Hitachi DV-PF2U Page 41 Service Manual Download

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2-3-2

Alignment 3

Cam Gear (A), Rack Assembly

Install the Rack Assembly so that the first tooth on
the gear of the Rack Assembly meets the first
groove on the Cam Gear (A) as shown in Fig. AL4.

Cam Gear (A)

First tooth

First groove
on the Cam Gear (A)

Alignment 3

Top View

Gear on Rack Assembly

Fig. AL4

Summary of Contents for DV-PF2U

Page 1: ...O CHANGE FOR IMPROVEMENT TK No 9206E DV PF2U April 2002 OPEN CLOSE STOP SKIP PLAY SEARCH SKIP DVD VCR STOP EJECT REW PLAY POWER STANDBY F FWD REC ITR TIMER SET VCR TV CST IN OUTPUT CHANNEL VIDEO IN L mono R AUDIO IN This video deck is VHS type video recorder For proper operation only the VHS type cassette must be used ...

Page 2: ...ponents 2 7 1 Cleaning 2 7 2 EXPLODED VIEWS 3 1 1 Cabinet 3 1 1 Deck Mechanism View 1 3 1 2 Deck Mechanism View 2 3 1 2 Deck Mechanism View 3 3 1 3 REPLACEMENT PARTS LIST 3 2 1 Mechanical Parts List 3 2 1 Electrical Parts List 3 2 3 SCHEMATIC DIAGRAMS CBA S AND TEST POINTS 4 1 1 VCR Section Wiring Diagram 4 1 3 Main 1 5 Schematic Diagram 4 1 4 Main 2 5 Schematic Diagram 4 1 5 Main 3 5 Schematic Di...

Page 3: ... 0 5 Power consumption 25 W standby 7 2 W Operating temperature 5 C to 40 C Dimensions W 17 1 8 435 mm H 4 99 mm D 10 1 2 266 mm Weight 8 8 lbs 4 kg SPECIFICATIONS Manufactured under license from Dolby Laboratories Dolby and the double D symbol are trademarks of Dolby Laboratories DTS and DTS Digital Out are trademarks of Digital Theater Systems Inc CHAPTER 1 GENERAL INFORMATION ...

Page 4: ... 4 Modes Back up Time 30 s SQPB V Surge Absorber V Auto Power Off Feature V Local Broadcast Setting V Multi Search Feature V Index Time Search Search Speed SP X5 LP X5 X9 EP X5 X15 SP X5 EP X5 X15 FF REW Time T 120 Tape FF approx 4 min REW approx 4 min Head Composition DA4 Hi Fi SP 2 49 58 µm EP 2 21 21 µm Hi Fi Audio 2 28 28 µm Video Head Material SP Ferrite EP Ferrite Hi Fi Audio Ferrite VISS V ...

Page 5: ...8 30 CD 16 2 to 60 FORWARD REWIND 2 to 128 FORWARD REWIND Slow Speed 1 16 1 8 1 2 FORWARD only 1 8 1 4 1 2 FORWARD only IP Search Smooth 2x Play O 2x Play with Audio Step Forward Reverse O Still Picture Select Frame Field Auto Only O Disc Navigation O DV P315U DV P313U DVD Zoom x2 x4 x16 O O Program and Random Play of DVD VCD O O A B Repeat O Repeat O Last Play O Closed Caption for NTSC DVD O Fron...

Page 6: ...shown in the figure When checking the laser diode be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on Do not look directly at the laser beam Caution Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure Do not look directly at the laser beam coming from the pickup or allow it to str...

Page 7: ...cially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads D Use specified insulating materials for hazardous live parts Note especially 1 Insulation tape 2 PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before solder ing F Observe that the wires do n...

Page 8: ...nce only Be sure to confirm the precise values 2 Leakage Current Test Confirm the specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessible parts RF termi nals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Powe...

Page 9: ...he flat pack IC with tweezers while apply ing the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 4 Release the flat pack IC from the CBA using twee zers Fig S 1 6 Caution 1 Do not supply hot air to the chip parts around the flat pack I...

Page 10: ...s of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing entir...

Page 11: ...e to a potential difference caused by electro static charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1MΩ that is prop erly grounded to remove any static electricity that may be charged on the body 2 Ground for Workbench 1 Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the semi con...

Page 12: ...ll stop the function of Tape Start Sensor Tape End Sen sor and Reel Sensors If these TPs are connected before plugging in the unit the function of the sensors will stay valid See Fig 1 Note Because the Tape End Sensors are inactive do not run a tape all the way to the start or the end of the tape to avoid tape damage About REC Safety Switch Caution The REC Safety Switch is directly mounted on the ...

Page 13: ...ENT 5 IRT Light Lights up during recording 6 TIMER SET Light This light glows when the DVD VCR is in standby mode or off for a timer recording or during a One Touch Recording It flashes if the TIMER SET Button is pressed for a timer recording but there is no tape in the DVD VCR It flashes when all timer recordings or Instant Recording Timer are finished 7 POWER STANDBY Button Press to turn the pow...

Page 14: ...elected section 30 REPEAT Button Repeats playback of the current disc title chapter or track 31 MODE Button Activates program playback or random playback mode when playing CDs or MP3 Sets Black level or SRS TruSurround 32 ZOOM Button Enlarges part of a DVD reproduced image 33 CLEAR C RESET Button DVD mode Press to reset the setting VCR mode Press to reset the counter Press to exit from the MENU sc...

Page 15: ...gram For example setting clock or timer program Press to select the setting modes from the on screen menu 52 CH Buttons Press to change TV channels on the DVD VCR 53 REC Button Press once to start a recording 54 SPEED Button Press to select the VCR s recording speed SP or SLP 55 VCR Button Press to select VCR mode for the remote control You can switch the OUTPUT mode either by pressing the OUTPUT ...

Page 16: ...l source laser disc player video disc player etc here 7 VIDEO OUT JACK DVD VCR Connect the yellow video cable supplied here and to the TV s Video In jack 8 ANALOG AUDIO OUT JACKS DVD VCR Connect the supplied audio cables here and to the Audio In jacks of a television or other audio equipment 9 ANALOG AUDIO OUT JACKS DVD only Connect the supplied audio cables here and to the Audio In jacks of a tel...

Page 17: ...r on No disc inserted Tray open Tray closed Loading the Disc Power off 1 Open the battery compartment cover 2 Insert two AA batteries with each one oriented cor rectly 3 Close the cover Notes Do not mix alkaline and manganese batteries Do not mix old and new batteries ...

Page 18: ... the screen and the checksum in 3 of Fig e appears on the VFD Fig f At this time no buttons are available 6 For tray opening plug the AC cord into the AC out let 7 Turn the power on by pressing the power button and the tray will close HOW TO VERIFY THE FIRMWARE VERSION 1 After making sure that no disc is in unit turn the power on 2 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in th...

Page 19: ...shing after 0 5 sec Are the P CON H pulse outputted from the Pin 207 of IC601 Is the P CON switch circuit operated normally Q1002 Q1005 Q1006 IC1002 D1036 D1046 Is there leaking or short circuited primary component Replace the fuse See FLOW CHART No 3 The fuse blows out Check for lead or shor circuiting of primary circuit component Q1001 Q1003 D1001 D1002 D1004 D1005 D1011 T1001 C1003 C1005 etc Ch...

Page 20: ...he EV 5V line Check the FL 24V line Check R2001 IC2001 and their periphery Check or replace IC2001 and IC601 Check the power circuit D1017 Q2023 Q2024 and Q2025 Check that the fluorescent display tube is free from damages such as crack FLOW CHART NO 7 The key operation is disabled Is key switch contact and installation state normal Is the control voltage normally into the pins 3 4 7 8 9 10 of IC20...

Page 21: ...125 of IC601 Although SEARCH 1 SEARCH PLAY STILL PAUSE STOP POWER and OPEN CLOSE button Yes Yes Is 5V voltage supplied to the pin 3 terminal of remote control receiver Yes Yes No FLOW CHART NO 9 PON 12V is not outputted Is 12V voltage supplied at collector of Q1002 Is voltage of 12V sent out from the emitter of Q1002 Check the Q1002 periphery circuit Does the P CON switch circuit operate normally ...

Page 22: ...T 24V line Is voltage of 24V sent out from the anode of D1003 Check the D1003 periphery circuit Replace D1003 Check for load circuit short circuiting or leak Yes No Yes No Yes Yes No FLOW CHART NO 12 PON 3 3V 1 2 is not outputted Is 4V voltage supplied at emitter of Q1011 Is voltage of 3 3V sent out from collector of Q1011 Check the Q1011 periphery circuit Does the P CON switch circuit operate nor...

Page 23: ...from the pin 2 of IC1002 Check the IC1002 periphery circuit Is the signal from the pins 200 201 of IC601 inputted into the pins 1 2 of IC401 Is loading motor drive voltage output from the pins 9 10 of IC401 Is the loading motor drive voltage applied to the terminal of loading motor Check for mechanism and gear engagement and breakage Check the secondary circuit AT 5V line Check for load circuit sh...

Page 24: ...IC101 Checking of symptom Is 5V voltage applied to the emitter of Q101 and Q102 Is the 5V voltage supplied to the pin 12 DVD and pin 20 CD of pickup terminal Check the connection of optical pickup cable If it is normal replace the optical pickup Is the focus control signal outputted to the pin 115 of IC201 Is the focus control signal from the pin 115 of IC201 inputted into the pin 6 of IC401 Is th...

Page 25: ...e peripheral circuit of JK1401 from the pin 33 of IC1402 CN701 7PIN IC1402 4PIN CVBS CN701 5PIN IC1402 6PIN S Y CN701 9PIN IC1402 2PIN S C Are the video signals shown above input into each pins of IC1402 Are the video signals outputted to each pins of IC1402 Are the video signals outputted to the specific output terminal Are the composite video signals outputted to the VIDEO OUT terminal JK1403 Ar...

Page 26: ...and Q1204 Check the peripheral circuit of AUDIO DAC IC801 AUDIO AMP IC1201 and audio mute Q1201 Q1202 Q1203 and Q1204 circuit Check the line between each pins of main unit connector CN701 and each pins of IC1201 Check the line between each pins of main unit connector CN701 and each pins of Q1203 and Q1204 CN701 13PIN IC1201 2PIN FL CN701 15PIN IC1201 6PIN FR CN701 16PIN Q1203 Q1204 BASE AMUTE CN70...

Page 27: ...L Fig No REMOVE UNHOOK UNLOCK RELEASE UNPLUG DESOLDER Note 1 Top Cover D1 7 S 1 2 Front Assembly D2 CN505 2 L 1 Tray Panel 7 L 2 1 1 1 2 1 3 1 4 1 5 1 6 1 7 3 Top Bracket D2 4 S 2 4 Jack CBA D3 3 S 3 5 DVD Mecha Assembly D4 3 S 4 CN501 CN701 1 Top Cover 8 VCR Chasis Unit 6 DVD Main CBA Unit 5 DVD Mecha Assembly 2 Front Assembly 9 Deck Assembly 4 Jack CBA 3 Top Bracket 7 Rear Panel 10 Main CBA 13 D...

Page 28: ...id damage of pickup follow next procedures 2 1 Slide the pickup unit as shown in Fig D5 2 2 Short the three short lands of FPC cable with sol der before removing the FFC cable CN101 from it If you disconnect the FFC cable CN101 the laser diode of pickup will be destroyed Fig D5 2 3 Disconnect Connector CN401 Remove three Screws S 5 and lift the DVD Main CBA Unit Fig D5 CAUTION 3 When reassembling ...

Page 29: ...embly 6 DVD Main CBA Unit CN401 S 5 S 5 S 5 View for B Pickup Unit C B Short the three short lands by soldering View for C Slide View for A OR Short the three short lands by soldering A Fig D5 S 7 S 7 S 6 7 Rear Panel Fig D6 S 9 S 9 S 9 S 8 S 8 S 8 8 VCR Chassis Unit Fig D7 ...

Page 30: ...der BOTTOM VIEW From FE Head From Cylinder Assembly From AC Head Assembly Lead with red stripe Lead with white stripe Lead with white stripe From Capstan Motor Assembly Lead connections of Deck Assembly and Main CBA LD SW Pin Hole Hole Shaft Cam Gear 10 Main CBA 9 Deck Assembly 10 Main CBA SW507 LD SW Pin Desolder Fig D8 ...

Page 31: ... Length approximately 50mm Straightened portion approximately 35mm Tray Top Cover 1 3 4 2 HOW TO MANUAL EJECT 1 Remove the Top Case 2 Make a tool from a paper clip etc length approxi mately 50 mm maximum diameter approximately 3 mm as shown below 3 Insert the tool into the manual eject hole on the DVD Mecha Then push it until the tray is ejected ...

Page 32: ...er 3 S 5 8 8 Loading Motor Assembly T DM1 DM7 Desolder LDG Belt 2 S 6 9 9 AC Head Assembly T DM1 DM7 S 7 10 2 Tape Guide Assembly T DM1 DM8 P 2 11 10 Door Opener B T DM1 DM8 L 1 L 2 12 11 Pinch Arm B T DM1 DM8 P 3 13 12 Pinch Arm A Assembly T DM1 DM8 14 14 FE Head T DM1 DM9 S 8 15 15 Prism T DM1 DM9 S 9 16 2 Slider Shaft T DM10 S 10 L 3 17 16 C Drive Lever L T DM10 18 16 C Drive Lever R T DM10 19 ...

Page 33: ...eck Exploded Views for lubrication In case of some models the Cleaner Lever Assembly is not used 33 2 25 M Brake T Assembly T DM1 DM16 P 6 34 2 25 M Brake S Assembly T DM1 DM16 P 7 35 34 Tension Lever Sub Assembly T DM1 DM16 36 35 T Lever Holder T DM1 DM16 L 6 37 33 M Gear T DM1 DM16 C 6 38 2 15 Sensor Gear T DM1 DM16 C 7 39 33 Reel T T DM1 DM16 40 35 Reel S T DM1 DM16 41 31 35 Moving Guide S Prep...

Page 34: ...2 2 3 14 13 11 10 12 7 46 8 29 40 38 37 39 42 41 43 9 33 15 35 36 34 Fig DM1 Top View Fig DM2 Bottom View 31 19 32 24 25 27 26 23 28 21 30 20 22 ...

Page 35: ...ng the locking tab as shown in the right slide and pull up the right side on 2 to release Pin A and Pin B from the slots A Then remove Pin C and Pin D on 2 from the slots B as shown 1 2 A Fig DM4 3 4 5 6 S 3 S 2 S 4 P 1 Fig DM5 7 46 L 8 A View for A S 5 Fig DM6 Desolder from bottom Lead with Blue Stripe Type B 46 L 9 47 Type A ...

Page 36: ...12 are in the grooves of 28 as shown 11 13 12 A 10 L 1 P 3 Adj Screw P 2 L 2 View for A Fig DM8 14 15 S 9 S 8 Fig DM9 17 16 18 S 10 L 3 After removing the Screw S 10 while pressing the Locking Tab L 3 remove 16 Fig DM10 8 8 9 S 7 S 6 LDG Belt A View for A Fig DM7 Desolder from bottom Lead with White Stripe ...

Page 37: ...2 2 6 19 S 11 Cap Belt Fig DM11 20 C 1 A 21 Portions A Portions A View for A Portions A on 21 must be set in the slot on 20 as shown Fig DM12 ...

Page 38: ... of 30 Position of Mode Lever when installed Pin of 34 Fig DM14 23 P 4 C 3 P 4 28 28 23 When installing 23 install the spring P 4 to 28 as shown in the left figure and then install 23 while pressing the spring P 4 to the direction of the arrow in the left figure and confirming that the position of the spring P 4 is placed as shown in the left figure Pin on bottom of 23 Pin on 22 Position of pin on...

Page 39: ...2 2 8 32 30 29 L 5 P 5 31 Refer to the Alignment Section Page 2 3 1 Fig DM15 L 6 P 7 P 6 C 6 34 40 37 35 39 33 36 turn turn turn 38 C 7 Fig DM16 41 42 43 L 7 Fig DM17 45 44 Slide Fig DM18 ...

Page 40: ...e mechanical or electrical parts Alignment points in Eject Position Alignment 1 Loading Arm S and T Assembly Install Loading Arm S and T Assembly so that their triangle marks point to each other as shown in Fig AL2 Alignment 2 Mode Gear Keeping the two triangles pointing at each other install the Loading Arm T Assembly so that the last tooth of the gear meets the most inside teeth of the Mode Gear...

Page 41: ...stall the Rack Assembly so that the first tooth on the gear of the Rack Assembly meets the first groove on the Cam Gear A as shown in Fig AL4 Cam Gear A First tooth First groove on the Cam Gear A Alignment 3 Top View Gear on Rack Assembly Fig AL4 ...

Page 42: ...e Dual trace with 10 1 probe V Range 0 001 50V Div F Range DC AC 20MHz 2 Alignment Tape MH 1 Head Switching Position Adjust ment Purpose To determine the Head Switching point during playback Symptom of Misadjustment May cause Head Switching noise or vertical jitter in the picture Reference Notes Play back the Alignment tape and adjust VR501 so that the V sync front edge of the CH1 video output wav...

Page 43: ...ecial Driver No 7099028 FIXTURE AND TAPE FOR ADJUSTMENT How To Use The Fixtures And Tape Item No Name Part No Adjustment 1 Alignment Tape 7099046 I Head Switching Point I Tape Interchangeability Alignment 2 Special Driver 7099028 I Guide Roller ...

Page 44: ...t the Moving guide preparations are in the Eject Position 4 Turn the LDG Belt in the appropriate direction shown in Fig M1 until the Moving guide prepara tions come to the Eject Position Stop turning when the preparations begin clicking or can not be moved further However the tape will be left wound around the cylinder 5 Turn the LDG Belt in the appropriate direction con tinuously and the cassette...

Page 45: ...e X value and envelope Not good Do the final tape traveling test to see that the tape runs normally in play mode with out creasing or slacking Completion Not good OK OK OK Not good Not good OK Flowchart of Alignment for tape traveling 1 A 1 A 1 B 1 C 1 C 1 D 1 D 1 B 1 C 1 B 1 C 1 A 1 Tape Interchangeability Algnment Note To do these alignment procedures make sure that the Tracking Control Circuit ...

Page 46: ...ion of the Audio Control Erase Head Symptom of Misalignment If the Horizontal Position of the Audio Control Erase Head is not properly aligned maximum envelope can not be obtained at the Neutral position of the Tracking Control Circuit 1 Connect the oscilloscope to TP301 C PB and TP303 CTL on the Main CBA Use TP302 RF SW as a trigger 2 Play back the Gray Scale of the Alignment Tape MH 1 and confir...

Page 47: ...uide Roller 2 Refer to Fig M3 so that the waveform looks like the one shown in Fig M9 4 If the envelope is as shown in Fig M8 adjust the height of Guide Roller 3 Refer to Fig M3 so that the waveform looks like the one shown in Fig M9 5 When Guide Rollers 2 and 3 Refer to Fig M3 are aligned properly there is no envelope drop either at the beginning or end of track as shown in Fig M9 Note Upon compl...

Page 48: ...e refer to Deck Exploded Views B73 Recording Model only h Hours Check I Change Deck Periodic Service Schedule Ref No Part Name 1 000 h 2 000 h 3 000 h 4 000 h B2 Cylinder Assembly I I B3 Loading Motor Assembly I B8 Pulley Assembly I I B27 Tension Lever Sub Assembly I I B31 AC Head Assembly I B573 B574 Reel S Reel T I B37 Capstan Motor I I B52 Cap Belt I I B73 FE Head I B133 Idler Assembly I I B410...

Page 49: ...rd material but since it is very thin avoid cleaning it vertically 2 Wait for the cleaned part to dry thoroughly before operating the unit 3 Do not reuse a stained head cleaning stick or a stained chamois cloth Cleaning of Audio Control Head Clean the head with a cotton swab Procedure 1 Remove the top cabinet 2 Dip the cotton swab in 90 isopropyl alcohol and clean the audio control head Be careful...

Page 50: ...L022 2L022 2L036 2L035 2B52 2L022 F1001 2L054 2L034 2L034 2L034 2L034 2L041 2L041 2L041 2L041 2L041 A2 2L041 2L041 A B Main CBA 002 003 Sensor CBA Sensor CBA 2B1 See Electrical Parts List for parts with this mark Some Ref Numbers are not in sequence 2B6 2B7 W011 A1X 2L054 Function CBA RM2001 A4 AC1001 2L062 2L031 2L031 2L031 003 2B1 2B6 2B7 These parts are supplied as a DECK PEDESTAL Kit only 2L03...

Page 51: ...e Chassis Assembly Top View Lubricating Point Chassis Assembly Bottom View Lubricating Point Some Ref Numbers are not in sequence Bottom Side Grease point Bottom Side Grease point View for A Grease point B516 B559 A B52 B507 B488 B551 B133 B568 B569 B513 B502 B570 B491 B565 B417 L1151 B525 B522 B31 L1406 B148 B521 B520 B416 B518 B564 B585 B487 B573 B574 B499 B27 B508 B414 B505 B572 B558 B557 B3 Ma...

Page 52: ...BLY which includes B359 CLEANER LEVER B360 CLEANER ROLLER B361 CL POST etc These types of B529 CLEANER ASSEMBLY are compatible and there is no problem when using either but it is recommended that you replace the assembly with the same type if possible Refer to Table 1 for details and the combination also refer to the mechanical parts list on page 3 2 1 Type B529 B359 B360 B361 CLEANER ASSEMBLY CLE...

Page 53: ...BLY B31 TS17447 AC HEAD B35 TS17448 TAPE GUIDE B37 TJ15981 CAPSTANMOTOR B52 TJ15161 CAP BELT B73 TS17499 FE HEAD SYMBOL NO P NO DESCRIPTION B74 TJ15163 PRISM B121 TJ15982 WORM B126 TJ15983 PULLEY B133 TJ15168 IDLER ASSEMBLY B148 TJ15984 TG CAP B300 TJ15985 CASSETTE DRIVE LEVER R B303 TJ15986 DOOR OPENER B347 TJ15987 GUIDE HOLDER A B354 TJ15988 SLIDER R B355 TJ15989 SLIDER L B359 TJ15103 CLEANER LE...

Page 54: ...M2 6X6 L1053 TJ15313 SCREW M2 6X8 L1151 TJ15236 SCREW M2 6X4 L1191 TJ15313 SCREW M2 6X8 L1321 TJ10176 SCREW M3X6 L1341 TE13298 SCREW M2 6X6 L1406 TJ15238 SCREW L1407 TJ15957 SCREW M2 6X10 L1450 TE12971 SCREW M2 6X5 L1461 TJ14061 SCREW M2 6X6 L1466 TJ14066 SCREW M2 6X6 L1467 TJ15958 SCREW M2 6X5 L1468 TJ15959 SCREW M1 7X12 001 TS17361 DVD MAIN CBA UNIT 002 TS17371 MCV CBA 003 TS17381 SENSOR CBA ACC...

Page 55: ...49 TC10112 SWITCHING DIODE 1SS133 T 77 D2001 TC10754 SWITCHING DIODE 1N4148M SYMBOL NO P NO DESCRIPTION D2003 TC10754 SWITCHING DIODE 1N4148M D2004 TC10754 SWITCHING DIODE 1N4148M D2005 TC10752 RECTIFIER DIODE 1N4005 D2006 TC10752 RECTIFIER DIODE 1N4005 D2007 TC10752 RECTIFIER DIODE 1N4005 IC301 TJ15132 IC LA71091M IC451 TC12511 IC LA72655M IC501 TC12521 IC M37768M6A 1C8GP IC751 TC12531 IC TC4053B...

Page 56: ...F1001 TE13223 FUSE 1A 250V FH1001 TE11084 FUSE HOLDER FH1002 TE11084 FUSE HOLDER FL2001 TE14801 V F D 20U29100SAN GP1001 TJ13894 GAP FNR G3 10D JK751 TE15131 JACK JK752 TE15132 JACK JK753 TE15181 JACK YELLOW JK754 TE15182 JACK WHITE JK755 TE15183 JACK RED JK756 TE15133 JACK JK1202 TE15134 JACK BLACK JK1401 TE14821 JACK JK1403 TE15135 JACK SYMBOL NO P NO DESCRIPTION RM2001 TC12331 REMOTE RECEIVER P...

Page 57: ...r voltage wattage etc Replacement parts that have these special safety char acteristics are identified in this manual and its supple ments electrical components having such fea tures are identified by the mark in the schematic diagram and the parts list Before replacing any of these compo nents read the parts list in this manual carefully The use of substitute replacement parts that do not have th...

Page 58: ...ginal function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Mode SP 6 Voltage indications for PLAY modes on the schematics...

Page 59: ...EAD VIDEO L 1 HEAD VIDEO IN AUDIO IN R AUDIO IN L FRONT VIDEO L 2 HEAD VIDEO R 2 HEAD Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD M DRUM MOTOR PG SENSOR MAIN CBA DECK ASSEMBLY SENSOR CBA FUNCTION CBA SENSOR CBA JACK CBA 1 2 3 4 5 6 7 8 9 10 TO WIRING DIAGRAM DVD SECTION TO DVD MAIN CBA UNIT CN501 TO DVD MAIN CBA UNIT CN701 Wiring Diagram P ON 1 8V P ON 1 8V EV 2 5V EV 2 5V P ON 5V P ON 5V GND GND GND GN...

Page 60: ...4 1 4 Main 1 5 Schematic Diagram Note When it is necessary to replace one or more of the following Diodes all three should be replaced D588 D589 D656 1 ...

Page 61: ...V x 10 5msec UPPER LOWER WF2 TP302 of Main CBA TP301 of Main CBA Note There are two types of tuner unit TU701 A and B These types are compatible and there is no problem when using either but it is recommended that you replace the unit with the same type if possible The following table shows the differences between types A andB 2 TYPE B TS17431 TYPE A TS17421 TU701 J306 J311 WIRE NU NU WIRE NU WIRE...

Page 62: ... power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail CAUTION FORCONTINUEDPROTECTIONAGAINSTFIREHAZARD REPLACE ONLY WITH THE SAMETYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol ...

Page 63: ...4 1 7 Main 4 5 Schematic Diagram ...

Page 64: ...4 1 8 Main 5 5 Schematic Diagram ...

Page 65: ...E WF1 WF3 WF6 SPDIF Pin 18 of CN1601 1V 0 2usec WF1 Pin 5 of CN1601 WF3 Pin 9 of CN1601 WF4 AUDIO L Pin 13 of CN1601 1V 0 5msec WF5 AUDIO R Pin 15 of CN1601 1V 0 5msec WF2 Pin 7 of CN1601 VIDEO Y 0 2V 20usec VIDEO CVBS 0 5V 20usec VIDEO C 0 2V 20usec Waveforms ...

Page 66: ...G a d g c b e f 1 3 2 4 5 DVD VCD PBC STANDBY A B REPEAT TRK CHP TITLE 7G 6G 5G 4G 3G 2G 1G a b c d e f g c d e f g c d e f g c d e f g c d e f g c d e f g h i a b a b a b a b a b FL2001 MATRIX CHART STANDBY TITLE CHP TRK CD V PBC DVD REPEAT A B 1 3 2 4 5 ...

Page 67: ...4 1 11 Jack Schematic Diagram Note When it is necessary to replace one or more of the following Diodes all four should be replaced D652 D653 D654 D655 2 ...

Page 68: ...to the AC power supply Otherwise it may cause some components in the power supply circuit to fail BECAUSE A HOT CHASSIS GROUND IS PRESENT INTHE POWER SUPPLY CIRCUIT AN ISOLATIONTRANSFORMER MUST BE USED ALSO IN ORDERTO HAVETHE ABILITYTO INCREASETHE INPUT SLOWLY WHENTROUBLESHOOTINGTHISTYPE POWER SUPPLY CIRCUIT AVARIABLE ISOLATIONTRANSFORMER IS REQUIRED CAUTION FORCONTINUEDPROTECTIONAGAINSTFIREHAZARD...

Page 69: ...ts in the power supply circuit to fail BECAUSE A HOT CHASSIS GROUND IS PRESENT INTHE POWER SUPPLY CIRCUIT AN ISOLATIONTRANSFORMER MUST BE USED ALSO IN ORDERTO HAVETHE ABILITYTO INCREASETHE INPUT SLOWLY WHENTROUBLESHOOTINGTHISTYPE POWER SUPPLY CIRCUIT AVARIABLE ISOLATIONTRANSFORMER IS REQUIRED CAUTION FORCONTINUEDPROTECTIONAGAINSTFIREHAZARD REPLACE ONLY WITHTHE SAME TYPE FUSE ATTENTION POUR UNE PRO...

Page 70: ...4 1 14 Function CBA Top View Function CBA Bottom View ...

Page 71: ...4 1 15 Jack CBA Top View Jack CBA Bottom View ...

Page 72: ... 19 PWRCON 20 FP STB 21 FP DIN 22 FP DOUT 23 FP CLK 24 CN501 VIDEO V 1 NU 2 VIDEO U 3 GND 4 VIDEO Y 5 A L MUTE 12 GND 11 GND 6 VIDEO CVBS 7 GND 8 VIDEO C 9 GND 10 CN701 EV 2 5V 3 25 26 OC KEY REMOTE2 CN3001 SW CBA M SLIDE MOTOR RELAY CBA 19 20 21 GND CD PD CD LD CD DVD 1 2 3 4 5 6 7 8 9 10 11 DETECTOR FS TS SPDIF 18 AUDIO L 13 A R MUTE 14 AUDIO R 15 A MUTE 16 AUDIO 5V 17 LOADING MOTOR CN301 1 GND ...

Page 73: ...4 1 17 DVD Main 1 4 Schematic Diagram ...

Page 74: ...4 1 18 DVD Main 2 4 Schematic Diagram ...

Page 75: ...4 1 19 DVD Main 3 4 Schematic Diagram ...

Page 76: ...4 1 20 DVD Main 4 4 Schematic Diagram ...

Page 77: ... DVD DVD H 93 DVD L D588 VCR 91 DVD L AL 5V SW507 LD SW TP510 MODE SW AL 5V D555 S LED A MUTE A MUTE 13 SERIAL DATA SERIAL DATA 12 Hi Fi H SW Hi Fi H SW 18 Hi Fi CS Hi Fi CS 8 Hi Fi NOR IN Hi Fi NOR IN 65 D REC H D REC H 62 D PB H D PB H 61 OUTPUT SELECT OUTPUT SELECT 100 INSEL ST SL INSEL ST SL 7 C SYNC C SYNC 21 D V SYNC D V SYNC 33 V ENV V ENV 70 C ROTA C ROTA 15 RF SW RF SW 17 TRICK H TRICK H ...

Page 78: ...REC VIDEO SIGNAL PB VIDEO SIGNAL MODE SP REC 13 88 89 90 91 42 30 31 31 30 CHARA MIX 6dB AMP ENV DET AGC AMP HPF TO SERVO SYSTEM CONTROL BLOCK DIAGRAM TO SERVO SYSTEM CONTROL BLOCK DIAGRAM CYLINDER ASSEMBLY R L RF SW RF SW 93 V ENV H A SW H A COMP H A COMP TP302 WF2 WF1 VIDEO L 2 HEAD VIDEO R 2 HEAD TP301 C PB BUFFER D V SYNC C SYNC BLUEBACK ON BLUEBACK ON BLUEBACK SW CTL SP LP SLP SP LP SLP C ROT...

Page 79: ...UDIO SIGNAL REC AUDIO SIGNAL Mode SP REC 16 11 12 D REC H D REC H REC EE PB A MUTE D PB H TO SERVO SYSTEM CONTROL BLOCK DIAGRAM FULL ERASE HEAD IC301 SIF A IN R F A IN L F A IN L R A IN R R A OUT R A OUT L N A OUT N A IN JK752 REAR A IN R REAR A IN L JK754 A IN L JK755 A IN R TO Hi Fi AUDIO BLOCK DIAGRAM TO DVD AUDIO BLOCK DIAGRAM DVD SECTION FRONT REAR IC751 OUTPUT SELECT DVD A L DVD A R CN651 CN...

Page 80: ...39 77 1 40 26 24 27 SIF A IN R R A IN L R N A OUT A IN R F A IN L F AGC AGC DET 49 MUTE A OUT L A OUT R N A IN Hi Fi H SW A MUTE Hi Fi NOR IN 51 ST SAP IN MODE OUT SERIAL DATA SERIAL CLK Hi Fi CS Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD Hi Fi A R 7 Hi Fi COM 8 Hi Fi A L 9 CN251 IC451 MTS SAP Hi Fi AUDIO PROCESS Hi Fi HEAD AMP REC AUDIO SIGNAL PB AUDIO SIGNAL Mode SP REC PILOT CANCEL Hi Fi Audio Block...

Page 81: ... D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide A V A V AC1001 F1001 1A 250V LINE FILTER L1001 D001 D004 BRIDGE RECTIFIER 2 4 Q001 Q1003 Q1008 8 7 1 2 3 4 IC1001 ERROR VOLTAGE DET HOT T001 Q055 Q052 Q056 IC1003 Q060 MAIN CBA IC1006 SHUNT REGULATOR REG F F HOT CIRCUIT BE CARE...

Page 82: ...TB FP DIN FP DOUT FP CLK GRID FIP SEGMENT FL2001 IC2001 DVD MAIN CBA UNIT FUNCTION CBA MAIN CBA FG CBA RELAY CBA FRONT PANEL CONTROL BLOCK DIAGRAMS DVD SECTION TREV TIN TOUT TFWD MUTE PS CD DVD CFE CAS STANDBY ADDRESS BUS DATA BUS CD DVD CFE CAS STANDBY 71 62 63 70 SCK 72 STDIO SEN SCK STDIO 13 14 16 3 4 FG SENSOR CN401 FP STB 21 21 FP DIN 22 22 FP DOUT 23 23 FP CLK 24 24 REMOTE2 26 26 FP STB 2 2 ...

Page 83: ...OCUS MOTOR DRIVE TRACKING MOTOR DRIVE LOADING MOTOR DRIVE SPINDLE MOTOR DRIVE POWER SAVE SLIDE MOTOR DRIVE LOADING MOTOR SPINDLE MOTOR SLIDE MOTOR M 5 21 2 1 23 26 25 27 22 24 4 67 115 114 118 117 DVD MAIN CBA UNIT FROM TO DVD SYSTEM CONTROL BLOCK DIAGRAM FROM TO DVD SIGNAL PROCESS BLOCK DIAGRAM SCK CD DVD TESTSG ARF NARF STDIO SEN 11 STANDBY TRAY IN 3 GND 5 TRAY OUT 4 TRAY IN TRAY OUT DAC1 DAC0 T...

Page 84: ...L VCO CPU INTERFACE VIDEO AUDIO INTERFACE DVD DEMODULATOR MEMORY MANAGER 172 168 166 164 160 158 151 149 82 TO DVD VIDEO BLOCK DIAGRAM BCA DATA VIDEO AUDIO SIGNAL DVD MAIN CBA UNIT FROM TO DVD SYSTEM CONTROL BLOCK DIAGRAM CPUDT0 NINT1 ADDRESS BUS DATA BUS NINT2 NINT1 NINT2 WAIT RE WEL CS1 RESET WAIT RE WEL CS1 RESET CPUDT7 30 22 17 9 44 37 CPUADR0 CPUADR17 2 5 6 36 35 34 47 OSCI1 X201 16 9344MHz O...

Page 85: ...RAS CAS 58 63 66 73 74 19 CS CS INTERNAL PERIPHERALS PORTS PROGRAMMABLE CPU INTERFACE CENTRAL COMMAND PORT FRONT END LINK INTERFACE ST20 ARBITER MEMORY CONTROLLER SDRAM ARBITER SHARED SDRAM INTERFACE I F VIDEO DECODER AUDIO DECODER CACHE SUBSYSTEM CPU VIDEO FILTERING OSD SP DECODER MIXING 4dB AMP 2dB AMP LPF DRIVER Y C CD FIFO SDRAM BLOCK MOVE DENC SPDIF PCM LRCLK PCM SCLK PCM DATA0 PCM BCK FROM D...

Page 86: ... 1 2 3 13 14 15 16 FROM DVD VIDEO BLOCK DIAGRAM SERIAL PORT SERIAL CONTROL 4X 8X OVERSAMPLING DIGITAL FILTER FUNCTION CONTROLLER ENPHANCED MULTI LEVEL DELTA SIGMA MODULATOR DAC LPF AMP L CH R CH LPF AMP DAC ZERO DETECT SYSTEM CLOCK 1 2 6 7 5 TO AUDIO BLOCK DIAGRAM VCR SECTION PCM BCK SPDIF PCM DATA0 PCM LRCLK ADAC MD ADAC MC ADAC ML PCM SCLK MAIN CBA DVD MAIN CBA UNIT AUDIO SIGNAL DATA AUDIO SIGNA...

Page 87: ...1 51V 1 98V 1 80V AU 3 20V 3 75V 3 40V AL 0 26V 0 65V 0 44V SS 4 51V 5 00V 5 00V GC 2 61V 3 19V 2 97V RS Note Note EJ RS Loading FWD LM FWD H LM REV L RS EJ Loading REV LM FWD L LM REV H Stop A Loading Stop B Unloading Note Symbol Loading Status EJ Eject CL Eject REW Reel SB REW Reel Stop B TL Stop B Brake Cancel FB Brake Cancel SF Stop A AU Stop A Play REC AL Play REC Still Slow SS Still Slow Cap...

Page 88: ...l 5 C DRIVE 37 PB CTL 10 C F R 11 H A SW 12 ROTA AT H Z H L L ST BL STILL FRAME ADVANCE STILL The first rise of RF SW after a rise in F AD signal Stop detection T2 Slow Tracking Value Acceleration Detection T1 Reversal Limit Value Fig 1 ...

Page 89: ...rnal Signal 5 C DRIVE 37 PB CTL 10 C F R 11 H A SW 12 ROTA STILL STILL AT ST BL Stop detection T2 Acceleration Detection T1 Slow Tracking Value Reversal Limit Value FRAME ADVANCE The first rise of RF SW after a rise in F AD signal Fig 2 ...

Page 90: ... FWD LD FWD LD REV LD REV LD REV 0 5S PIN NO CL EJ SB TL SB GC FB GC SS AL SS AU AU TL 74 LD SW CL GC 59 LM FWD M REV C DRIVE Z ON ON VCR 48 C F R DRUM ROTATION 60 P ON POWER OFF STOP PLAY RS FS STILL SLOW PLAY STOP PLAY 13 A MUTE H 62 D REC H 2 TV VCR 61 D PB L DISPLAY PAUSE SLOW AU RS AL AL AL SF SS AL AU AU AU SF FB SF SF AL AL 1 5S 2H 2 5S 4H 0 2S 0 1S EJ AL RS SF AU TL FB SS SB 0 2S 0 8S 0 3S...

Page 91: ...LD REV FF PIN NO SF FB TL AL GC FB GC SS AL SS AU AU TL 74 LD SW CL GC 59 LM FWD M REV C DRIVE Z ON ON VCR 48 C F R DRUM ROTATION 60 P ON STOP FF STOP REW STOP REC REC REC PAUSE STOP 13 A MUTE H 62 D REC H 2 TV VCR 61 D PB L DISPLAY PAUSE REC or PAUSE STOP EJECT STOP EJECT STOP EJECT AU FB FB AU SS GC RS AL AL SF FB TL SB CL EJ RS SS GC AL AU AU AU FB SF SF SF SF SF AU AL AL FB SF EJ AL RS SF AU T...

Page 92: ...2 LSW1 LM LM I o TL123 SP TP122 Tv TL122 0V 5V 0V Tray close Tray open Tray close Play Play Tray open Play 0V Eject key on 6V 2V 5V 0V Disc Rotation Eject key on 2V 2 0s 0V 6V 4 4s 1 2s 700ms 1 7s 0V DVD Section ...

Page 93: ...ULSE 22 GND GND 23 N U Not Used 24 OSDVss OSDVss 25 IN REC SW Recoding Safety SW Detect With Record tab L With out Record tab H H L 26 IN C VIDEO IN Composite Video Signal Input Slicer 27 IN VHOLD Condenser Connected Terminal Slicer 28 HLF LPF Connected Terminal Slicer 29 GND GND 30 OUT OSD BB OUT Composite Video Signal Output Blue Back 31 OUT OSD CHARA OUT Character Output Superimposed 32 OSDVcc ...

Page 94: ...usted Voltage A D 72 IN KEY 1 A D Key Data Signal 1 A D 73 IN KEY 2 A D Key Data Signal 2 A D 74 IN LD SW Deck Mode Position Detector Signal A D 75 IN ST S Tape Start Position Detector Signal A D 76 AVcc A D Converter Power Input Standard Voltage Input 77 FLDVCC FLDVcc 78 FLDVP GND 79 N U Not Used 80 N U Not Used 81 N U Not Used 82 OUT REC LED REC LED Signal Output H L 83 OUT REC LED REC LED Signa...

Page 95: ...EY 1 Segment Output Key Souce 1 8 Out b Key 2 Segment Output Key Souce 2 9 Out c Key 3 Segment Output Key Souce 3 10 Out d Key 4 Segment Output Key Souce 4 11 Out e Segment Output 12 In f 13 In g 14 Out h 15 VEE Pull Down Level 16 Out i Segment Output 17 Out 7G Grid Output 18 6G 19 5G 20 4G 21 3G 22 2G 23 1G 24 VDD Power Supply 25 VSS GND 26 In OSC Oscillator Input 27 Out DOUT Serial Data Output 2...

Page 96: ...E6 C 2SC1815 BL TPE2 2SC1815 Y TPE2 2SC1815 GR TPE2 2SC3331 T U 2SC2120 Y TPE2 KTC3203 Y KTC3202 Y KRC110M AT BA1L3Z T KTC3205 Y BN1L3Z P KRA110M KTA1273 Y E C B E C B 2SC536NF NG NPA AT A K C E LTV 817 B C F MID 32A22 PT204 6B 12 G D S 2SK2662 KIA78R33PI PQ3RD13 1A 1 4 8 5 NJM4558D KIA4558P 28 15 14 PT6315 S PT6315 S TP 1 R A K KIA431 AT 1 2 3 4 PQ018EF01SZ 34 18 17 MM1567AJ 1 81 80 31 100 50 30 ...

Page 97: ...DV PF2U DV PF2U DV PF2U Digital Media Division Tokai No 9206E TK ...

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