Aiwa HV-MC90 Service Manual Download

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TABLE OF CONTENTS

SPECIFICATIONS ................................................................... 3

ACCESSORIES LIST .............................................................. 4

DISASSEMBLY INSTRUCTIONS ............................................ 5

SERVICE POSITION ............................................................... 6

VCR TEST TAPE INTERCHANGEABILITY TABLE ............... 7

ELECTRICAL MAIN PARTS LIST ................................... 8 ~ 15

TRANSISTOR ILLUSTRATION ............................................. 16

WIRE HARNESS DIAGRAM ................................................. 17

BLOCK DIAGRAM ........................................................ 18 ~ 21

SCHEMATIC DIAGRAM

1. POWER ............................................................................. 22

2. AUDIO/VIDEO ................................................................... 23

3. SYSTEM CONTROL ......................................................... 24

WIRING

1. MAIN C.B .......................................................................... 25

WAVEFORM

AUDIO/VIDEO SECTION ...................................................... 26

SYSTEM CONTROL SECTION ............................................ 27

VOLTAGE CHART

1. POWER/NICAM SECTION ............................................... 28

2. AUDIO/VIDEO SECTION .................................................. 28

3. SYSTEM CONTROL ......................................................... 29

ADJUSTMENT ....................................................................... 30

IC BLOCK DIAGRAM ............................................................ 31

IC DESCRIPTION .......................................................... 32 ~ 34

ELECTRICAL TROUBLESHOOTING ........................... 35 ~ 47

MECHANICAL EXPLODED VIEW 1/1 .................................. 48

MECHANICAL MAIN PARTS LIST 1/1 ........................... 49,50

MECHANISM EXPLODED VIEW 1/3 .................................... 51

MECHANISM MAIN PARTS LIST 1/3 ................................... 52

MECHANISM EXPLODED VIEW 2/3 .................................... 53

MECHANISM MAIN PARTS LIST 2/3 ................................... 54

MECHANISM EXPLODED VIEW 3/3 .................................... 55

MECHANISM MAIN PARTS LIST 3/3 ................................... 56

OTHER PARTS LIST ............................................................. 57

DECK MECHANISM PARTS LOCATIONS

Top View ................................................................................. 58

Bottom View ........................................................................... 58

DECK MECHANISM DISASSEMBLY

1. Drum Assembly ................................................................ 59

2. Plate Assembly Top .......................................................... 61

3. Holder Assembly CST ...................................................... 61

4. Guide CST ....................................................................... 61

5. Bracket Side (L)/Bracket Assembly Door ......................... 61

6. Arm Assembly F/L ............................................................ 61

7. Lever Assembly S/W ........................................................ 61

8. Arm Assembly Cleaner ..................................................... 62

9. Head F/E .......................................................................... 62

10. Base Assembly A/C Head ............................................... 62

11. Brake Assembly S ........................................................... 63

12. Brake Assembly T ........................................................... 63

13. Arm Assembly Tension .................................................... 63

14. Reel S & Reel T .............................................................. 63

15. Support CST ................................................................... 64

16. Base Assembly P4 .......................................................... 64

17. Opener Lid ...................................................................... 64

18. Arm Assembly T/up ......................................................... 64

19. Arm Assembly Pinch ....................................................... 64

20. Belt Capstan/Motor Capstan ........................................... 65

21.Clutch Assembly D33-Y ................................................... 65

22. Lever F/R ........................................................................ 65

23. Gear H-Up/D-K or

Gear Up/D-K ................................................................... 65

24. Bracket Assembly Jog ..................................................... 66

25. Guide Rack F/L, Gear Rack F/L ...................................... 66

26. Brake Assembly Capstan ................................................ 66

27. Gear Drive/Gear Cam/Gear Connector .......................... 67

28. Bracket Assembly L/D Motor ........................................... 67

29. Gear Sector ..................................................................... 68

30. Base Tension/Plate Slider/Lever Tension ........................ 68

31. Gear Assembly P3/Gear Assembly P2 ........................... 69

32. Base Assembly P3/Base Assembly P2 ........................... 69

33. Arm Assembly Idler or Arm assembly Idler Jog ............... 69

DECK MECHANISM ADJUSTMENT

Tools and Fixtures for Service ................................................ 70

1. Mechanism Alignment Position Check .............................. 71

2. Preparation for Adjustment ............................................... 72

3. Checking Torque ............................................................... 72

4. Guide Roller Height Adjustment ........................................ 73

4-1. Preliminary Adjustment ................................................. 73

4-2. Precise Adjustment ....................................................... 73

5. Audio/Control (A/C) Head Adjustment ............................... 74

5-1. Preliminary Adjustment ................................................. 74

5-2. Confirm that the Tape Passes smoothly between

the Take-up Guide and Pinch Roller ............................ 75

5-3. Precise Adjustment (Azimuth Adjustment) .................... 75

6. X-Value Adjustment ........................................................... 75

7. Adjustment after Replacing Drum Assembly

(Video Heads) .................................................................... 76

8. Check the Tape Travel after Reassembling

Deck Assembly ................................................................... 76

8-1. Checking Audio and RF Locking Time

during Playback and after CUE or REV ....................... 76

8-2. Check for Tape Curling or Jamming .............................. 76

MAINTENANCE/INSPECTION PROCEDURE

1. Check before starting Repairs .......................................... 77

2. Required Maintenance ...................................................... 78

3. Scheduled Maintenance ................................................... 78

4. Supplies Required for Inspection and Maintenance ......... 78

5. Maintenance Procedure .................................................... 78

5-1. Cleaning ........................................................................ 78

5-2. Greasing ....................................................................... 79

MECHANISM TROUBLESHOOTING GUIDE

1. Deck Mechanism ...................................................... 80 ~ 82

2. Front Loading Mechanism ........................................ 83 ~ 84

Summary of Contents for HV-MC90

Page 1: ...SERVICE MANUAL D A T A BASIC VIDEO MECHANISM D33Y1 2HD PAL 6721RF0412A VIDEO CASSETTE RECORDER HV MC90 S M Code No 09 019 358 4N1 KE SIMPLE 2 A part of contents is adequate Re issuing is under request ...

Page 2: ...y T up 64 19 Arm Assembly Pinch 64 20 Belt Capstan Motor Capstan 65 21 Clutch Assembly D33 Y 65 22 Lever F R 65 23 Gear H Up D K or Gear Up D K 65 24 Bracket Assembly Jog 66 25 Guide Rack F L Gear Rack F L 66 26 Brake Assembly Capstan 66 27 Gear Drive Gear Cam Gear Connector 67 28 Bracket Assembly L D Motor 67 29 Gear Sector 68 30 Base Tension Plate Slider Lever Tension 68 31 Gear Assembly P3 Gear...

Page 3: ...ax with T 210 tape EP 10 hours 30 minutes max with T 210 tape Tape speed PAL MESECAM SP 23 39 mm s LP 11 69 mm s NTSC SP 33 35 mm s LP 16 67 mm s EP 11 12 mm s Rewind time Approx 3 min with E 180 tspe Video input 1 0 Vp p 75 ohm unbalanced Video output 1 0 Vp p 75 ohm unbalanced Horizontal resolution 240 lines SP mode Video S N 43 dB SP mode Audio track 1 track Normal sound Audio input 6 dBm more ...

Page 4: ...re parts for service and will be stocked at the spare parts centers Components marked X and R are not designated as spare parts for after sales service and will not be stocked at the spare parts centers UNIT NAME C REF NO PARTS NO PARTS NAME SUFFIX MODEL 4 ACCESSORIES PARTS LIST 1 1 HV MC90 KEJC O 1 S8 35R P00 66W INSTRUCTION ASSY A O 2 S7 11R 2P0 36A RC UNIT P8 CLA112TW HA7IA A O 3 S8 50R CAA 260...

Page 5: ...he Main C B 2 Disconnect theACE head FF cable from the connector P3D02 on the Main C B 3 Remove 6 screws A Fig 2 DISASSEMBLY INSTRUCTIONS 1 1 4 Main C B Removal see Fig 3 1 Remove 2 screws B holding the panel assy distri butor 2 Release 5 tabs and then simultaneously lift the panel assem bly distributor and Main C B to remove them Fig 3 PANEL FRONT TAB FF CABLE P3D02 FF CABLE PMD01 A A A PANEL DIS...

Page 6: ...ve status Insert a spacer as shown below The service position can be set in the stable status without any defective contact Location Install spacers at locations A and B MAIN C B D33 MECHANISM SPARSER 60mm MAIN C B D33 MECHA SPARSER REAR PANEL A B Top View CYLINDER HEAD CLEANER ...

Page 7: ... kHz CH 1B 2 NTSC Stairsteps 1 kHz SP No Changed NTSC Color bar 1 kHz EP CH 1B 4 2 No Changed CH 1B 1 NTSC Stairsteps 7 kHz SP CH 1B 4 NTSC Color bar 1 kHz EP No Changed CH 1B 3 NTSC Color bar No sound SP HiFi 400 Hz PAL Stairsteps 1 kHz SP CH 2 2 3 CH 2 4 PAL Color bar 1 kHz LP CH 2 1 PAL Stairsteps 6 kHz SP No Changed CH 2 3 PAL Color bar No sound SP HiFi400 Hz No Changed PB Y Level General elec...

Page 8: ...A MAIN O C 312 87 015 681 080 CAP E 10 16V A MAIN X C 313 SC Q10 32K 409 CAP 0 01UF 50V A MAIN X C 314 SC Q33 32K 409 CAP 0 033UF 50V A MAIN O C 315 87 015 684 080 CAP E 47 16V A MAIN O C 317 87 016 088 040 CAP E 220 6 3V A MAIN X C 318 SC N15 10K 518 CAP 150P 50V A MAIN X C 319 SC K10 4AK 945 CAP CER 0 1UF 50V A MAIN O C 320 87 015 681 080 CAP E 10 16V A MAIN X C 321 SC X47 00K 408 CAP 47P 50V A ...

Page 9: ... MAIN X C 542 SC N68 10K 518 CAP 680P 50V A MAIN X C 543 SC N33 30K 518 CAP 0 033UF 50V A MAIN X C 544 SC Q47 32K 409 CAP 0 047UF 50V A MAIN X C 545 SC N33 30K 518 CAP 0 033UF 50V A MAIN X C 551 SC Q33 32K 409 CAP 0 033UF 50V A MAIN X C 552 SC N10 30F 678 CAP 0 01 16V A MAIN X C 555 SC K10 4AK 945 CAP CER 0 1UF 50V A HV MC90 KEJC MAIN X C 556 SC N10 30F 678 CAP 0 01 16V A MAIN X C 557 SC N10 30F 6...

Page 10: ...000 GF120 07S TS LGC 7P SP A MAIN O PML01 S6 30R 2S0 11A CONN 2P A MAIN O PW 101 S5 612 92B 000 GP390 LGC 3P STRAIG P A MAIN S Q 152 ST R22 030 9AF TR SRA2203 A MAIN S Q 153 ST R32 050 9AB TR KTC3205 TP Y A MAIN O Q 155 ST R12 730 9AA TR KTA1273 TP Y A MAIN O Q 156 ST R53 430 9BA TR 2SC5343 L A MAIN O Q 301 ST R53 440 9AA TR 2SC5344Y A MAIN O Q 302 ST R12 730 9AA TR KTA1273 TP Y A MAIN S Q 303 ST ...

Page 11: ... X R 515 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X R 521 SR D12 01F 608 RES 1 2K 1 6W A MAIN X R 522 SR D10 01F 608 RES 1 0K 1 6W A MAIN X R 523 SR D33 01F 608 RES 3 3K 1 6W A MAIN X R 527 SR D47 01F 608 RES 4 7K 1 6W A MAIN X R 528 SR D10 01F 608 RES 1 0K 1 6W A MAIN X R 529 SR D47 01F 608 RES 4 7K 1 6W A MAIN X R 531 SR D10 02F 608 RES 10K 1 6W A HV MC90 KEJC MAIN X R 534 SR D10 04F 608 RES 1...

Page 12: ...02 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 103 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 104 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 105 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 106 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 107 S8 740 00T 000 WIRE COPPER 0 6 ROLL A HV MC90 KEJC MAIN X W 108 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 109 S8 740 00T 000 WIRE COPPER ...

Page 13: ... X W 351 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 352 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 353 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 354 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 355 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 356 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 357 S8 740 00T 000 WIRE COPPER 0 6 ROLL A HV MC90 KEJC MAIN X W 358 S8 740 00T 000 WIRE C...

Page 14: ... X W 533 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 534 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 535 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 536 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 537 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 538 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 539 S8 740 00T 000 WIRE COPPER 0 6 ROLL A HV MC90 KEJC MAIN X W 540 S8 740 00T 000 WIRE C...

Page 15: ... MAIN X W 5A3 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A4 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A5 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A6 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A7 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A8 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5A9 S8 740 00T 000 WIRE COPPER 0 6 ROLL A MAIN X W 5C1 S8 740 00T 000 WIRE COPPER 0 ...

Page 16: ... 16 TRNSISTOR ILLUSTRATION 1 1 SRA2203 SRC1203 E C B E C B E C B 2SA1980 2SC5343 2SC5344 KTA1273 KTC3205 ...

Page 17: ...4 5 6 7 8 1 2 3 4 5 6 CTL CTL A E A E A REC A PB 1 2 3 4 5 6 1 2 3 SP PB CH1 SP REC SPPB CH2 1 2 3 1 2 3 4 5 GND MODE S1 MODE S2 MODE S3 MODE S4 1 2 3 4 5 1 2 GND FULL ERASE 1 2 DRUM MOTOR CAPSTAN MOTOR MS501 MODE SW FULL ERASE HEAD CYL HEAD MAIN C B ACE HEAD PMD01 PMD01 PMC01 PMC01 P3D02 P3D02 MS501 P3D03 P3D03 1 2 LD LD 1 2 LOADING MOTOR PML01 PML01 P3D01 P3D01 ...

Page 18: ...V 13VA TO A V 5 0A TO SYS A V 5 0V TO SYS A V 5 3VA FROM SYS P CTL H BD101 LINE FILTER BLOCK C101 L102 C102 DRIVE S W BLOCK IC101 C109 D103 R103 R109 R125 R126 C135 RECTIFIER SMOOTHING C116 D106 L103 C117 5V REG BLOCK Q153 R153 R159 ZD153 C156 C153 5V S W BLOCK Q155 R156 R157 C154 D157 PWR CTL BLOCK Q156 R161 FEED BACK BLOCK R116 R117 R118 R119 R120 R121 C114 Q152 SW RECTIFIER SMOOTHING D109 C120 ...

Page 19: ...62 69 63 81 89 84 IC301 HA118717F VIDEO AUDIO PROCESSOR 79 78 22 73 71 75 52 56 21 26 24 23 18 19 50 60 58 55 54 35 46 D V SYNC Y CCD C CCD CLOCK Drive FBC Video ALC LPF PB AMP SP CH1 DATA CLOCK V H SW V ENV PB CH2 PB CH1 Serial Cont interface X tal VCO OSC TRAP FM AGC P EQ G EQ D LIM Y LPF Main De Empf DEMO S LPF 2M LPF ACC CTL Trap fh Trap HIFI Trap C LPF DEALY MIX AMP SQUEL CH CLEAR SYNC CLAMP ...

Page 20: ... PROCESSOR 7 DET REC AMP PB EQ AMP 4 2 VCA AMP JK3M1 AUDIO IN 11 AUDIO ERASE HEAD FULL ERASE HEAD SW SW 5V REC H Q304 Q306 Q307 BIAS OSC SW Q302 Q303 FL301 Q301 5V REC H TO SYSTEM CONTROL SECTION TO SYSTEM CONTROL SECTION AUDIO A IN OUT 1 MD3M1 MODULATOR AUDIO PB SIGNAL AUDIO REC SIGNAL ...

Page 21: ...CTION TO LOADING MOTOR TO CTL HEAD TO DRUM MOTOR MOTOR DRIVE RESET PG ADJ TSOP2838WE1 REMOTE SENSOR TO POWER SECTION TO AUDIO VIDEO SECTION SW5T10 SW5T13 SW5T1 SW5T3 SW5T6 NTSC P B P3D02 CTL CTL TO CAPSTAN MOTOR 214 3BA SYSTEM CONTROL u COM ...

Page 22: ...und NOTES Warning NOTES Parts that are shaded are critical NOTES With respect to risk of fire or NOTES electricial shock TO AUDIO VIDEO SECTION TO SYSTEM CONTROL SECTION TO SYSTEM CONTROL SECTION MAIN POWER SECTION C B AC INPUT SRA2203 22uH 22uH 1N5822 PHOTO 680 470pF 5 6K L C129 0 022u HOT GND HOT CIRCUIT ...

Page 23: ...ECTION TO POWER SECTION TO SYSTEM CONTROL SECTION To CYL HEADS To ACE HEADS To FULL ERASE HEAD TV 1 4 1 7 VIDEO AUDIO PROCESSOR L310 100uH 3 7 2 7 4 4 3 4 2 4 6 7 7 7 SRC1203 SRA2203 2SA1980G 2SC5343 2SC5344Y 2SC5343 R306 2 2K 5 7 C3M3 0 01u MODULATOR 2SA1980G BUFFER 4 7 WAVEFORM AUDIO PB SIGNAL AUDIO REC SIGNAL PB Y SIGNAL PB CHROMA SIGNAL PB VIDEO SIGNAL REC Y SIGNAL REC CHROMA SIGNAL REC VIDEO ...

Page 24: ...DEO SECTION TO POWER SECTION MAIN SYSTEM CONTROL SECTION C B MODE SW To CAPSTAN MOTOR To LOADING MOTOR To DRUM MOTOR TO AUDIO VIDEO SECTION 560uH MOTOR DRIVE 220 TOH 30M05G1 TSOP2838WE1 REMOTE SENSOR PG ADJ 214 3BA SYSTEM CONTROL u COM RESET SRC1203 SRC1203 SG260 SG260 8 8 8 11 9 11 7 8 6 11 5 11 10 11 11 11 4 8 2 8 3 8 1 8 1 11 2 11 3 11 4 11 5 8 7 11 6 8 ...

Page 25: ...L REC SW5T10 SYSYEM SW5T11 SW5T12 SW5T13 OPR STOP EJECT POWER STANDBY ON POWER AUTO REPEAT PAL PLAY MESECAM REC NTSC3 58 LP EP NTSC4 43 STAND BY NTSC P B MAIN C B 1 3 4 2 1 3 4 2 12 1 BR BL BLU BRN AC200 240V 50Hz 1 2 4 5 6 4 3 2 12 11 10 9 8 7 1 4 3 2 E C B E C B E C B B C E 1 3 1 3 5 MODE SW E C B E C B 3 1 1 3 1 2 E C B E C B E C B E C B E C B E C B E C B E C B 2 1 RF CTL V H S 10 11 12 13 14 1...

Page 26: ...c DIV PB REC 3 58MHz X TAL IN IC301 Pin 78 100mV 5msec DIV PB PB RF out IC301 Pin 86 87 88 89 500mV 2msec DIV SP REC REC RF IC301 Pin 58 60 200mV 20msec DIV VV EE from 1H CCD Pin 58 to 1H CCD Pin 60 IC301 Pin 1 0V 20msec DIV VV EE C SYNC OUT IC301 Pin 500mV 10msecDIV VV EE VIDEO OUT IC301 Pin 54 200mV 20msec DIV PB C OUT IC301 Pin 100mV 0 2msec DIV REC PB 2fsc WAVEFORMS 1 2 AUDIO VIDEO SECTION 26 ...

Page 27: ...in 27 QUE REV IC501 Pin 31 REC IC501 Pin 32 REC IC501 Pin 39 REC PB IC501 Pin 54 REC PB IC501 Pin 38 REC PB IC501 Pin 37 PB IC501 Pin 40 REC PB 27 2 3 4 8 7 5 9 6 1 WAVEFORMS 2 2 SYSTEM CONTROL SECTION 24 96 31 100 97 85 86 89 93 ...

Page 28: ...5 5 87 2 1 2 3 8 2 5 2 5 28 2 8 2 8 48 0 0 68 0 0 88 2 1 2 3 9 2 5 2 5 29 1 9 1 9 49 0 0 69 2 5 2 5 89 2 1 2 3 10 2 5 2 5 30 2 8 2 8 50 70 2 5 2 5 90 5 1 5 1 11 2 5 2 5 31 51 71 2 1 2 1 91 2 1 2 3 12 5 5 32 52 72 2 2 2 2 92 2 1 2 3 13 1 6 2 1 33 53 2 8 2 8 73 2 1 2 1 93 2 1 2 3 14 1 6 2 1 34 54 1 9 1 9 74 2 7 94 2 1 2 3 15 2 3 2 3 35 2 7 2 7 55 2 1 2 1 75 2 1 2 1 95 0 1 4 16 0 36 5 1 5 1 56 2 8 2 ...

Page 29: ...14 0 5 14 0 88 2 58 2 58 9 29 49 5 17 5 17 69 5 2 1 27 89 2 58 2 58 10 30 0 0 50 0 0 70 5 2 2 92 90 2 58 2 58 11 5 17 5 17 31 0 0 51 0 0 71 5 2 2 51 91 12 5 17 5 17 32 5 31 5 31 52 5 15 5 15 72 5 2 1 73 92 5 2 5 2 13 0 0 33 0 0 53 5 15 5 15 73 93 14 5 2 5 2 34 5 31 5 31 54 3 99 3 99 74 94 0 0 15 35 5 31 5 31 55 0 4 92 75 95 16 0 0 36 0 0 56 2 80 2 80 76 96 17 37 5 17 5 17 57 2 38 2 38 77 0 0 97 18...

Page 30: ... the ART is lighting after pressing the A TR or A TR and adjust the X Value b Connect CH 1 terminal of oscilloscope to H SW and CH 2 terminal to Video Out Jack of the unit c Trigger the complex Video signal of CH2 to CH 1 H SW and adjust VR501 so that the distancefrom A B head selection point of H SW signal to the starting point of Vertical synchronized signal is 416µsec 32µsec Reference 1 PG adju...

Page 31: ...T WAKE UP CONTROL CIRCUIT TIMING CONTROL CIRCUIT SOFT SWITCHING DRIVE CIRCUIT PLL VCO 8 DIVIDER OUTPUT DRIVE CIRCUIT UPPER SIDE SATURATE PREVENTION CONTROL OUTPUT DRIVE CIRCUIT VREG 5V FG OUT C1 C2 PC OUT VCO IN CX VC FC 1kΩ 200Ω 200Ω 200Ω PG IN PG IN PG OUT1 PG OUT2 LD IN LD IN VREF LD OUT L VCC W OUT V OUT U OUT VCC MCOM U IN V IN W IN GND RF LD OUT L GND 7 5kΩ VREG ...

Page 32: ...t connected GND Not connected Not connected Not connected Not connected Not connected Not connected GND 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 17 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 DFG MON DPG MON CFG MON CTL MON OSD ENA OSD CLOCK OSD DATA DRUM PWM CAP PWM VCC X TAL1 X TAL2 VSS OSC2 OSC1 RESET IC A H SW V H SW IIC CLK IIC DATA C ROTARY H AMP SW D V SYN...

Page 33: ... A MUTE H LD LD I LIMIT REC H CAP ADJ DRUM ADJ R C OPTION NC PWR FAIL SUP SENSOR T UP SENSOR CST TAB H NTSC H AVDD2 A VREF KEY RTN 1 KEY RTN 0 PG ADJ MESECAM DET H V ENV AVSSW2 CTL DLY CTL CTL CIL IN CTL OUT1 O O O O I O O I I I I I I I I I O I O I O Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected IC DESCRIPTION 1 1 µPD784927GF 214 3B...

Page 34: ...e I O Description 34 CTL OUT2 VREFC AVSS1 AVDD1 CFG CFG AMP OUT CFG AMP IN DPG DFG S REEL SENSOR T REEL SENSOR C SYNC 89 90 91 92 93 94 95 96 97 98 99 100 O I O I I I I I I IC DESCRIPTION 1 1 µPD784927GF 214 3BA 3 3 ...

Page 35: ...Is there DC voltage at the IC101 Pin 4 Is there about 2 5V at the IC103 Vref Is the D106 normal Check the Main PCB 5 3VA 5 0V Line short Replace the F101 Use the same Fuse Replace the BD101 Replace the R101 Is Vcc about 15 19V permittable at the IC101 Pin 4 Check or Replace the D103 Replace the IC102 Replace the IC103 Replace the D106 NO YES YES YES YES YES YES YES YES NO NO NO NO NO NO NO ...

Page 36: ...es 5 3VA work normally Check whether 5 3VA is out of order YES NO NO Is the D151 D153 normal Replace the D151 153 Check or Replace the Motor Vcc YES YES No 12VA Does 13VA work normally Check whether 13VA is out of order YES NO NO 7 Power Circuit SMPS 2 No 13VA 3 No 12VA ELECTRICAL TROUBLESHOOTING 2 13 ...

Page 37: ... 5 5V put into the Q153 Q155 Base Does the 13VA Line work normally Check or Replace the Q153 Q155 YES YES NO No 5V Is the Q156 Base H Is 5 3VA put into the Q153 Q155 collector Check the Power Control YES YES NO NO 7 Power Circuit SMPS 4 No 5V 1 2 ELECTRICAL TROUBLESHOOTING 3 13 ...

Page 38: ...Do the DFG Pulses appear at the IC502 Pin 8 Check the IC502 and the Drum Motor Ass y Aren t the foil patterns and the Components between IC501 Pin 97 and IC502 Pin 8 short Replace the IC501 Check Power Refer to 3 No 12VA of Power section Do the Drum PWM Pulses appear at the IC501 Pin 9 Aren t the foil patterns and the Components between IC501 Pin 9 and PMD01 Pin 1 2 short Do the DFG Pulses appear ...

Page 39: ...n 4 short Does the CFG signal come into the IC501 Pin 93 Aren t the foil patterns and Components between IC501 Pin 10 and PMD01 Pin 4 short 2 SERVO CIRCUIT 3 When the Capstan Motor doesn t run NO NO NO YES YES YES YES When the Capstan Motor doesn t run Does 12VA appear at the PMC01 Replace the IC501 YES NO NO YES Refer to SMPS CAPSTAN 12Volt Trouble Shooting Aren t the foil patterns and component ...

Page 40: ... IC301 Pin 52 Does the Video signal appear at the Emitter terminal of the Q3M1 Check the 5V Line Power Circuit Is I2 C BUS signal applied to the IC301 Pins 62 63 Check C330 AGC Replace the IC301 Is there 13VA on the plus terminal of the C3M5 Replace the Q3M1 Check the 13VA Line Power Circuit Check the System Circuit Refer to SYSTEM I2 C BUS CHECK Trouble Shooting YES YES YES YES YES NO NO NO NO NO...

Page 41: ...Pin 24 Check the V H S W level Replace the IC301 Refer to SYSTEM I2 C BUS CHECK Trouble Shooting Is the V H S W signal applied to the IC301 Pin81 Is V H S W H about 4 5V at the IC301 Pin 81 Clean the Drum Check the path of the Y Luminance RF signal Check the path of the Y Luminance RF signal Does the Y Luminance RF signal appear at the IC301 Pin 18 Is the Y Luminance Video waveform showed up at th...

Page 42: ...t the IC301 Pin 71 75 Check the line of the 5 3V Line Power Circuit Replace the X301 or the X302 Check the Color Pass Check the C341 Replace the IC301 Does the X301 4 43MHZ or X302 3 58MHZ oscillate Check the circuit of the IC301 Pins 60 58 35 Does the Color signal appear at the IC301 Pin55 Replace the IC301 NO YES YES NO NO NO YES ELECTRICAL TROUBLESHOOTING 8 13 ...

Page 43: ...EC H Q303 Base IC501 Pin 55 Replace the IC301 Check the line of the 5 3V Line Power Circuit Check PB Mode Is the REC H signal about 4V applied to the Q303 Base Check the circuit of the IC301 Pins 86 87 88 89 Check REC Luminance Pass Color Pass Does PB Mdoe operate normally Does the REC RF signal appear at the IC301 Pins 87 88 Check the Drum Drum Connector YES YES YES YES YES NO NO NO NO NO NO YES ...

Page 44: ...C501 Pin 51 Audio Mute H Check the circuit line of the 5V Line Power Circuit Check the IC501 Pin 27 CLK 28 Data Line Check the connecting state between the P3D02 Pin 6 and A C Head Is the Audio Mute H applied to the IC301 Pin 99 Check the IC501 Pin 55 YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO 2 No sound in PB MODE No sound in PB Mode No sound Is 5V applied to the IC301 Pin 96 Does ...

Page 45: ...applied to the IC301 Pin 99 Check the IC501 Pin 55 Audio Mute H Replace the FL301 or the Q301 Check the line of the 5V Power Circuit Check the Audio R P E connector and Head Is Playback O K Does the Audio waveform appear at the IC301 Pin 4 Is 5V applied to the FL301 Pin 5 Is 3 0 4 5V applied to the Collector of the Q301 Does the Erase signal appear at the FL301 Pin 2 YES YES YES YES YES YES YES YE...

Page 46: ... the IC501 Pins 32 33 34 35 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 Pin 67 during inserting the CST Does the L signal appear at the IC501 Pin 53 during inserting the CST Does 6 2V occur at the IC502 Pin 15 duri...

Page 47: ...g KEY doesn t working Is 5VA applied to the IC501 Pin 14 Does LED display change when a function button is pressed Refer to SMPS 5 3VA Trouble Shooting Replace the defective switches YES NO NO ELECTRICAL TROUBLESHOOTING 13 13 ...

Page 48: ... 48 MECHANICAL EXPLODED VIEW 1 1 260 452 330 323 300 250 462 462 457 457 457 457 457 457 A00 320 457 457 275 LED502 A43 283 280 284 HD3M1 ...

Page 49: ...he spare parts centers UNIT NAME C REF NO PARTS NO PARTS NAME SUFFIX MODEL 49 MECHANICAL PARTS LIST 1 1 HV MC90 KEJC O 250 S1 10R 012 8U0 CASE TOP A X 260 S2 10R 002 3F0 FRAME MAIN A O 275 S9 30R 010 2A0 HOLDER LED A X 280 S7 20R F15 9A0 PANEL FRONT A O 283 S5 80R V00 6U0 DOOR CST CLA112TW A O 284 S4 426 81A 000 SPR DOOR A O 300 S4 10R CHD 01A POWER CORD A O 320 PANEL DISTRIBUTOR A O 323 S1 11R 00...

Page 50: ...Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange GM Metallic Green YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue GL Light Green HT Transparent Gray HM Metallic Gray NH Champagne Gold M Wood Pattern ...

Page 51: ... 51 MECHANISM EXPLODED VIEW 1 3 101 426 103 117 104 105 100 110 115 116 112 113 114 032 109 108 426 A22 A23 A21 A24 107 106 ...

Page 52: ...SSIS ASSY D33Y A O 100 S3 01R 003 2A0 PLATE ASSY TOP A O 101 S8 10R 006 8A0 BRACKET SIDE L A X 103 S9 30R 016 2A0 HOLDER SIDE L A O 104 S9 74R 001 9A0 GUIDE CST A X 105 S9 30R 015 9A0 HOLDER CST A X 106 S9 30R 016 1A0 HOLDER SIDE R A X 107 S5 10R 002 4A0 LEVER STOPPER R A X 108 S8 10R 006 7A0 BRACKET SIDE R A X 109 S8 70R 000 2A0 OPENER DOOR A X 110 S2 60R 003 0A0 ARM F L L A X 112 S0 70R 000 1A0 ...

Page 53: ... 53 MECHANISM EXPLODED VIEW 2 3 401 002 505 001 023 024 032 406 406 406 028 504 014 012 504 017 013 022 015 401 401 007 006 A03 A01 009 025 026 027 A04 011 031 018 019 021 020 029 003 004 409 016 ...

Page 54: ... ASSY TENSION D 33K A O 012 S0 41R 000 3A0 BASE ASSY P2 A O 013 S0 41R 000 4A0 BASE ASSY P3 A O 014 S0 41R 000 7A0 BASE ASSY P4 A O 015 S8 70R 000 3A0 OPENER LID A O 016 S0 41R 000 5B0 BASE ASSY A C HEAD A O 017 S4 08R 000 1B0 REEL S A O 018 S9 70R 005 4A0 SPRING SB A O 019 S4 21R 000 3A0 BRAKE ASSY S A O 020 S9 70R 005 3A0 SPRING TB A O 021 S4 21R 000 4A0 BRAKE ASSY T A O 022 S5 238 33B 000 HEAD ...

Page 55: ... 55 MECHANISM EXPLODED VIEW 3 3 056 057 054 053 426 077 410 032 078 A12 067 066 065 A11 068 069 070 079 426 064 518 052 055 518 517 061 062 060 063 519 051 ...

Page 56: ...ACK F L A O 054 S4 70R 003 7A0 GEAR RACK F L A O 055 S4 70R 003 3A0 GEAR DRIVE A O 056 S4 70R 003 2B0 GEAR CAM A O 057 S4 70R 003 6B0 GEAR CONNECT A O 060 S5 10R 002 5B0 F R LEVER A O 061 S2 65R 000 3A0 CLUTCH ASSY D33K A O 062 S4 70R 005 8A0 GEAR UP D33K A O 063 S9 70R 005 1A0 SPRING UP D A O 064 S4 70R 003 4A0 GEAR SECTOR A X 065 S5 10R 001 6A0 LEVER P3 A X 066 S9 70R 004 6A0 SPRING L D A X 067 ...

Page 57: ...ed as spare parts for service and will be stocked at the spare parts centers Components marked X and R are not designated as spare parts for after sales service and will not be stocked at the spare parts centers UNIT NAME C REF NO PARTS NO PARTS NAME SUFFIX MODEL 57 OTHER PARTS LIST 1 1 HV MC90 KEJC X S2 920 53A 000 BAG SOFT VCP A X S5 340 50A 000 BATTERY A X S5 01R 343 0K0 BOARD ASSY CLA112TW NA7...

Page 58: ...2 2 3 4 5 Bracket Side L 1 Screw A 2 2 3 4 6 BracketAssembly Door 1 Screw A 2 2 3 4 5 6 7 ArmAssembly F L Chassis Hole A 2 2 3 4 5 8 LeverAssembly S W Chassis Hole A 2 9 ArmAssembly Cleaner Chassis Embossing A 3 10 Head F E 2 Hooks A 3 11 BaseAssemblyA C Head 1 Screw A 3 12 BrakeAssembly S Chassis Hole A 4 2 3 13 BrakeAssembly T Chassis Hole A 4 2 3 12 14 ArmAssembly Tension Chassis Hole A 4 2 3 1...

Page 59: ...ook the H1 on the back side of the Chassis and separate the Cap FPC 2 Remove three Screws S1 and lift up the Drum Assembly 3 Remove two Screws S2 and Separate the Stator of Drum Motor 4 Remove two Screws S3 and Separate the Rotor of Drum Motor from the Drum Sub Assembly 1 When reassembling Cap FPC two Holes of Drum FPC are inserted to the two Bosses of Holder FPC correctly Refer to Fig B 1 Fig A 1...

Page 60: ...Assembly F L Lever Assembly S W Bracket Side L H5 H3 Groove Guide CST Gear Rack F L Groove For Jog Shuttle Models H4 Bracket Assembly Door S4 S4 Arm F L Holder Assembly CST Lever Stopper R 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 61: ... the Guide CST in the direction of the arrow 5 Bracket Side L Fig A 2 4 Bracket Assembly Door Fig A 2 5 1 Remove the Screw S4 and disassemble the Bracket Side L in the front 2 Remove the Screw S4 and disassemble the Bracket Assembly Door in the front 6 Arm Assembly F L Fig A 2 6 1 Push the Arm Assembly F L to the left and lift up it 1 When reassembling confirm that the Gear A of the Arm F L and th...

Page 62: ...in the clockwise direction and lift up the Arm Assembly Cleaner 9 Head F E Fig A 3 2 1 Unhook the two Hooks H1 on the back side of the Chassis and lift up the Head F E 10 Base Assembly A C Head Fig A 3 3 1 Remove the Screw S5 and lift up the Base Assembly A C Head NOTE H1 Head F E Arm Assembly Cleaner A S5 Base Assembly A C Head For Jog Shuttle Models Fig A 3 Fig A 3 1 Fig A 3 3 Fig A 3 2 Spring L...

Page 63: ...Hold the C part shown above Fig A 4 3 and turn to the clockwise direction and then lift up theArmAssemblyTension 1 When reassembling be careful not to change the Spring with above No 11 12 Refer to Fig B 2 14 Reel S Fig A 4 4 Reel T Fig A 4 5 1 Lift up the Reel S and Reel T 1 When reassembling be careful not to change the Reel S and Reel T each other 2 Confirm two Slide Washers under the Reel S an...

Page 64: ...bossing of the Chassis in the counterclockwise direction and lift up the Base Assembly P4 17 Opener Lid Fig A 5 3 1 Break away the C Part of the Opener Lid from the Embossing of the Chassis in the Clockwise direction and lift up the Opener Lid 18 Arm Assembly T up Fig A 5 4 1 Just lift up the Arm Assembly T UP 1 When reassembling confirm the opener lid is placed on the Hook H1 of the Arm Assembly ...

Page 65: ...n 1 When reassembling Confirm the A B parts of Motor Capstan is located to the A B of the Chassis 21 Clutch Assembly D33 Y Fig A 6 3 1 Remove the Washer W1 and lift up the Clutch Assembly D33 Y 22 Lever F R Fig A 6 4 1 Unhook the H1 shown above Fig A 6 4 and lift up the Lever F R 1 When reassembling move the C part of the Lever F R up and down then confirm if it is returned to original position 23...

Page 66: ... lift up the Bracket Assembly Jog 25 Guide Rack F L Fig A 7 2 Gear Rack F L Fig A 7 3 1 Remove the Screw S4 and lift up the Guide Rack F L 2 Lift up the Gear Rack F L 26 Brake Assembly Capstan Fig A 7 4 4HD model option 1 Hook the Spring Capstan on the Hook H1 2 Unhook the Hook H2 and lift up the Brake Assembly Capstan Refer to Fig to the right 1 When reassembling confirm that the Hole A of the Br...

Page 67: ...ft up the Gear Cam 3 Lift up the Gear Connector 1 When reassembling confirm that the Hole A of the Gear Connector is aligned to the Hole A of the Chassis Fig A 8 3 2 When reassembling confirm that the Hole B of the Gear Cam is aligned to the Hole B of the Chassis Fig A 8 2 3 When reassembling confirm that the C part of the Gear Cam is aligned to the D part of the Gear Drive as shown Fig B 3 28 Bra...

Page 68: ... 2 Plate Slider Fig A 9 3 Lever Tension Fig A 9 4 1 Remove the Screw S4 and lift up the Base Tension 2 Lift up the Plate Slider 3 Hold the A Part of the Lever Tension and turn to the counterclockwise direction and then lift up the Lever Tension 1 When reassembling turn the Lever Tension to the clockwise direction in maximum 2 Push the plate slide right side to be guided by the shaft NOTE Fig A 9 1...

Page 69: ...0 4 1 Move the Base Assembly P3 in the direction of the arrow of the Chassis Hole A and push down the Base Assembly P3 2 Move the Base Assembly P2 in the direction of the arrow of the Chassis Hole B and push down the Base Assembly P2 33 Arm Assembly Idler or Arm Assembly Idler Jog Fig A 10 5 1 Unhook the Hook H3 and push down the Arm Assembly Idler Jog 1 Arm Assembly Idler is for Normal Models 2 A...

Page 70: ...0 50 0 300 250 200 150 50 0 100 ALIGNMENT TAPES FOR ADJUSTMENT Derivation No Mechanism Adjustment ltems FM Envelope A PAL SP LP 2 4 Head TTV P2L B PAL SP 2 Head TTV P2 C NTSC SP LP EP 2 4 Head TTV N1 TTN N12 D NTSC SP 2 Head TTV N2 Slantness Height Azimuth A commercially available tape A C Head TTV P1 TTV P1L TTV P2 TTV P2 TTV P2L TTV N1 TTV N12 TTV N2 TTV N2 TTV P1 TTV P2 TTV P2 TTV N1 TTV N12 TT...

Page 71: ...he Alignment 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 Mode S W Gear Cam Gear Drive A B L D Motor Assembly Gear Cam Hole Gear...

Page 72: ...Adaptor with the Torque Gauge affixed The Torque reading to measure occurs when the Tape abruptly changes direction from Fast Forward of Rewind Mode when quick bracking is applied to both Reels SRK VIDEO CASSETTE 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 SRK ...

Page 73: ...elope 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 OSCILLOSC...

Page 74: ...ignal 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 accurately over the A C Head without Tape Curling or Folding 3 If Folding or Curling is occured then adjust the Tilt Adjustment Screw C while the Tape is running to resemble Fig C 5 3 4 Reconfirm the Tape Path after...

Page 75: ...ly 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 Test Conditions Mechanism Condition Play an Alignment Tape Adjustment Point Connection Point Test ...

Page 76: ...iver Screw Driver Type 5mm Connection Point Test Conditions 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 ...

Page 77: ... on pinch roller 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 See the Greasing Page 79 for the sections to be lubricated and greased NOTE 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 an...

Page 78: ...tch 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 Otherwise the head may be damaged Thoroughly dry the head Then run the test tape If lsopropyl Alcohol remains on the video head the tape may be ...

Page 79: ...sembly F L U Groove 4 Arm Take up Rubbing Section 5 L D Motor Worm Wheel Part 6 Shaft 7 Arm Assembly F L of Buming Inside Hole 8 Reel S T Shaft G381 Yellow 9 Brake T Groove Guide Rail Gear Assembly Up D Gear Drive Gear Sector Gear Cam Press Cam Part Cam Part Gear Part Stopper Part Bracket Side L Bracket Assembly Door 1 4 5 7 6 3 2 1 Loading Path Inside Top side 2 Shaft 3 Gear Rack F L Moving Secti...

Page 80: ...d sensor Check syscon circuit NO YES YES YES NO 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 Pages 71 Is the normal voltage supplied to the Capstan Motor Vcc1 Vcc2 Does terminal voltage Vctl of Capstan Motor supply side more than 4V Check Servo Power Circuits Replace the Capstan Motor Does the Capstan Motor rotate Do the T ...

Page 81: ...tions page 71 Check spring Pinch Replace Drum Motor Check Servo Syscon Check the Syscon µ COM No cassette loading Insert the cassette Check Cassette Carry Assembly Is there variation for F L S W Output In Tape with REC Tab L H L In Tape without REC Tab L H L H Does the F L S W work normally Does the lever S W work normally Check Syscon Circuit Check Syscon Circuit Replace F L S W YES YES YES YES Y...

Page 82: ...sors ok Check Syscon Circuit Check Syscon Circuit Check Servo Syscon Does the Capstan Motor turn Is the terminal voltage of the Drum Motor more than 2 3V Replace the Drum Motor Is the Vcc voltage of the Drum Motor normal Check the clutch and the Idler Assembly YES YES YES YES YES YES YES YES NO NO NO NO NO Is the terminal voltage of Capstan Motor supplied more than 4V Replace the Capstan Motor Is ...

Page 83: ...oard 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 Mode switch location and syscon circuit Replace F L Switch YES NO YES NO NO Replace F L Switch NO NO Cassette will not eject Does the L D motor rotate in reverse Check L D Motor or Drive IC Replace lever Switch Does the Lever Switch work YES NO...

Page 84: ... Assembly F L Check the power of L D Motor Is the Holder Assembly Cassette assembled correctly Replace the Rear Rack F L Does the Gear 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 85: ...0251431 Printed in Singapore 2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111 ...

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