JVC HR-XV11EX Service Manual Download Page 7

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3-1

SECTION 3

ELECTRICAL

CONTENTS

OVERALL BLOCK DIAGRAM

.............................3-2

VCR PART

ELECTRICAL ADJUSTMENT

PROCEDURES

..........................................................3-3

ELECTRICAL TROUBLESHOOTING

GUIDE

...........................................................................3-4

1. POWER(SMPS) CIRCUIT .......................................3-4

2. SYSTEM/KEY CIRCUIT ..........................................3-7

3. SERVO CIRCUIT.....................................................3-8

4. Y/C CIRCUIT..........................................................3-11

5. Hi-Fi CIRCUIT .......................................................3-15

6. Tuner/IF CIRCUIT .................................................3-18

BLOCK DIAGRAMS

..............................................3-20

1. Power(SMPS) BLOCK DIAGRAM .......................3-20

2. Tu/IF, NICAM & A2 BLOCK DIAGRAM................3-22

3. VPS BLOCK DIAGRAM........................................3-23

4. Y/C BLOCK DIAGRAM .........................................3-24

5. Hi-Fi BLOCK DIAGRAM .......................................3-26

6. SYSTEM BLOCK DIAGRAM ................................3-28

CIRCUIT DIAGRAMS

............................................3-30

1. Power(SMPS) CIRCUIT DIAGRAM......................3-30

2. TU/IF, NICAM & A2 CIRCUIT DIAGRAM .............3-32

3. A/V CIRCUIT DIAGRAM .......................................3-34

4. Hi-Fi CIRCUIT DIAGRAM .....................................3-36

5. SCART(JACK) CIRCUIT DIAGRAM ....................3-38

6. SYSTEM CIRCUIT DIAGRAM ..............................3-40

• WAVEFORM & VOLTAGE SHEET .........................3-42

• CIRCUIT VOLTAGE CHART...................................3-44

PRINTED CIRCUIT DIAGRAMS

.......................3-48

1. MAIN P.C.BOARD .................................................3-48

2. SMPS P.C.BOARD ...............................................3-50

DVD PART

ELECTRICAL TROUBLESHOOTING

GUIDE & WAVEFORMS

.......................................3-52

1. System Clock X501 (27Mhz) ...............................3-52

2. Initializing between MPEG and SDRAM ............3-52

3. Initializing between MPEG and Flash ................3-53

4. Reference Voltage 1.............................................3-53

5. Reference Voltage 2.............................................3-54

6. Checking the initial step of M/D Ass’y...............3-54

7. Checking the Video Signal..................................3-55

8. Checking the first step of servo (1) ...................3-55

9. Checking the second step of servo (2) .............3-56

10. Checking the output of Audio signal ...............3-56

11. Checking the reset port.....................................3-57

12. Checking the focus & tracking servo ..............3-57

13. Checking the track jump ...................................3-58

14. The status of CD_LD and DVD_LD in the

PLAY MODE ........................................................3-58

15. The status Focus and spindle motor...............3-59

16. DATA STREAM ...................................................3-59

17. Input Clock to IC202 ..........................................3-60

18. Tray Open and Close .........................................3-60

19. Focus Drive signal(FACT) .................................3-61

20. Signals for Front micom ...................................3-61

21. FACT and FE for DVD9 (Dual disc) ..................3-62

22. System clock of MPEG IC .................................3-62

BLOCK DIAGRAMS

..............................................3-63

1. DVD Overall Block Diagram................................3-63

2. SERVO Block Diagram ........................................3-64

3. MPEG Block Diagram ..........................................3-65

4. AUDIO Block Diagram .........................................3-66

CIRCUIT DIAGRAMS

............................................3-67

1. RD SERVO CIRCUIT DIAGRAM ..........................3-67

2. SYSTEM CIRCUIT DIAGRAM ..............................3-69

3. AUDIO CIRCUIT DIAGRAM..................................3-71

4. INTERFACE CIRCUIT DIAGRAM.........................3-73

• CIRCUIT VOLTAGE CHART...................................3-75

PRINTED CIRCUIT DIAGRAMS

.......................3-79

1. MAIN P.C.BOARD (TOP VIEW) ............................3-79

2. MAIN P.C.BOARD (BOTTOM VIEW)....................3-81

Summary of Contents for HR-XV11EX

Page 1: ...T Y 1 0 V p p 75 negative sync RCA jack x 1 Pb Pr 0 7 V p p 75 RCA jack x 2 Audio output digital audio 0 5 V p p 75 Ω Ω RCA jack x 1 Audio output optical audio 5 V p p 75 Optical connector x 1 Audio output analog audio 2 0 Vrms 1 kHz 0 dB 330 RCA jack L R x 2 SCART TO TV Outputs VCR Audi 6 0dBm less than 1 kohms SCART Video 1 0Vp p 75 ohms unbalanced SCART Design and specifications are subject to ...

Page 2: ...CONTENTS SECTION 1 SUMMARY SECTION 3 ELECTRICAL SECTION 4 MECHANISM OF VCR PART SECTION 5 MECHANISM OF DVD PART SECTION 6 REPLACEMENT PARTS LIST ...

Page 3: ...SECTION 1 SUMMARY CONTENTS Important Safety Precautions SPECIFICATIONS 1 5 ...

Page 4: ...e specified for compliance with recognized codes pertaining to X ray emission Consequently when servicing these products replace the cath ode ray tubes and other parts with only the specified parts Under no circumstances attempt to modify these circuits Unauthorized modification can increase the high voltage value and cause X ray emission from the cathode ray tube 12 Crimp type wire connector In s...

Page 5: ...eter to measure across both terminals of load Z See figure 9 and following table 2 5 Grounding Class 1 model only Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts Video in Video out Audio in Audio out or Fixing screw etc Measuring Method Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts See figure ...

Page 6: ... PEAK EIAJ Operations Temperature 5 C 41 F to 35 C 95 F Operation status Horizontal OUTPUTS Video outputs 0V p p 75Ω negative sync RCA jack x 1 SCART TO TV S video outputs 1 Y 1 0V p p 75Ω negative sync Mini DIN 4 pin x 1 C 0 3V p p 75Ω Component video output Y 1 0 V p p 75 Ω negative sync RCA jack x 1 Pb Pr 0 7 V p p 75 Ω Audio output digital audio 0 5V p p 75Ω RCA jack X 1 SCART TO TV Audio outp...

Page 7: ... SDRAM 3 52 3 Initializing between MPEG and Flash 3 53 4 Reference Voltage 1 3 53 5 Reference Voltage 2 3 54 6 Checking the initial step of M D Ass y 3 54 7 Checking the Video Signal 3 55 8 Checking the first step of servo 1 3 55 9 Checking the second step of servo 2 3 56 10 Checking the output of Audio signal 3 56 11 Checking the reset port 3 57 12 Checking the focus tracking servo 3 57 13 Checki...

Page 8: ...heck the distance time dif ference which is from the selected A B Head point of the H SW signal to the starting point of the ver tical synchronized signal to 6 5H 0 5H 412µs 1H 63µs PG Adjustment Method a 1 Payback the SP standard tape b 2 Press the 1 key on the Remote controller and the PLAY key on the Front Panel at the same time then it goes into Tracking initial mode c 3 Repeat the above step ...

Page 9: ...s there about 2 5V at the IC103 Vref Check the Main PCB 5 3VA 5 0V Line short 1 No 5 3VA SYS TUNER NO 12VA Check or Replace the D110 Is the Vcc 13V supplied to terminal in D115 Check or Replace the Motor Vcc Is the Vcc 12V supplied to terminal in D115 NO NO Replace the D115 YES YES YES 2 No 12VA TO CAP DRUM MOTOR NO 5 0VA 5 3VA Line Check Is 5 3VA put into the Q160 Emitter Is about 5V put into the...

Page 10: ...62 R157 R158 R159 D121 YES YES YES YES Check or Replace the Q162 Q160 4 No 5V TO DVD No 33V Check the Power Control Is Q162 Base H Check or Replace Q161 R154 R155 NO YES YES 5 No 33V TUNER No REG 12V Check or Replace D110 Is 13V put into the Q156 Collector Is 13V put into the R153 Base NO Check 33V Line NO YES YES Check or Replace the Q156 ZD103 R153 C151 YES 6 No REG 12V ...

Page 11: ...62 R157 R158 R159 D121 YES YES YES YES Check or Replace the Q162 Q160 4 No 5V TO DVD No 33V Check the Power Control Is Q162 Base H Check or Replace Q161 R154 R155 NO YES YES 5 No 33V TUNER No REG 12V Check or Replace D110 Is 13V put into the Q156 Collector Is 13V put into the R153 Base NO Check 33V Line NO YES YES Check or Replace the Q156 ZD103 R153 C151 YES 6 No REG 12V ...

Page 12: ... to IC151 Pin1 NO NO Check or Replace the D114 NO Check the Power Control YES YES YES Check or Replace IC151 R170 C154 YES 7 No 8V TO DVD NO 3 3V Is Vcc 4V supplied to IC152 Pin1 YES Is the Q162 Base H YES Check or Replace IC152 R156 C153 YES 8 No 3 3V TO DVD Check or Replace the D111 NO NO Check the Power Control ...

Page 13: ... Refer to SMPS 5 3VA troubleshooting Check the IC501 Pins68 69 70 71 Do T UP Reel Pulses appear at the Q514 Base terminal Replace the T UP Reel Sensor RS501 Check the CST SW and the peripheral circuitry Replace the IC501 The unstable loading of a Cassette tape Does the H signal appear at the IC501 Pin30 during inserting the CST Does the L signal appear at the IC501 Pin72 during inserting the CST C...

Page 14: ...e Drum Motor doesn t run Do the DFG Pulses appear at the PMC01 Pin11 Replace the Cap M Aren t the foil patterns and the Components between IC501 Pin104 and PMC01 Pin11 short Replace the IC501 Refer to 2 No 12VA of Power section Do the Drum PWM Pulses appear at the IC501 Pin107 Aren t the foil patterns and the Components between IC501 Pin107 and PMC01 Pin12 short Do the DFG Pulses appear at the IC5...

Page 15: ...C501 Pin108 and PMC01 Pin9 short Does the CFG signal come into the IC501 Pin9 Aren t the foil patterns and Components between IC501 Pin108 and PMC01 Pin9 short 3 When the Capstan Motor doesn t run NO NO NO YES YES YES When the Capstan Motor doesn t run Does 12VA appear at the PMC01 YES Replace the IC501 YES NO NO YES Refer to SMPS CAPSTAN 12Volt Trouble Shooting Aren t the foil patterns and compon...

Page 16: ... KEY doesn t working KEY doesn t working Is 5V applied to the IC501 Pin36 Does LED or FLD change when a function button is pressed Refer to SMPS 5 3VA Trouble Shooting Replace the defective switches YES NO NO ...

Page 17: ...eo signal appear at the Emitter termi nal of the Q805 Check the 5 2VT 5 3VA Line Power Circuit Is I2 C BUS signal applied to the IC301 Pins73 74 Check C327 AGC Chck the path of the signal between the IC301 Pin29 and IC501 Pin17 Replace the IC301 Does the 12VT 5 4VA appear at the Emitter termi nal of the Q805 Replace the Q805 Check the 12VT 5 4VA Line Power Circuit Check the System Circuit Refer to...

Page 18: ... the System Circuit IC501 Pin105 Check the V H S W level Check R335 Replace the IC301 Refer to SYSTEM I2 C BUS CHECK Trouble Shooting Is the V H S W signal applied to the IC301 Pin80 Is V H S W H about 3 4V at the IC301 Pin80 Clean the Drum Check the path of the Y Luminance RF signal Check C337 C340 Does the Y Luminance RF signal appear at the IC301 Pin9 Is the Y Luminance Video waveform showed up...

Page 19: ... IC301 Pins22 47 60 84 Check the line of the 5 2VT 5 3VA Line Power Circuit Replace the X301 Check the Color Pass Does the X301 4 43MHZ oscillate Replace the IC301 Does the Color signal appear at the IC301 Pin55 Replace the IC301 NO YES YES NO NO NO YES Does the Color signal appear at the IC301 Pin57 ...

Page 20: ...76 Check EE Mode Check the System of REC H the IC501 Pin47 Replace the IC301 Check the line of the 5 2VT 5 3VA Line Power Circuit Check PB Mode Is the REC H signal about 4V applied to the IC301 Pin80 Check REC Luminance Pass Color Pass Does PB Mdoe operate normally Does the REC RF signal appear at the IC301 Pins80 90 Check the Drum Drum Connector YES YES YES YES YES NO NO NO NO NO YES YES ...

Page 21: ...40 IC803 Pin13 YES Check the IIC Clock and DATA at IC801 Pins42 43 YES Check the Audio of IC801 Pins16 17 YES Check the Audio of IC803 Pins3 5 YES Check the JK902 Check the IC751 Pins30 31 NO Check the DVD MODULE PMD02 Pins13 15 NO Check the Scart1 Jack SC901 Scart1 Audio in Pins2 6 NO NO Check the front Jack L5F1 L5F2 Check the Scart2 Jack SC901 Scart2 Audio in Pins2 6 NO Check the Power 5 2V 12V...

Page 22: ...Signals appear at IC801 Pin16 L CH 17 R CH YES Do Audio Signals appear at IC803 Pin16 L CH 11 R CH YES YES YES Do Audio Signals appear at IC803 Pins3 5 Do Audio Signals appear at JK902 Check Power 5 2V 12VT NO Check IC501 Pin106 A H SW NO NO Check the parts of µ COM IC501 Pins59 60 NO Check the Connection at P3D01 Pins7 9 NO Check the A IN line of IC803 C837 C838 NO Check the Vcc of IC803 Pin13 Re...

Page 23: ...Audio signals appear at IC801 Pins16 17 YES Do FM Audio signals appear at IC801 Pin36 YES Check the Contact Point of Drum Connector if good then Replace the Drum YES Check Power 5V 12VT NO Check ports of µ COM IC501 pins 59 60 Check Audio input signal of IC801 Pins2 3 TU A 4 5 DVD A 6 7 AVI A 8 9 AV2 A 10 11 AV3 A NO Replace IC801 NO NO ...

Page 24: ...O Does the Video signal at the IC802 Pin29 Check the signal flow from IC803 Pin6 to SC901 Pin19 YES YES Check 33V line NO Check 5V line NO YES Does the Clock signal appear at TU701 Pin11 Check the lIC Clock Signal of µ COM Pin59 NO YES Does the data signal appear at TU701 Pin12 Replace Tuner Check the signal flow from TU701 Pin24 to IC301 Pin15 Check the signal from IC301 Pin65 to IC501 Pin17 Chec...

Page 25: ...IC801 Pins2 3 YES Check the Audio of IC801 Pins16 17 YES Check the Audio of IC803 Pins3 5 YES Check the Signal flow from IC803 Pins3 5 SC901 Pins1 3 YES Check the Tuner SIF of TU701 Pin22 NO Replace X751 NO Check the IIC Clock and Data at IC751 Pins12 13 NO Check the signal flow from IC751 Pins30 31 to IC801 Pins2 3 NO Check the IIC Clock and Data at IC801 Pins42 43 NO Check the signal flow from I...

Page 26: ...mal Are IC501 normal Does no DISC appear Does Hello appear at FLD Is PDV02 connected normally Is PDV02 Pins8 9 10 11 normal The waveform on AD 0 21 of IC501 normal Are IC301 Pins5 26 normal Replace Main B D Check the oscillation Check short OK Replace IC501 Check power Refer to power If power is normal OK POWER ON 1 1 YES YES YES YES NO YES YES YES YES A NO NO NO NO NO NO NO NO NO YES A ...

Page 27: ...ES If OK YES If OK Check MPEG_CLK Signal IC501 Pin22 of MPEG part Refer to Audio part Refer to MPEG part Replace Main B D Check Front Reconnect it Refer to SERVO part Check the connection of MD AUDIO ABNORMAL OPEN CLOSE ABNORMAL C Video abnormal Check Video jack YES If OK YES If OK YES If OK Refer to Video part Refer to MPEG part Replace Main B D VIDEO ABNORMAL ...

Page 28: ...K YES If OK YES If OK Refer to Servo part Check MPEG_CLK Signal IC501 Pin22 of MPEG part Check DSP Check MPEG YES If OK Replace Main B D PICTURE ABNORMAL F Disc Error Check Disc YES If OK YES If OK Refer to Servo part Replace main B D DISC ERROR ...

Page 29: ...oving picture of the video CD play on the screen normally Does the audio sound output normally END Check power clock Check CD DVD DSP output signal Check MPEG Decoder input signal Check CD DVD DSP output signal Check MPEG Decoder input signal Check CD DVD DSP output signal Check MPEG Decoder input signal Check clock signal Check clock signal YES YES YES YES YES YES YES YES YES YES NO NO NO OK OK O...

Page 30: ...es 33 8688MHz clock input to IC201 Pin138 Does 33 8688MHz clock input to IC201 Pin59 Is IC201 Pins79 80 84 88 voltage about 2 2V Replace IC201 IC206 soldering or IC defect Check power circuit Check 2 µ COM Part Replace X201 or IC206 33MHz clock defect CHECK POINT General 3 RF Servo Circuit A END NO NO NO NO NO YES YES YES YES YES ...

Page 31: ...move up and down Check Focus Driver output IC201 Pin88 IC2M1 Pins37 38 Check SLED Driver output IC201 Pin80 IC2M1 Pins28 29 IC201 Pin80 no output IC201 is defective IC2M1 Pins26 27 no output IC2M1 is defective IC201 Pin88 no output IC201 is defective IC2M1 Pins37 38 no output IC2M1 is defective DECK assembly is defective Slide the pick up to inner track Power on Check loading Part Push Pick up to ...

Page 32: ...r OPEN CLOSE Replace µ COM or IC201 Replace IC201 Check IC2A1 Pins47 50 51 52 in DVD Mode Fig 3 FOCUS ERROR waveform IC201 no output Pick up is defective Check IC201 and IC2M1 when PMD03 Pins1 2 are abnormal Check IC2M1 Pin21 PMD03 Pin1 2 turn when the IC2M1 Pin21 is less than 2 2V Video Part is defective Check 5 MPEG Circuit Check 7 OSD Video Circuit Replace µ COM part IC2A1 is defective DISC IN ...

Page 33: ... Pattern RF 1 5 1 6V TP2A0 Fig 5 RF waveform Check IC2A1 Pin3 No signal Pick up is defective Replace IC201 Check IC201 Pin84 No signal at IC201 IC201 is defective Check IC201 Pin165 Check the clock at he IC201 Pins37 59 Both are normal IC201 is defective Replace IC2A1 CHECK A D END NO NO NO NO YES YES YES YES ...

Page 34: ...ce 4 12 1 Mechanism Alignment Position Check 4 13 2 Preparation for Adjustment 4 14 3 Checking Torque 4 14 4 Guide Roller Height Adjustment 4 15 4 1 Preliminary Adjustment 4 15 4 2 Precise Adjustment 4 15 5 Audio Control A C Head Adjustment 4 16 5 1 Preliminary Adjustment 4 16 5 2 Confirmation of Tape Path between Pinch Roller and Take up Guide 4 17 5 3 Precise Adjustment Azimuth Adjustment 4 17 6...

Page 35: ...ssembly P4 Chassis Embossing A 5 T 17 Opener Lid Chassis Embossing A 5 T 17 18 Arm Assembly Pinch Shaft A 5 T 17 19 Lever T Up Arm T Up 1 Hook A 5 T 17 18 20 Belt Capstan Motor Capstan 3 Screw A 6 B 21 Lever F R Locking Tab A 6 B 20 21 22 Clutch Assembly D35 Washer A 6 B 23 Brake Assembly Capstan Locking Tab A 6 B 24 Gear Drive Gear Cam Washer Hook A 7 B 25 Gear Sector 1 Hook A 7 B 20 21 23 26 Pla...

Page 36: ...e the Drum assembly 3 Unhook H1 H2 and separate the Holder FPC and Cap FPC 1 1 Drum Motor 1 Remove two Screws S2 and disassemble the Stator of the Drum Motor 2 Remove two Screws S3 and separate the Rotor of the Drum Motor from the Drum Sub assembly NOTE When reassembling confirm A portion of the Drum Sub assembly whether the Carbon Brush is in there or not Fig A 1 Fig B 1 Holder FPC Drum FPC Cap F...

Page 37: ...te Top Arm Assembly F L Spring Lever S W Gear Assembly Rack F L Chassis Opener Door Bracket Assembly L D Motor Holder Assembly CST B C D E H6 A B Lever Assembly S W H8 Fig A 2 Fig A 2 1 Fig A 2 2 Fig A 2 6 Fig A 2 7 Fig A 2 5 Fig A 2 3 Fig A 2 4 ...

Page 38: ...or Figure A 2 3 1 Turn the Opener Door clockwise and remove it through the guide hole of the Chassis 5 Bracket Assembly L D Motor Fig A 2 4 1 Unplug the Connector C1 2 Unhook three Hooks H3 H4 H5 on bottom side of the Chassis lift up the Bracket Assembly L M and disassem ble the Bracket Assembly L D Motor 6 Gear Assembly Rack F L Fig A 2 5 1 Move the Gear Assembly Rack F L in direction of arrow A ...

Page 39: ...e direction and lift it up 10 Head F E Fig A 3 2 1 Breakaway the A portion of the Head F E from the embossing of the Chassis turn it to counterclockwise direction and lift it up 11 Base Assembly A C Head Fig A 3 3 1 Remove the Screw S4 and lift the Base Assembly A C Head up A Arm Assembly Cleaner Base Assembly A C Head S4 Head F E A Chassis Fig A 3 Fig A 3 1 Fig A 3 3 Fig A 3 2 ...

Page 40: ... Brake Assembly RS Fig A 4 2 1 Unhook the Spring RS from the Hook H10 of the Chassis 2 Lift the Brake Assembly T up 14 Arm Assembly Tension Fig A 4 3 1 Unhook the Spring Tension from the Hook H11 of the Arm Assembly Tension 2 Unhook the Hook H12 of the Base Tension and lift the Arm Assembly Tension up NOTE Difference for Springs 15 Reel S Reel T Fig A 4 4 1 Difference for Reel S Reel T Spring TB S...

Page 41: ...ner Lid Fig A 5 2 1 Breakaway the B portion of the Opener Lid from the embossing of the Chassis 2 Turn the Opener Lid to clockwise direction and lift it up 18 Arm Assembly Pinch Fig A 5 3 1 Lift the Arm Assembly Pinch up NOTE When reassembling confirm the C portion of the Arm Assembly Pinch is inserted to the Chassis hole correctly as Fig 19 Lever T up Fig A 5 4 Arm T up Fig A 5 5 1 Unhook the Hoo...

Page 42: ...apstan 2 Remove the three Screws S5 on bottom Chassis and lift the Motor Capstan up 21 Lever F R Fig A 6 3 1 Unlock the Locking Tab L1 as Fig A 6 3 and lift the Lever F R up 22 Clutch Assembly D35 Fig A 6 4 1 Remove the Washer W1 and lift the Clutch Assembly D35 up 23 Brake Assembly Capstan Fig A 6 5 1 Pull the Locking Tab L2 back in direction of arrow and lift it up Fig A 6 1 Fig A 6 2 Fig A 6 3 ...

Page 43: ...and the Gear Cam Hole B in a straight line after the Gear Drive Hole C is aligned with the Chassis Hole as Fig 25 Gear Sector Fig A 7 3 1 Unhook the Hook H15 of the Base Loading on bottom Chassis and lift the Gear Sector up 26 Plate Slider Fig A 7 4 1 Just lift the Plate Slider up 27 Lever Tension Fig A 7 5 1 Unhook the A portion of the Lever Tension from the Hook H16 of the Chassis 2 Turn the Lev...

Page 44: ... P3 up NOTE When reassembling align the two holes of the Gear Assembly P2 and P3 in a straight line after confirmation whether the Gear Sector Hole A and the Plate Slider Hole B are aligned or not as Fig 30 Base Assembly P2 Fig A 8 3 Base Assembly P3 Fig A 8 4 1 Move the Base Assembly P2 in direction of arrow A along the guide hole of the Chassis and disassemble it on bottom side 2 Move the Base A...

Page 45: ...ion Fig A 9 2 1 Breakaway the A portion of the Base Tension from the embossing of the Chassis 2 Turn the Base Tension to counterclockwise direction and lift it up 33 Arm Assembly Idler Fig A 9 3 1 Make narrower the two parts B and C as Fig A 9 3 2 Lift the Arm assembly Idler up NOTE When disassembling be careful not to be caught the D part by the Chassis as Fig Fig A 9 1 Fig A 9 2 Fig A 9 3 ...

Page 46: ...ice 1 Cassette Torque Meter PUJ42881 5 Post Height Adjusting Driver Roller driver PTU94002 2 Alignment Tape NTSC MHP PAL MHPE 3 Torque Gauge PUJ48075 2 SRK V DEO ASSETTE TORQUE METER H 303 S R K V H T S SRK V HT T 300 250 200 150 50 0 300 250 200 150 50 0 100 ...

Page 47: ...is as below Fig C 2 4 Remove the Screw which fixes the Deck Mechanism and Main Frame and confirm if the Gear Cam is aligned with the Gear Drive as below Fig C 1 A 5 Confirm if the Mode S W on the Main P C Board is aligned as below Fig C 1 B 6 Remount the Deck Mechanism on the Main P C Board and check each operation Gear Cam Gear Drive A Mode S W B L D Motor Assembly Gear Cam Chassis Hole Gear Cam ...

Page 48: ...daptor with the Torque Gauge affixed NOTE The torque reading to measure occurs when the tape abruptly changes direction from Fast Forward to Rewind Mode when quick braking is applied to both Reels SRK VIDEO CASSET E TORQUE METER VHT 303 S R K V H T S SRK V HT T 300 250 200 150 50 0 300 250 200 150 50 0 100 Test Equipment Fixture Torque Gauge 600g cm ATG Torque Gauge Adaptor Cassette Torque Meter C...

Page 49: ...velope CH 2 NTSC SW 30Hz PAL SW 25Hz Head Switching Output Point RF Envelope Output Point Test Conditions VCR VCP State Play an Alignment Tape Adjustment Point Guide Roller Height Adjustment Screws Fig C 4 2 Fig C 4 3 P3 POST ADJUSTMENT P2 POST ADJUSTMENT Turn the Roller Guide Height Adjustment Screw slightly to flatten the waveform Tracking Control at center RF ENVELOPE OUTPUT TEST POINT OSCILLOS...

Page 50: ...Screw Fig C 5 3 A C Head Tape Tape 0 2 0 25mm P4 5 1 Preliminary Adjustment Height and Tilt Adjustment Perform the Preliminary Adjustment when there is no Audio Output Signal with the Alignment Tape 1 Initially adjust the Base Assembly A C Head as shown Fig C 5 1 by using the Height Adjustment Screw B 2 Play a blank tape and observe if the tape passes accu rately over the A C Head without tape cur...

Page 51: ...ernately adjust the Azimuth Adjustment Screw A and the Tilt Adjustment Screw C for maximum output of the 1KHz and 7KHz segments while maintaining the flattest envelope differential between the two frequencies Adjustment Procedure 5 3 Precise Adjustment Azimuth adjustment 6 X Value Adjustment Fig C 5 4 1KHZ Oscilloscope Alignment Tape SP only Screw Driver Type 5mm CH 1 PB RF Envelope CH 2 NTSC SW 3...

Page 52: ...tions Mechanism Condition Play the Blank Tape Play an Alignment Tape Adjustment Points Guide Roller Precise Adjustment Switching Point Tracking Preset X Value Checking Adjustment Procedure Play a blank tape and check for tape curling or creasing around the Roller Guide If there is a problem then follow the procedure 4 Guide Roller Height and 5 Audio Control A C Head Adjustment RF ENVELOPE OUTPUT T...

Page 53: ...nch Roller NOTE If locations marked with o do not operate normally after cleaning check for wear and replace See the EXPLODED VIEWS at the end of this manual as well as the above illustrations and see the Greasing Page 4 21 22 for the sections to be lubricated and greased o o o o Dirt on Video Head Dirt on tape transport system Low volume Sound distorted Tape does not run Tape is slack o In Review...

Page 54: ...video head First use a cleaning tape If the dirt on the head is too stubborn to remove by tape use the cleaning patch Coat the cleaning patch with Isopropyl Alcohol Touch the cleaning patch to the head tip and gently turn the head rotating cylinder right and left Do not move the cleaning patch vertically Make sure that only the buckskin on the cleaning patch comes into contact with the head Otherw...

Page 55: ...ding Path Inside Top side 2 Base Assembly P2 P3 stopper 3 Shaft 4 L D Motor Gear Wheel Part 5 Arm Take up Rubbing Sections 6 Reel S T shaft G381 Yellow 7 Arm Assembly F L Rotating Sections Guide Rail Base Loading Gear Drive Gear Sector Gear Cam Gear Part Chassis Left Side Chassis Right Side 5 7 8 1 2 6 4 3 Slider Guide Slider Guide 1 Loading Path Inside Top side 2 Base Assembly P2 P3 stopper 3 Sha...

Page 56: ...MAINTENANCE INSPECTION PROCEDURE 4 22 Lever F R Base Tension GEAR AY P2 P3 Lever F R Base Tension Arm Tension Guide Hole Clutch G 754 Yellow Boss Cam ...

Page 57: ... sensor Check the syscon circuit NO YES YES YES YES NO NO 1 Deck Mechanism A NO NO NO No F R modes Is the present mode F R Mode Is the mode SW assembled correctly refer to page 4 13 Is the normal voltage supplied to the Capstan Motor Vcc1 Vcc2 Does terminal voltage Vctl of Capstan Motor supply side more than 4V Check the servo power circuits Replace the Capstan Motor Does the Capstan Motor rotate ...

Page 58: ...page 4 13 Replace the Drum Motor Check the Servo Syscon Check the Syscon µ COM Cassette doesn t load Insert the cassette Check Lever Assembly S W Is there variation for CST IN S W Output In Tape with REC Tab L H L In Tape without REC Tab L H L H Does the CST IN S W work normally Does the Lever Assembly S W work normally Check the Syscon Circuit Check the Syscon Circuit Replace the CST IN S W YES Y...

Page 59: ...k Check the Syscon Circuit Check the Syscon Circuit Check the Servo Syscon Does the Capstan Motor turn Is the terminal voltage vctl of the Drum Motor more than 4V Replace the Drum Motor Is the Vcc voltage of the Drum Motor normal Check the Clutch and Idler Assembly YES YES YES YES YES YES YES YES NO NO NO NO NO Is the terminal voltage vctl of Capstan Motor supplied more than 4V Replace the Capstan...

Page 60: ... 5V YES Is there a short circuit between cassette switch and GND on main P C Board Remove the short circuit part or Replace the main P C Board NO Check the Mode switch location and syscon circuit Replace the CST IN Switch YES NO YES NO NO Replace the CST IN Switch NO NO Cassette does not eject Does the L D Motor rotate in reverse Check the L D Motor or Drive IC Replace the Lever Assembly Switch Do...

Page 61: ...Assembly F L Check the power of L D Motor Check the Holder Assembly Cassette assembled correctly Replace the Gear Rack F L Does the Gear Assembly Rack F L work Does the Opener Door work Does the Arm Assembly F L work Does the L D Motor work Does the Holder Assembly Cassette move the Arm Assembly F L Replace the Front Loading Mechanism Assembly YES YES YES YES NO NO NO YES NO YES NO YES NO C ...

Page 62: ...4 28 EXPLODED VIEWS 117 103 105 117 100 106 107 A21 114 113 112 110 115 A24 116 102 A23 032 A22 109 054 054A 100A 100B 1 Front Loading Mechanism Section ...

Page 63: ...29 401 402 001 008 011 031 079 017 032 024 406 020 021 028 019 018 029 030 026 A03 A04 A01 002 002A 025 027 022 003 004 006 007 010 405 014 015 009 409 013 023 016 405 012 402 OPTIONAL PART 2 Moving Mechanism Section 1 ...

Page 64: ...EXPLODED VIEWS 4 30 051 052 517 061 056 058 518 052A 055 060 410 070 069 076 032 077 068 064 066 065 067 A11 078 A12 OPTIONAL PART 3 Moving Mechanism Section 2 ...

Page 65: ...5 2 1 1 3 Clamp Upper 5 2 2 Tray Disc 5 2 3 Base Assembly Sled 5 3 3 1 Gear Assembly Feed 5 3 3 2 Gear Assembly Middle 5 3 3 3 Gear Assembly Rack 5 3 4 Rubber Rear 5 3 5 Frame Assembly Up Down 5 4 6 Belt Loading 5 4 7 Gear Pulley 5 4 8 Gear Loading 5 4 9 Guide Up Down 5 4 10 PWB Assembly Loading 5 4 11 Base Main 5 4 EXPLODED VIEW 1 Deck Mechanism Exploded View 5 5 CONTENTS SECTION 5 MECHANISM OF D...

Page 66: ... Up Down Belt Loading Gear Pulley Gear Loading Guide Up Down PWB Assembly Loading Base Main 2 Screws 2 Locking Tabs 4 Screws 1 Connector 1 Locking Tabs 1 Screw 1 Screw 1 Locking Tab 1 Locking Tab 1 Locking Tab 1 Hook 2Screw 2 Locking Tabs 5 1 5 1 5 1 5 1 5 1 5 2 5 3 5 3 5 3 5 3 5 3 5 4 5 4 5 4 5 4 5 4 5 4 5 4 Bottom Bottom Procedure Parts Fixing Type Fig ure Disass embly Note When reassembling per...

Page 67: ...e direction and then lift up the Plate Clamp 1 1 2 Magnet Clamp 1 1 3 Clamp Upper 2 Tray Disc Fig 5 2 1 Insert and push a Driver in the emergency eject hole A at the right side or put the Driver on the Lever B of the Gear Emergency and pull the Lever B in direction of arrow so that the Tray Disc is ejected about 15 20mm 2 Pull the Tray Disc until it is separated from the Base Main completely HOLDE...

Page 68: ...ction of arrow 3 2 Gear Middle 3 3 Gear Assembly Rack 1 Release the Scerw S3 4 Rubber Rear Fig 5 3 GEAR MIDDLE GEAR ASSEMBLY RACK PICK UP ASSEMBLY GENERAL GEAR ASSEMBLY FEED GEAR MIDDLE GAER ASSEMBLY RACK MOTOR ASSEMBLY SPINDLE RUBBER REAR MOTOR ASSEMBLY SPINDLE PICK UP ASSEMBLY GENERAL BASE PU OUTSERT GEAR ASSEMBLY FEED L2 S2 S2 C1 S2 S2 BLACK GREEN S3 BLACK GREEN Fig 5 3 ...

Page 69: ...Fig 5 4 9 Guide Up Down Fig 5 4 1 Move the Guide Up Down in direction of arrow A as Fig A 2 Push the Locking Tab L5 down and then lift up the Guide Up Down to separate it from the Base Main When reassembling place the Guide Up Down as Fig C and move it in direction arrow B until it is locked by the Locking Tab L5 And confirm the Guide Up Down as Fig A 10 PWB Assembly Loading Fig 5 4 Put the Base M...

Page 70: ...EXPLODED VIEWS 1 Deck Mechanism Exploded View A01 A26 008 009 016 A03 010 A02 014 017 015 431 431 011 011A 430 013 432 026 430 430 012A 430 012 430 012 429 004 001 003 002 012A 018 020 429 5 5 ...

Page 71: ...VICTOR COMPANY OF JAPAN LIMITED 12 3 chome Moriya cho Kanagawa ku Yokohama Kanagawa prefecture 221 8528 Japan AV MULTIMEDIA COMPANY Printed in Japan 0306 VP ...

Page 72: ... and performance We recom mend that genuine JVC parts be used 6 1 1 PACKING AND ACCESSORY ASSEMBLY M1 The instruction manual to be provided with this product will differ according to the destination 6 1 EXPLODED VIEW BATTERY 808 BAG 804 PACKING OPTIONAL PARTS 803 806 INSTRUCTION ASSEMBLY CABLE COAXIAL 810 CABLE ASS Y RF 801 REMOCON 900 BOX CARTONX 802 PACKING 803 811 812 PLUG ASS Y YELLOW PLUG ASS...

Page 73: ...6 2 6 1 2 FINAL ASSEMBLY M2 300 OPTIONAL PARTS 465 260 A46 A46A A48 A00 A26 285 457 457 457 459 467 467 452 452 330 323 250 467 467 467 A43 A42 A49 280 284 283 LD601 276 274 ...

Page 74: ...019 018 029 030 026 A03 A04 A01 002 002A 025 027 022 003 004 006 007 010 405 014 015 009 409 013 023 016 405 012 402 A22 109 054 054A 115 A24 116 114 113 112 110 A23 100 100A 100B 117 103 105 117 106 107 A21 102 051 052 517 061 056 058 518 052A 055 060 410 070 069 076 032 077 068 064 066 065 067 A11 078 A12 ...

Page 75: ...6 4 6 1 4 MECHANISM ASSEMBLY DVD MN A01 A26 008 009 016 A03 010 A02 014 017 015 431 431 011 011A 430 013 432 026 430 430 012A 430 012 430 012 429 004 001 003 002 012A 018 020 429 ...

Page 76: ...P 028 LG 4408R 0004A REEL T 029 LG 4261R 0019C ARMASSEMBLY DECK MECHAPINCH 030 LG 4510R 0043A LEVER T UP 031 LG 4970R 0123A SPRING COILTENSION D35 032 LG 3141R 0040A CHASSISASSY D35 NSP 051 LG 4400R 0005A BELT CAPSTAN 052 LG 4680R A007A MOTOR MECH CAPSTANF2QVB06SANKYOD35ASR 052A LG 4980R 0023A SUPPORTER CAPSTAN D35 054 LG 4470R 0100A GEAR RACKF L 054A LG 4970R 0124B SPRING COILD35 RACKF L 055 LG 4...

Page 77: ...RBONFILM 100KOHM1 6W5 TA26 R130 QRD161J 104Y RESISTOR FIXEDCARBONFILM 100KOHM1 6W5 TA26 R131 QRE121J 224Y RESISTOR FIXEDCARBONFILM 220KOHM1 6W5 TA26 R132 QRE121J 224Y RESISTOR FIXEDCARBONFILM 220KOHM1 6W5 TA26 R151 QRD161J 562Y RESISTOR FIXEDCARBONFILM 5 6KOHM1 6W5 TA26 R152 QRD161J 562Y RESISTOR FIXEDCARBONFILM 5 6KOHM1 6W5 TA26 R153 QRD161J 472Y RESISTOR FIXEDCARBONFILM 4 7KOHM1 6W5 TA26 R154 QR...

Page 78: ...C707 LG 0CH4680K412 CAPACITOR FIXEDCERAMIC HIGHD 68PF50V5 NP01608R TP C708 LG 0CE4776C638 CAPACITOR AL ELECTROLYTIC 470USMS6 3VMFM5TP 5 C709 LG 0CH1103K512 CAPA CHIPCERAMICM LH DF S 0 0100UF50VKB1608R TP C710 LG 0CE4754K638 CAPACITOR FIXEDELECTROLYTIC 4 7UFSRA SS50V20 FM5TP5 C712 LG 0CH1103K512 CAPA CHIPCERAMICM LH DF S 0 0100UF50VKB1608R TP C713 LG 0CH4560K412 CAPA CHIPCERAMICM LT CF S 56P50VJCOG...

Page 79: ...G KEC Q505 KTA1504 G X TRANSISTOR KTA1504 GR T1 ASG CHIPKEC Q514 KRC103S X TRANSISTOR CHIPKRC103S T1 NC 22 22KEC Q515 KRC103S X TRANSISTOR CHIPKRC103S T1 NC 22 22KEC Q5L1 LG 0TR387509AC TRANSISTOR CHIPKTC3875S GR T1 ALG KEC Q5L2 LG 0TR387509AC TRANSISTOR CHIPKTC3875S GR T1 ALG KEC Q5S1 LG 0TR387509AC TRANSISTOR CHIPKTC3875S GR T1 ALG KEC Q705 LG 0TR320509AB TRANSISTOR KTC3205 TP Y KTC2236A KEC Q80...

Page 80: ...GLAZED CHIP 100OHM1 16W16085 00 D R801 NRSA6AD 335W RESISTOR METALGLAZED CHIP 3 3MOHM1 16W16085 00 D R802 NRSA6AD 333W RESISTOR METALGLAZED CHIP 33KOHM1 16W16085 00 D R803 NRSA6AD 272W RESISTOR METALGLAZED CHIP 2 7KOHM1 16W16085 00 D R804 NRSA6AD 393W RESISTOR METALGLAZED CHIP 39KOHM1 16W16085 00 D R805 NRSA6AD 272W RESISTOR METALGLAZED CHIP 2 7KOHM1 16W16085 00 D R806 NRSA6AD 333W RESISTOR METALG...

Page 81: ...2C1 LG 0CH1103K562 CAPACITOR FIXEDCERAMIC Temp c 0 01UF50V10 X7R X 1608R T C2C2 QET61CM 106Z CAPACITOR ELECTROLYTIC 10M SRA16V MFM5 TP 5 C2C4 LG 0CH1102K562 CAPACITOR FIXEDCERAMIC Temp c 1000PF50V10 X7R X 1608R T C2C5 LG 0CH1332K562 CAPACITOR CHIP CERAMICM LHD 3300P50VKX7R1 6X0 8R TP C2C6 LG 0CH1102K562 CAPACITOR FIXEDCERAMIC Temp c 1000PF50V10 X7R X 1608R T C2C8 LG 0CH1104K942 CAPACITOR CHIP CERA...

Page 82: ...12 102JT CERATECHTP L507 LG 6200HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECHTP L510 LG 6200HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECHTP L511 LG 6200HJC102A FILTER CIRC EMC HB 1M2012 102JT CERATECHTP Q2A1 2SA1037K QR X TRANSISTOR BIPOLARS 2SA1037K QCHIPTPROHM Q2A2 2SA1037K QR X TRANSISTOR BIPOLARS 2SA1037K QCHIPTPROHM Q2A5 LG 0TR388209AA TRANSISTOR BIPOLARS CHIPKTC3882SOT23TPKEC Q2A6 LG 0...

Page 83: ... 00 D R403 NRSA63J 100X RESISTOR METALGLAZED CHIP 10OHM1 16W16085 00 D R404 NRSA63J 682X RESISTOR METALGLAZED CHIP 6 8KOHM1 16W16085 00 D R405 NRSA63J 182X RESISTOR METALGLAZED CHIP 1 8KOHM1 16W16085 00 D R406 NRSA63J 182X RESISTOR METALGLAZED CHIP 1 8KOHM1 16W16085 00 D R407 NRSA63J 103X RESISTOR METALGLAZED CHIP 10KOHM1 16W16085 00 D R409 NRSA63J 682X RESISTOR METALGLAZED CHIP 6 8KOHM1 16W16085 ...

Page 84: ...7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 PMD02 SPM SPM FM FM LM LM SW OPEN SW CLOSE GND SW LEAD IN GND 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 P3D02 CTL CTL A E A E A REC A PB 1 2 3 4 5 6 1 2 3 4 5 6 GND FULL ERASE P3D03 1 2 1 2 S COMPO SW COAXIAL OPTICAL GND DVD LED H K RTN 1 DVD RESET DVD ENA DVD CLK DVD DATA IN DVD DATA ...

Page 85: ...RCUIT BL WH F101 C111 HOT GND R101 SNUBBER BLOCK D101 R104 C105 C106 RECTIFIER SMOOTHING D110 C123 L122 C126 C163 RECTIFIER SMOOTHING D106 C117 R130 RECTIFIER SMOOTHING D111 C127 L123 C128 RECTIFIER SMOOTHING D112 L124 C129 C131 FEED BACK BLOCK R112 R113 C133 R114 R115 R116 R117 8VA REG BLOCK D114 IC151 C154 12VA REG BLOCK Q156 ZD103 C151 C152 R153 HSR SW BLOCK Q155 Q153 Q154 ZD104 C156 R161 R151 ...

Page 86: ...3 22 3 23 3 VPS BLOCK DIAGRAM 2 Tu IF NICAM A2 BLOCK DIAGRAM From Power 159 27 731 60 59 93 94 158 143 872 159 871 151 5 4VA 5 2VT S V W MSP3417 MSP3407 ...

Page 87: ...tem NL De eMPH VCA C K LPF BD BPF CCD LPF APC ACC DET L DET Main Conv2 Main Conv1 FBC Video ALC REC MODE 28 29 51 49 53 55 46 19 15 17 18 36 40 38 37 23 26 31 14 9 8 11 LINE 2 VIDEO IN LINE 1 VIDEO IN TV VIDEO IN 57 45 73 65 74 69 67 80 85 86 87 89 91 90 ATT 10dB VIDEO AGC CLEAR SYNC V OUT TO u COM D V SYNC TO u COM System System System Y CCD C CCD CLOCK Drive 6dB AMP FBC Video ALC SQUEL CH ATT 10...

Page 88: ...B A Hi Fi REC 1 2 3 4 5 6 7 10 11 21 22 36 35 16 A OUT L A OUT R 17 8 9 AUDIO INPUT BLOCK AUDIO INPUT BLOCK DVD A IN L DVD A IN R NORMAL AUDIO OUT To AVCP NORMAL AUDIO IN From AVCP Tu A IN L Tu A IN R DVD A IN L DVD A IN R EU1 A IN L EU1 A IN R EU2 A IN L EU2 A IN R AV2 A IN L AV2 A IN R MODULATOR A OUT To Tu ...

Page 89: ...9 6 SYSTEM BLOCK DIAGRAM 2fsc R524 R514 R518 R516 R589 C577 C576 L501 Q504 LD LD L M CONTROL R525 R526 IC501 HD6432197A DVD VCR DATA IN VCR DATA OUT DVD CLK DAV OTPB LED H R C IN 2W NC CST SW A ENV CANAL DET H ...

Page 90: ...TANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS UNDER NO CIR CUMSTANCES SHOULD THE ORIGINAL DESIGN BE MOD FIED OR ALTERED WITHOUT PERMISSION FROM THE JVC ELECTRONICS CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES DENTICAL TO THOSE N THE ORIGINAL CIR CUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS C RCUIT DIAGRAM MAY OCCASIONALLY D F FER FROM THE ACTUA...

Page 91: ...3 32 3 33 2 TU IF NICAM A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO 03 4 7 SR14506A VJW602CP s ...

Page 92: ... 03 4 7 SR14502A VJW602CP s Y REC C REC Y PB Y PB C PB Y C PB C PB Y C REC H SW Level is defective Video Noise R333 C357 C358 are defective No Color L307 C349 are defective No Color C332 is defective Video output level unstable R322 R323 R324 C320 are defective VIDEO Distortion ...

Page 93: ...3 36 3 37 4 Hi Fi CIRCUIT DIAGRAM PB REC 03 4 7 SR14503A VJW602CP s 44 Pin is defective Hi Fi Audio is not appear IC801 Pins42 43 aredefective All Audio is not appear ...

Page 94: ...3 38 3 39 5 SCART JACK CIRCUIT DIAGRAM 03 4 7 SR14505B VJW602CP s ...

Page 95: ...ve CLOCK SETTING will not operate X502 is defective µ COM will not operate ES501 ES502 LD501 are defective Auto Rew will not working RS501 RS502 Q514 Q515 are defec ive Auto stop occures R575 R576 R577 R578 are defective Deck will not operate IC504 is defective Reset is defective Set dead SW is defective Key service dead RC501 is defective R C will not operate ...

Page 96: ...DEO OUT IC301 Pin 43 200mV 20msec DIV PB C OUT IC301 Pins 46 57 200mV 20msec DIV VV EE from 1H CCD Pin 46 to 1H CCD Pin 57 IC301 Pin 67 100mV 0 2msec DIV PB REC 3 58MHz X TAL IN IC301 Pin 77 100mV 5msec DIV PB PB RF out IC301 Pin 86 500mV 2msec DIV SP REC REC RF IC301 Pin 90 500mV 2msec DIV EP REC REC RF IC501 Waveform V HSW IC501 Pin 105 1V 10mS REC PB MODE DV SYNC IC501 PIN 109 1V 100uS QUE REV ...

Page 97: ...V 0 002 V 2 75 V 2 75 V 2 6 V 2 35 V 0 003 V 0 002 V 2 55 V 2 9 V 2 V 2 55 V 2 55 V 2 6 V 2 52 V 2 26 V 5 11 V 1 66 V 1 67 V 2 3 V 0 53 V 1 36 V 1 8 V 2 26 V I C 5 0 1 I C 8 0 1 I C 8 0 2 EE PB REC MODE PIN NO 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 4 7 V 2 19 V 0 01 V 2 2 V...

Page 98: ...R 2 65 V 1 93 V 2 4 V Q504 BASE 0 59 V 0 51 V 0 50 V EMITER 0 03 V 0 03 V 0 03 V COLECTOR 3 78 V 3 75 V 3 71 V Q5S1 BASE 0 006 V 0 005 V 0 003 V EMITER 1 77 V 1 8 V 1 89 V COLECTOR 2 41 V 2 1 V 2 4 V Q515 BASE 4 94 V 0 5 4 3 V 0 4 4 9 V EMITER 0 002 V 0 003 V 0 005 V COLECTOR 0 02 V 0 2 3 5 V 0 4 4 9 V Q514 BASE 4 96 V 0 8 4 2 V 0 2 4 3 V EMITER 0 002 V 0 002 V 0 003 V COLECTOR 0 02 V 0 01 4 8V 0 ...

Page 99: ...3 48 3 49 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...

Page 100: ...3 50 3 51 2 SMPS P C BOARD LOCATION GUIDE NOTES Warning Parts hat are shaded are critical With respect to risk of fire or electricial shock ...

Page 101: ...391 XI O1 XIO XIO10 SRST F_CLK F_OUT PCMCLK ALE MSDATO MDP1 FOK DEFECT DSP_ SENSE LOCK E_SOUT ZISENB XRST DAC_RST 16 9 PAL_SW AUTO_SW MIC_ON Y_SEL A_MUTE DAC_CS1 DAC_CS2 V_MUTE DAC_CLK DAC_OUT ADCCLK ACT MUTE LOAD OPEN LOAD CLOSE MIRR AD 04 21 PSENB FLD FLD_CS FLD_CLK FLD_OUT EE CS EE CLK EE OUT F IN I C3F1 FLA SH ROM FLASH_CS RD PWEO LA 0 LA 1 LA 2 LA 3 LADD 04 19 MD 00 31 MCLK2 CKE MA 00 10 MA12...

Page 102: ... SENS FOK MSDATO DEFECT DSP_SENSE SQSO SQCK SCOR XLAT S_CLK S_DATA DSP_CS WR RD DO 0 7 AO 0 5 DVD_DATA 0 7 MCK UCOM I F MPEG I F UCOM I F M D DVD CD RF FE TE PI MIRR TZC ICADDR 0 8 ICDATA 00 15 MON MDP FDO TDO FMO Spindle focus tracking loading sled Load open close loading control CD A B C D E F 4 4 5 3 3 3 8 6 8 8 2 4 9 16 NS 2 RF CD DSP DVD DSP DVD SERVO BLOCK DIAGRAM ...

Page 103: ...3 62 3 AUDIO BLOCK DIAGRAM IC401 CS4932 Audio DAC IC402 LPF Buffer KA 5532 OP AMP L R U COM I F DA_DATA0 DAC_RST S_DATA S_CLK DAC_L0 DA_LRCK DA_BCK DA_XCK L R TO VCR MPEG I F NS ...

Page 104: ...SDATA SQCK SQS0 REQP SDCLK1 PSYNC DSP_ INT SENSE DSP_ CS AD 04 21 RF MOTOR I F MI RR LDON SCLK SD ATA EE_CS F_IN 32 MD 00 31 MCLK2 CKE MA 00 10 MA12 13 CS0 RAS CAS WE DQM 0 3 SPINDLE_ FG ALE AD 04 19 16 LADD 04 19 16 LA 0 3 4 AD 00 15 16 AUDIO DA_DATA 0 3 DA_BCK DA_LRCK DA_XCK 4 DAC_L0 DAC_L1 DAC_RST TO VCR C R B CVBS G R Y B G CVBS V_MUTE 16 9 ZISENB RD PWED IC301 NS ...

Page 105: ... 02 12 04 R17147A COMBI NS 5 TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM 16M SDRAM 10µ 16V 22 DSP II TO FROM MPEG 3 64 3 65 CIRCUIT DIAGRAMS 1 DVD DSP CIRCUIT DIAGRAM ...

Page 106: ...17145A COMBI NS TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM Q2A5 Q2A6 TO FROM MEMORY TO FROM MEMORY TO FROM DSP TO FROM DSP TO FROM MPEG TO FROM MEMORY TO FROM DSP TO FROM DSP 3 66 3 67 2 DRIVE RF CIRCUIT DIAGRAM ...

Page 107: ...lay system not working Tray not open close Digitron all not display system not working Digitron all not display system not working 02 12 04 R17148A COMBI NS Digitron all not display system not workry DRIVE RF 3 68 3 69 3 MEMORY CIRCUIT DIAGRAM ...

Page 108: ... 12 04 R17150A COMBI NS PDV01 PPD01 PDV02 PMD01 PDV03 PMD02 TO FROM VCR JACK TO FROM VCR SYSTEM TO FROM VCR POWER TO FROM MPEG TO FROM MPEG TO FROM JACK TO FROM MEMORY 3 70 3 71 4 INTERFACE CIRCUIT DIAGRAM ...

Page 109: ...Optical Coaxial out CVBS Y Pb Pr Componet Y C S VHS WAVEFORM 02 12 04 R17146A COMBI NS HB 1S1608 MM74HCT244 3 72 3 73 5 µ COM EXPANDER CIRCUIT DIAGRAM ...

Page 110: ... 02 12 04 R17149A COMBI NS DAP202K 3 74 3 75 6 JACK CIRCUIT DIAGRAM ...

Page 111: ... Drive FDO IC501 Pin 118 Composite IC501 Pin 112 Chrominance Super video out Mode ek Stop 2 50MS s 4 Acqs M20 0µs 2 Apr 1999 14 47 27 Glitch Ch1 Ch3 500mV 3 IC501 Pin 114 Luminance Super video out Mode ek Stop 1 00kS s 3290 Acqs M 500µs CH1 280 mV Edge Slope ype Edge Source Ch1 Coupling DC Level 280mV Mode Holdoff 3 Ch3 1 00V T Slope IC501 Pin 98 MPEG Clock 27MHz IC501 Pin 112 Component Pb IC501 P...

Page 112: ... 50 0 00 1 71 1 78 1 73 1 74 1 92 1 91 0 00 0 00 0 00 0 00 1 94 2 33 2 33 2 06 3 17 0 00 0 00 0 00 3 26 3 25 0 00 3 25 0 00 0 00 0 00 3 24 3 26 0 00 0 20 2 16 1 80 1 57 0 00 0 00 0 00 0 00 0 00 0 00 0 00 3 25 0 00 0 00 0 00 0 00 0 00 0 00 4 01 4 05 3 97 0 00 0 13 4 92 0 00 0 00 0 00 4 00 4 21 3 75 0 00 7 89 0 00 0 00 0 00 0 00 0 00 2 15 0 00 2 15 0 38 0 00 0 00 0 00 3 26 3 26 0 00 3 26 0 00 3 26 0...

Page 113: ... Y I C 2 0 3 I C 4 0 2 EE PLAY MODE 0 05 0 00 0 00 0 00 0 00 0 00 0 00 0 05 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 2 38 0 00 0 00 3 26 3 26 0 00 0 00 3 26 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 3 23 3 26 0 00 3 23 1 98 0 00 1 91 0 00 1 45 0 00 1 45 0 00 3 26 0 19 0 00 2 09 0 00 1 19 0 00 1 95 0 00 3 05 3 04 3 25 3 05 3 04 0 00 3 04 3 04 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 0 00 2 78 0 00...

Page 114: ...1 C288 C2C9 C284 C211 C212 C274 C213 C272 C263 C264 C261 C321 C2D5 C2A4 C2C2 C2D1 C507 C539 C561 C504 C308 C317 C309 C409 C405 C408 C422 C404 C402 C401 C419 C420 C415 C403 C413 C2M1 C2D4 C2M8 CAPACITOR STOP PLAY MODE 5 09 5 09 0 00 5 07 5 07 0 00 2 83 3 21 5 09 2 29 3 11 2 70 0 00 0 00 3 26 5 17 4 48 5 17 1 55 0 00 0 75 1 56 0 00 0 75 5 05 5 24 0 00 0 00 0 00 1 82 2 36 3 12 3 84 2 43 3 20 3 66 0 0...

Page 115: ...LOCATION GUIDE 3 84 3 85 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...

Page 116: ...LOCATION GUIDE 3 86 3 87 2 MAIN P C BOARD BOTTOM VIEW E O E No 82984 HR XV2EX HR XV2EY HR XV2EL HR XV11EX No 82985 HR XV2EK VP D2VP11 ...

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