R 4 2 04 1N4004 1 V 10 2N3055M 32V 2 W 32V N L CAP 32V 1 CNJ 02 P3 1Q SW 962 ClM 2 LM337K 0 03 s 022 53 3004 01 R5 2N3904 C1 47Q 1 2 WM V 1N4C04 0 1 50 R 1 M a 390Q jk 1 4 W PR5534S Ml CM IT01S C11 aI M R 47Q C4 1 2W 4 71 50 F2 r j A ALL UNREGULATED VOLTAGE LINES ARE REFERENCED NO LOAD N L 4 i f RGC and R...

Page 257: ... rvp t VA f 94 F5 5A cT j 0 27 4V 912 uPC7915H TO 36V CAPS TO 36V CAPS 9 36V0LTS VA I 91 8 36V0LTS 8 911 8 cu F2 4A i R2 5 7 24V0LTS CDC QZ 93 15 013 TO CNJ902 cu 4 6 24VQLTS iSr o QZ 913 9 5 ID uPC7918H 8 15V0LTS H 4 ctz T T CD TO CMJ902 ID T _ Tl t OZ az DU 7 15V0LTS 3 ID 8 cn ID ID JC 8 Q O 2 V FAN 8 o i 8 11 s LDTI GROUND 1 cu CO PT 4 o 2 2 O 1 TU ID 8 a O O o a D16 D9 R20 680 H H VA R16 910 R...

Page 258: ... 2 4 5V LOGIC1 4 14V UN REG 4 14V UN REG T5V _OGIC 2 4l 4 RGA 3 L D 2 2 P I 7 f 5 4 3 _0G INv 2 _9J T 8 czb 3i 4 2 A 2 i2 bJ LOG 2 _CS GN 45V REGULATOR 5 L D 2 fC ib 2 3 5 1 1 CN7 463 LOO GND 2 LOQ 2 LAMP GNO 4 24V 24VGNE 415V 4 6 CNP960 CNJ360 5V LOG 1 14V UNPEG i 5 SV AOSLO 6 6 71 3 5 7 5h ID CS TO 14V FILTER CAP TO TIB 2 415V 45V 41 L 8 i4 4 3 c I I 9 15V 5V LAMP 15V GND _6J AUDIO 7 CNJ 9O0 AMP...

Page 259: ...e D 2 Sk 2 tsv 3aJ RG 1 1 3 3 h91 9 LOS GN 2 5V LOG 2 LOG ND 1 LOG 1 9 czb 2 4 4 8 c o 2 L5V REGULATOR LGk 2 5 PDI 3 1 5 CNJ910 j i I 1 FP 45V LOG 1 i 6 S b I 4KV UNREG i 5 c o 1Bd fL 5 2 2 LOO 424V 24VGNB 415V 15V 1FVSNB 424V 2 1 2 6 4 CUT 463 E GNi 2 Loa 2 24VSNP 1 MP 15V CUP960 2 7 3 3 7 5 4 Lm TO TIB 2 415V T5V 75V SNR 6 4 5 8 6 fSV AU9L0 4 45V LAMP i 3 c I MP 3 7 7 9 5 8 r3 GM CNJ 90G LAMP LN...

Page 260: ...s the four regulator board arrangement These are the RGA RGB RGC and RGD 8 1 1 Power Supply Sub Chassis for Early APR 5000 Units The Power Supply Sub Chassis for the early model contains the transformer rectifiers and filter capacitors for all supply voltages in the APR 5000 The input voltage line voltage is fed to the transformer T1 whereby either 120V or 240V line selection is made and LOW or HI...

Page 261: ...her internal or external to the RGA Under normal operating conditions the bias of D2 emitter of Q1 to the base of Q1 R2 and D3 is such that Q1 is turned off thus no current flow through diode D1 If an over voltage condition would exist the bias of Q1 would change thus increasing the VBE on Q1 causing LED D1 to 1 ight change in bias on the gate and its network of D7 R5 and R6 In addition the triac ...

Page 262: ... occur the triac Q3 will conduct This is caused by changing the bias on the gate of Q3 This threshold is set by the combination of D2 R3 and R6 In the over voltage condition Q3 conducts This provides a reverse bias on D1 causing the conduction of Q1 to decrease or stop Capacitors Cl and C2 are for high and low frequency decoupling ground negative voltage this will cause diode D3 and D4 to conduct ...

Page 263: ...output Q1 is part of an indicator circuit showing a short circuit condition within the RGC Board conditions the base of D2 emitter of Q1 to the base of Q1 R3 and D3 is such that Q1 is turned off thus no current flow through D1 Under normal operating If an over voltage condition would exist the bias of Q1 would change thus increasing the VBE potential on Q1 causing the indicator LED D1 to illuminat...

Page 264: ...s fed directly to the input of the 3 terminal regulators 15V Thus in the event of reverse voltage or overvoltage the series fed supply will be lost A fuse is also incorporated for the power supply rail and this is mounted on the PC board 8 2 New Power Supply Unit u The TPS unit which contains the RG 1 and RG 2 regulator boards is the new model 8 2 1 Power Distribution Board The Power Distribution ...

Page 265: ...all The RG 1 board supllies the following voltages to the APR unit 5V Logic 1 5V Logic 2 5V Audio 5V Lamp Regulator 2 RG 2 Board 8 2 3 The Regulator 2 board has been developed to replace the RG C and RG D boards APR 5002 and APR 5003 5003V machines as shown below This design change is effective on all APR 5002 Serial 20701 and Higher APR 5003 Serial 20901 and Higher The RG 2 board supllies the fol...

Page 266: ...ieved much as a film camera takes a series of individual photographs and produces a motion picture The input to an A D converter stage is normally a sample and hold circuit A D A D Converter Active Combining Network A summing amplifier used to combine multiple signal inputs into a single composite signal 1 ine ACN ACM In an APR 5000 Series recorder the acronym for the Audio Control Motherboard ADM...

Page 267: ... sample clock arrives and the actual voltage held by the s h Aperture Error This is the time between the arrival of the sampling clock to the sample and hold circuit to when the voltage at the s h input is held Aperture Time A method of routing audio signals to a specific signal path Usually this is done by way of a switch which indicates the signal path which will be activated Assign A descriptio...

Page 268: ... sound waves providing acoustic isolation called a gobo or splay Also Balance The relative levels between two audio sources The stereo balance generally implies the left and right signal level comparison A BALANCE control circuit has two inputs and two outputs never introducing signals from one circuit to the other A common example is the BALANCE control found on the typical consumer stereo produc...

Page 269: ...es are part of the complete synchronizing signal monitors to turn off the beam as it retraces to start another line of the camera or screen It is used by TV cameras and The process of mixing tracks on a multi track tape and recording them on an unused track operation Bouncing Tracks Also called Dump An intermediate isolation stage between a signal source and its destination buffer presents a const...

Page 270: ... In an APR 5000 or an APR 24 Series recorder the acronym for the Capstan Servo Loop Board CSL CTM In an APR 5000 Series recorder the acronym for the VU Meter Controller Board u Channel A group of circuits and controls associated with the I O Module used to feed an audio signal to a track of the Multi track recorder Channel Bus A summing bus which carries all of the signals to be fed to the Multi t...

Page 271: ...rs This module The Complex Waveform A waveform which has more than one frequency component This is a pseudo video signal which contains the multiplexed HDM 1 encoded digital audio data includes error correction codes interleaving and synchronization characters and the blanking and synchronization signals This is very similar to monochrome composite video signals Composite Digital This describes th...

Page 272: ...ng DSP D A Converter Digital to Analog Converter used to convert digital data to an analog voltage This is Dead A room recording or microphone placement which has little or no reverberation u Decay The portion of a note or envelope in which the signal deteriorates from full level to a low or mid range level decay time or reverberation time also called RT60 is the time it takes the reverberator out...

Page 273: ...s This ability is measured as the common mode rejection ratio A balanced audio output This provides two output signal lines and commonly a ground reference used for the shield wire of the typical audio cable The two signal lines are inverted with respect to each other The signal level of the difference between these two signal lines is at line level which is somewhere between 20dB and 8dB typicall...

Page 274: ...not present on the input generally causing poor sound quality and derived from improper matching signal overload or poor wiring connections Dither A low level white noise signal added at the A D converter stage used to randomize the effects of quantization error and quantization noise domain this analog input signal domain this is done by randomizing the LSB synchronized to the conversion eye 1 e ...

Page 275: ...pe songs of aproject or for joining the best takes of a song Electronic Editing This is done for assembling the The presence of static electricity or the force field between Interference two conductors charged with static electricity in a signal conductor causing hum distortion and or excessive noise Electrostatic Emphasis is an audio conditioning circuit which in incorporated into the analog sect...

Page 276: ...output to another system Feed Feedback The return of some portion of the output signal to the system s input Filter A circuit which sharply attenuates signals above low pass or high cut or below high pass or low cut frequency These are used to reduce unwanted noise such as hiss or rumble Float To disconnect from ground i e a floating output has no ground reference Floating Point This is a method o...

Page 277: ...fication or increase of the signal 1eve1 Gain The practice of manually adjusting the gain in a signal path resulting in an altered dynamic range Gain Riding An analog copy of a tape An analog copy of the master tape is a first generation copy Each analog copy of a copy is reduced by a generation and results in generation loss which is a degradation of sound quality Generation A movable partition u...

Page 278: ...z High Pass Filter An audio filter used to attenuate low frequency components of the signal without affecting the mid and high frequency components reduce rumble and hum in an analog signal Also used to Hiss A noise which contained all frequencies but is more predominant at the high end Hiss sounds like wind blowing or like the sibilance in the word hiss Horizontal Resolution of a CRT The horizont...

Page 279: ...ving The process of placing data in a different sequence in the event of a burst error where several sequential data words from the storage device are lost the missing data will interdispersed within the data stream when the data is placed in the original sequence de inter 1 eaved This is done so that o A method of recreating missing data by adding the sample values before and after the missing va...

Page 280: ...r to determine the direction of a real sound source or a stiereo image f Indicates a fully synchronized system lift the case of video equipment this indicates that the drums are locked to their common reference or sync signal In the case of audio recorders this indicates that they are synchronized by way of signals recorded on the tape and the playback of these signals are in sync The synchronizin...

Page 281: ... the left and right components of a stereo signal Mono Mix A D A converter measurement of accuracy If the digital input increases but the output remains constant the D A converter is monotonic related to the differential linearity error Monotonicity This is also A tape recorder with multiple tracks usually 8 16 or 24 channels Multi track Disconnection of the audio source Mute Any unwanted audible ...

Page 282: ...the Nyquist rate Fs is called the Nyquist frequency Nyquist Frequency Nyquist Rate Pan Panning is the process used to shift the apparent left right position or image or a sound source the film industry terminology This originates from panorama Pilot Tone A very stable signal used as a reference for synchronization of electronic equipment This signal is either a squarewave or sinewave at a frequenc...

Page 283: ...each digitized value represents a range of analog voltages and is a function of the number of bits used to describe the analog voltage The quantization noise is the effect of quantization error noticeable for low level signals than for high level signals which implies a signal to quantization noise ratio for any sampling system Quantization Noise It is more In an APR 5000 Series recorder the acron...

Page 284: ...may contain transient switching noise for a short period of time as it changes state settling time during this time the output is relatively unstable and unuseful For This is called the Signal to Noise A commonly used term to describe the difference between the typical operating audio signal level and the fixed noise floor s n ratio of a given piece of audio equipment Generally this measurement is...

Page 285: ... be changed Examples of special effects devices are phasors flangers chorus doublers octavers etc Special Effects A device which displays the distribution of frequencies The range of an audio frequency spectrum analyzer is 20Hz to 20kHz Spectrum Analyzer The process of cutting and splicing magnetic tape in order to delete unwanted material insert leader tape between songs or to rearrange recorded ...

Page 286: ...N and the reference is increased to the halfway point between the maximum and the previous reference level in this case the median voltage is lower than the reference a bit is turned OFF and the reference is decreased to the halfway point between the minimum level and the previous reference level until all bits have been set If the voltage If the u This process continues Suppress To mute or attenu...

Page 287: ...operating level range In an APR 5000 or an APR 24 Series recorder the acronym for the Transport Interface Board TIB In an APR 5000 or an APR 24 Series recorder the acronym for the Tape Tachometer Sensor Board TTS An operational mode which allows the console operator to talk directly to the studio loudspeakers or to headphones Ta1kback A self clocking signal used to provide timing reference to magn...

Page 288: ...ution of a CRT The vertical resolution of a TV monitor is defined by the number of lines that are electronically generated Walsh Radiator A type of speaker driver invented by Lincoln Walsh in which a gently sloping cone moving up and down so displaces the air with its sloped sides as to radiate a cylindrical wavefront in a 360 degree horizontal circle Waveshape A graph of a wave as a function of t...

Page 289: ......

Page 290: ... connected to either one of the VIDEO ports on the rear panel and the TERMINATION switch must be set as follows a Where the APR 5003V is the video reference terminating link the switch must be set to ON b Where the video reference is daisy chained to another device the switch must be set to OFF 3 Storage Location 37 must be set to 1 thereby selecting video as the resolving reference The correct ta...

Page 291: ... BVE 900 Setup menu as follows Mixer Block Reassignment The Mixer Block Setup identifies for the editor the interconnections between mixer inputs and player outputs i e which input channels of the mixer are connected with which output signals of the players In this applica tion the user will simply exchange the identities of the audio and video sources so that the editor controls the ATR Folder as...

Page 292: ...Match Frame ATR in Thndem roll with From or Tb Machine In this example the PI VTR is the video source whose sync sound is located on the P3 ATR A match frame transition effect from PI to P2 or from P2 to PI would be programmed in the customary man ner with the additional requirement that a tandem roll with the ATR be invoked by means of the asterisk selection It is important to ensure that Pi s mi...

Page 293: ...ic manner through the use of the DMC RANGE setup window Under certain conditions the rapid rotation of the supply reel cannot be decelerated at the rate commanded by the Editor and it is possible for the user to switch between STOP a fast VARI SCAN speed and the normal PLAY speed in a sequence so rapid as to prevent the APR 5003V from performing in a manner befitting its excellent tape handling ch...

Page 294: ...100 00000110 00000001 03 04 04 06 06 Byte 6 Byte 7 01 01 00001011 00000111 00001011 00001010 00000110 00001010 0A 0B 06 07 0B 0A Byte 8 00111111 00010101 3F 3F 00111111 00010101 15 15 10111111 10010101 BF BF 10111111 10010101 95 95 VTR BLOCK 2 SETUP MENU NTSC Settings oooiim IF PAL settings 00011010 Byte 1 Byte 2 TC Read Delay Start Delay For 30 ips For 7 5 and 15 ips After Sync Delay After Sync D...

Page 295: ......

Page 296: ...en recorded on one tape source it can be used for locating synchronising and editing purposes with other time code sources C l It provides time based C 1 1 Time Code Types and Formats There are two types of time code Longitudal Time Code LTC and Vertical Interval Time Code VITC LTC is recorded on audio or video tape on a separate audio track and contains 80 bits of information per time code word W...

Page 297: ...ance with NTSC standards color television FILM is used for motion pictures made at a rate of 24 Fr s C 1 2 SMPTE DF The APR 5003V records SMPTE NDF and SMPTE DF time code at a frequency of 2400 bits per second 80 bits LTC x 30 Fr s However in order to accommodate the slightly less than 30 Fr s color videotape frame rate of 29 97 two frames are dropped from the SMPTE DF data stream each minute with...

Page 298: ...sent the numbers 1 and 2 respectively of the Frames Units count adding them together produces a Frames count of a 1 and a 2 The Frames Tens count shows bit 09 being toggled This will yield a value of 20 Hence as shown in Figure C 3 the Frames Units code is calculated by the following formu1a In this example bits 1 and 2 of the Frames Units count in the center of the bit clock 1 2 2 0 23rd Frame Co...

Page 299: ...4 40 47th MINUTE Figure 03 LTC Word Bit Assignments The time code word also has several other bits and groups of bits within the data stream for other encoding purposes n Eight groups of four User Bits are interspersed between the various time code counter bits The User Bits are all set to 0 and are available for whatever auxiliary encoding that the user might want to assign to them It should be n...

Page 300: ...its bit 35 is the Field Mark Bit which allows VITC readers to index each video field and in place of the sixteen bit Sync Word found at the end of the LTC word VITC has an eight bit Cyclic Redundancy Check CRC error detection code at the end of each word The comparison of LTC code to VITC code is illustrated in Figure C 4 u C 5 u ...

Page 301: ... FOURTH BINARY GROUP 30 38 31 39 SYNC BIT SYNC BIT 40 T r 0 41 32 42 1 1 2 33 2 43 UNITS OF MINUTES 34 4 44 4 8 35 45 8 36 46 37 47 FIFTH BINARY GROUP 38 48 39 49 SYNC BIT SYNC BIT SO T 51 0 40 10 1 0 52 20 20 TENS OF MINUTES 4 I 53 40 42 54 40 43 UNASSIGNED AOORESS BIT 55 44 56 45 57 SIXTH BINARY GROUP 46 58 47 59 1 O SYNC BIT SYNC BIT 60 1 61 Q 48 1 62 1 2 49 2 63 UNITS OF HOURS 50 4 64 4 8 51 8...

Page 302: ...3202 models Series uses only one speaker this jumper is removed When installed this jumper will direct the RIGHT AUDIO RETURN from the headphone connector CNJ 221 to the right side speaker mounted in the Meter Bridge Normally IN on the APR 5000 Series this jumper connects the LEFT AUDIO RETURN from the headphone connector CNJ 221 to the right side speaker mounted in the Meter Bridge When this boar...

Page 303: ...his command line is directed to the FEX board for switching control of the FEX relay for channel n command will switch the relay on the FEX board to either feed record drive signal to the head or receive playback signal from the head JW 5 Normally OUT on the APR 5000 Series this jumper when installed connects the REC ON N REC ON signal output collector pin of Q8 to the edge connector pin 34B that ...

Page 304: ...2 output driver IC16A pin 3 a 26LS31 to the LTC OUT connector on the rear panel is used JU 2 MUST be installed If this jumper JU 5 Normally OUT on the APR 5000 Series this jumper used in the PCM 3102 3202 machines only connects the ANA REC READY line from pin 12 of IC6 74LS373 Octal D type flip flop w output enable to pin 7 of the 50 pin parallel port of a PCM 3102 3202 jumper is ONLY installed on...

Page 305: ...driver IC16A pin 2 a 26LS31 to the LTC OUT connector on the rear panel jumper is used JU 4 MUST be installed JU 3 Normally IN on the APR 5000 Series this jumper used in conjunction with JU 1 connects the Low side of the DLO Differential Line Output hybrid IC14 to the LTC OUT connector on the rear panel is used JU 1 MUST be installed JU 4 Normally OUT on the APR 5000 Series this jumper used in conj...

Page 306: ...y ICs JW 3 and JW 4 are mutually exclusive JW 4 Normally OUT on the APR 5000 Series this jumper is installed when the RAM chips to be used are 2K X 8 bit Read Write memory ICs JW 3 and JW 4 are mutually exclusive D 1 8 CTM Board There are no jumpers or switches located on this board D 1 9 DSP Board There are no jumpers or switches located on this board D 1 10 FEX Board There are no jumpers or swit...

Page 307: ...ROM chip is used standard configuration of present APR machines uses a 128K ROM with software revision PI 01 01 03 JW 3 Normally IN on the APR 5000 Series machines this jumper is installed when a 2K X 8K SRAM Static Random Access Memory chip is used mutually exclusive JW 3 and JW 4 are JW 4 Normally OUT on the APR 5000 Series machines installed when an 8K X 8K SRAM Static JW 3 and JW 4 are this ju...

Page 308: ... are no jumpers or switches located on this board D 1 20 TCC Board For these descriptions refer to Figure 7 35A and 7 35B on pages 7 42 and 7 43 of this manual u JW l Normally OUT on the APR 5000 Series this jumper serves no real purpose in the TCC card since there is not a Reproduce head used JW 2 Normally IN on the APR 5000 Series this jumper connects the BIAS signal output pin 8 of K2 to the ed...

Page 309: ...from the video port BNC connector on the rear panel the configuration shipped from the factory JU 2 Normally OUT on the APR 5003V Series this jumper is installed when a sinewave or squarewave pilot tone signal is to be input from the video port BNC connector on the rear panel This is n D 1 25 CSL Board For these descriptions refer to Figure 7 41 on page 7 50 of this manual the APR 5000 machines an...

Page 310: ...h is crucial to the performance Refer to Figure 2 1 page 2 2 of of the APR 5000 unit this manual S2 The setting of this switch is crucial to the performance of the APR 5000 unit Refer to Figure 2 1 page 2 2 of this manual D 1 27 Power Supply Regulator Boards RGA RGB RGC RGB RG1 RG2 There are no jumpers or switches located on this board r D 9 u ...

Page 311: ...r o f V f l L J r k 1 t t y J t 5 i i x t i y t i P r f i 5 jr v 4 C 1 T J V 4 t A a i i ...

Page 312: ...Baud Rate Selection Disable Video Ibne referenced operation Not Assigned Not Assigned Not Assigned Not Assigned Reserved Sl 2 Sl 3 SI 4 Sl 5 Sl 6 Sl 7 Sl 8 The facility provided by Sl 3 is for use with those APR 5003 models manufactured before the introduction of the APR 5003V which have been upgraded to accept APR 5003Vsoftware This upgrade does not offer video or tone facilities all synchronous ...

Page 313: ...iL xit 2 TF I v C J J i 7 5f iff A 4 i n JA V t i u WU l I f 1 v ft Jnm Bii M C n i r uu c rft it I j i r i i r f t J 1 I 0 MViv i V J r c f cugT J V r Vij i T i i t J r TT i t J J 9 t u vT k 1 I f w _ n r 1 T 1 J 4 V H U S it srH S t 4 v O uyx H i n vC r i r v v r r X M t V ...

Page 314: ...this can result in skewing of the tape away from the center of the head The head height adjustment is checked when the tape is not centered on the head surface NOTE Thisadjusts the height of the front of the head only 1 U Observe the tape movement across the heads The tape should be centered between the twogrooves which are machined into the surface of the head when checking the repro or sync head...

Page 315: ...by pulling ii Ward V STEP 3 Visually inspect the heads by holding the headstack up to a source of light and ap plying the zenith block between the left tape guide and the erase head Hold the block firmly on the tape guide arjd pivot th block so that it is lightly touchingthe erasl head Looking through the tapeTgUide the zenith error of the erase head Will become visible If no light is visible betw...

Page 316: ... FVO J V G r i y T i 1 u i 3 r i jt j ttyt bv i 00 r1ft J l HI r r v un _ f M i i V tf xv t f r r r Figure 6 14 Erase Head Zenith F 3 v oVb n ...

Page 317: ...pe is on the take up ree 1 U 7 i i 1 1 1 i fci arid touchthe MVC knob to enter the SPOOL WIND mide STEP 5 Observe the t P J 3thover the timer roller The tape should ride injhe center of the guide and _0JB scraping no fe should be detectable Make sure that the tape rides smoothly over the guide bjfVisual inspec tion refer to Figure 6 24 Thpe Path STEP 4 Press REW Adjust the spring assembly by plate...

Page 318: ... hd rc adjust if it is incorrect 311110 P V i 1 r A V 1 T7T ii 5 it COLLAR SET SCREW j r i1 T V v s k J tv PLATE v y i J J I 4 l r 4 igura 6 25 Roller Guide Height Adjustment r i r f v r Ji i v STEP i2v Press i 1 o M and remove the roller guide alignment tool Replace the roller guide STOP 4 1 1 i i f v cap V4 imaPB Press o t I ancf then touch the MVC REW a w jj 1 j knob SPOOL WIND v Observe the ta...

Page 319: ......

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