AIWA HV-MC90 Service Manual

HV-MC90

SIMPLE-2

KE

SERVICE MANUAL

VIDEO CASSETTE RECORDER

Apartofcontentsisadequate. Re-issuing is under request.

BASIC VIDEO MECHANISM : D33Y1-2HD/PAL(6721RF0412A)

S/M Code No. 09-019-358-4N1

DATA

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

-2-

SPECIFICATIONS

Video recording system Rotary 2 head helical scanning system Video head 2 heads Video signal system PAL/MESECAM color signal, 625 lines, 50 fields

NTSC color signal, 525 lines, 60 fields Usable cssettes VHS video cassettes Recording/playback time PAL/MESECAM

SP: 5 hours max. with E-300 tape.

LP: 10 hours max. with E-300 tape

NTSC

SP: 3 hours 30 minutes max. with T-210 tape (playback only)

LP: 7 hours max. 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 than 47 k ohm Audio output -6 dBms, less than 4.7 k ohm Operating temperature: 5 °C to 35 °C Power requirements 110 - 240 V AC, 50/60 Hz Power consumption 10 watts

TYP 3 watts (power save mode.) Dimensions 360 (W) x 270 (D) x 94.5 (H) mm Weight (141 /4 x 103/

Approx. 3.2 kg (7.26 lbs)

x 33/4 in)

4

• Design and specifications are subject to change without notice.

-3-

ACCESSORIES PARTS LIST -1/1

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

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 CABLE,COAXIAL 1200M/M A O 4 S8-51R-P00-03A CABLE ASSY,RF/SCART/RCA USI A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-4-

DISASSEMBLY INSTRUCTIONS -1/1

1. Top Case Removal

1) Remove 4 screws holding the top case.

2. Panel Front Removal (see Fig. 1)

1) Release 7 tabs, and then remove the panel front.

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 assembly, distributor and Main C.B. to remove them.

B

TAB

PANEL

DISTRIBUTOR

TAB

PANEL FRONT

TAB

Fig. 1

3. Mechanism Removal (see Fig. 2)

1) Disconnect the drum FF cable from the connector (PMD01) on the Main C.B.

2) Disconnect the ACE head FF cable from the connector (P3D02) on the Main C.B.

3) Remove 6 screws A .

FF CABLE

P3D02

A

PMD01

MAIN C.B

Fig. 3

A

FF CABLE

A

Fig. 2

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SERVICE POSITION -1/1

To set the mechanism to the service position in active status: Insert a spacer as shown below: The service position can be set in the stable status without any defective contact.

MAIN C.B

D33 MECHA

SPARSER

60mm

MAIN C.B

D33 MECHANISM

Location

Install spacers at locations (A) and (B).

REAR PANEL

SPARSER

A

CYLINDER

HEAD CLEANER

Top View

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B

VCR TEST TAPE INTERCHANGEABILITY TABLE -1/1

There are two types of the new allgnment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1)-(4) are recorded for the times and in the order shown below.

(1) : 8min. → (2) : 2min. → (3) : 5min. → (4) : 5min.

The TTV-MP1 (for M-PAL), TTV-MS1 (for MESECAM) and TTV-S1 (for SECAM) allgnment tapes have the same contents as the previous tapes.

Method

NTSC

Now in use TYPE

Model Contents *1

TTV-N1

TTV-NS1

TTV-N1E

TTV-NS6E

TTV-N2

TTV-N12 (SCV-1998)

TTV-N6 (TTV-N06T)

TTV-N7A

NTSC, Color bar, 1 kHz, SP

NTSC, Color bar, 1 kHz, EP

NTSC, Color bar, No sound, EP

NTSC, Stairsteps, 7 kHz, SP

NTSC, Color bar, 1 kHz, SP

NTSC, Mono scope, 7 kHz, SP

NTSC, Stairsteps, 1 kHz, SP, HiFi 400 Hz

New TYPE

Model Contents *1

CH-1B(2)

CH-1B(4) *2

CH-1B(1)

CH-1B(4)

CH-1B(3)

NTSC, Stairsteps, 1 kHz, SP

No Changed.

NTSC, Color bar, 1 kHz, EP

No Changed.

NTSC, Stairsteps, 7 kHz, SP

NTSC, Color bar, 1 kHz, EP

No Changed.

NTSC, Color bar, No sound SP, HiFi 400 Hz

Application

PB-Y Level/General electrical ADJ. Head ACE Height/Tilt ADJ.

For S-VHS (SQPB) check

Switching position ADJ.

For S-VHS (SQPB) check

Head ACE Azimuth ADJ.

FM Envelope ADJ. X-Value ADJ.

For total picture quality check (resolution, etc)

HiFi Audio PB Level ADJ.

Switching position ADJ. PB-Y Level/General electrical ADJ. Head ACE Height/Tilt ADJ.

Switching position. (LP Model) FM Envelope ADJ. (LP Model) X-Value ADJ. (LP Model)

HEAD ACE Azimuth ADJ. FM Envelope ADJ. (SP Model) X-Value ADJ. (SP Model)

For total picture quality check (resolution, etc)

HiFi Audio PB Level ADJ.

FM Filter ADJ.

PA L

TTV-P1

TTV-P1L

TTV-P2

TTV-P6 (TTV-N06T)

TTV-P7

TTV-P16

PAL, Color bar, 1 kHz, SP

PAL, Color bar, 1 kHz, LP

PAL, Stairsteps, 6 kHz, SP

PAL, Monoscope, 6 kHz, SP

PAL, Stairsteps, 1 kHz, SP, HiFi 1 kHz

PAL, Color bar, 400 Hz, SP, HiFi 1 kHz

CH-2 (2) * 3

CH-2 (4)

CH-2 (1)

CH-2 (3)

PAL, Stairsteps, 1 kHz, SP

PAL, Color bar, 1 kHz, LP

PAL, Stairsteps, 6 kHz, SP

No Changed.

PAL, Color bar, No sound SP, HiFi400 Hz

No Changed.

* 1. Described in the order of color format. video signal. linear audio. tape speed and Hi-Fi audio. * 2. Use CH-1B (1)-(3) with models used exclusively in the SP mode. * 3. Use CH-2 (3) and (4) when it is necessary to observe the chroma signal.

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ELECTRICAL PARTS LIST - 1/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN S BD 101 87-070-173-010 DIODE,S1WBA60 A MAIN O BD 3M1 S6-360-04C-000 COIL,BFS3550R2FD8 A MAIN ! O C 101 S2-408-8L0-000 CAP,E 0.1UF-2 A MAIN ! O C 102 S2-408-8L0-000 CAP,E 0.1UF-2 A MAIN ! O C 103 SC-E68-6CV-610 CAP,E 68UF-450V A MAIN ! O C 105 87-016-375-010 CAP,0.01UF-630V A MAIN ! O C 106 S6-240-87A-000 HIGH VOL 150P-1KV A MAIN O C 109 87-010-415-010 CAP,10M-50V A MAIN X C 110 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN O C 112 87-012-379-010 CAP,3300PF-400V A

MAIN O C 113 SC-G33-10U-510 CAP,CER 330PF-400V A MAIN X C 114 SC-Q47-32K-409 CAP,0.047UF-50V A MAIN O C 116 SC-E10-86F-6CM CAP,E 1000UF-16V M FM5 BU A MAIN O C 117 87-010-375-080 CAP,E 330-10V A MAIN O C 120 87-016-134-080 CAP,E 470UF-25V M FM A MAIN O C 121 SC-E33-7CH-618 CAP,E 330UF-25V A MAIN X C 127 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN X C 129 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN X C 135 SC-N47-10K-518 CAP,470P-50V A MAIN O C 153 87-015-681-080 CAP,E 10-16V A

HV-MC90 KEJC MAIN O C 154 87-015-681-080 CAP,E 10-16V A MAIN O C 156 87-015-698-080 CAP,E 4.7-50V A MAIN X C 301 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 302 87-010-552-040 CAP,E 22-16V A MAIN X C 303 SC-N12-20F-668 CAP,1200P-16V A MAIN O C 304 87-015-698-080 CAP,E 4.7-50V A MAIN X C 305 SC-N22-20F-668 CAP,2200P-16V A MAIN O C 306 87-015-698-080 CAP,E 4.7-50V A MAIN O C 307 87-015-681-080 CAP,E 10-16V A MAIN X C 310 SC-K10-4AK-945 CAP,CER 0.1UF-50V A

MAIN O C 311 87-010-552-040 CAP,E 22-16V 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

HV-MC90 KEJC MAIN X C 322 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN X C 323 SC-N10-40K-948 CAP,0.1UF-50V A MAIN O C 324 87-015-681-080 CAP,E 10-16V A MAIN X C 325 SC-N10-40K-948 CAP,0.1UF-50V A MAIN X C 326 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN O C 327 87-010-403-040 CAP,E 3.3-50V A MAIN O C 328 87-015-681-080 CAP,E 10-16V A MAIN O C 330 87-010-402-040 CAP,E 2.2-50V A MAIN X C 333 SC-N33-10K-518 CAP,330P-50V A MAIN X C 334 SC-N47-30K-948 CAP,0.047-50V A

MAIN O C 335 87-015-684-080 CAP,E 47-16V A MAIN X C 336 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 337 SC-N10-40K-948 CAP,0.1UF-50V A MAIN X C 338 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 339 SC-N10-40K-948 CAP,0.1UF-50V A MAIN X C 340 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 341 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 342 87-016-088-040 CAP,E 220-6.3V A MAIN X C 344 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN O C 345 87-015-698-080 CAP,E 4.7-50V A

HV-MC90 KEJC MAIN X C 346 SC-C05-00K-015 CAP,5P-50V A MAIN O C 347 87-015-698-080 CAP,E 4.7-50V A MAIN X C 348 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN X C 349 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN O C 350 87-015-695-080 CAP,E 1.0-50V A MAIN X C 351 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN O C 352 87-010-402-040 CAP,E 2.2-50V A MAIN X C 353 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 354 SC-Q22-32L-559 CAP,0.022UF-63V A MAIN O C 356 SC-E33-44K-638 CAP,E 0.33M-50V A

MAIN X C 357 SC-N33-30K-518 CAP,0.033UF-50V A MAIN O C 358 87-010-403-040 CAP,E 3.3-50V A MAIN O C 359 87-015-684-080 CAP,E 47-16V A MAIN X C 360 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 361 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 362 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 363 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 365 87-015-684-080 CAP,E 47-16V A MAIN O C 370 87-015-698-080 CAP,E 4.7-50V A MAIN X C 371 SC-N68-10K-518 CAP,680P-50V A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-8-

ELECTRICAL PARTS LIST - 2/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X C 391 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN X C 3M1 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 3M2 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 3M3 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 3M5 87-015-681-080 CAP,E 10-16V A MAIN O C 3M7 87-015-695-080 CAP,E 1.0-50V A MAIN O C 3M8 SC-E47-7CD-638 CAP,E 470UF-10V A MAIN X C 3N1 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN O C 3N2 87-015-681-080 CAP,E 10-16V A MAIN O C 3N3 87-015-681-080 CAP,E 10-16V A

MAIN X C 3N4 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN O C 500 87-016-088-040 CAP,E 220-6.3V A MAIN X C 501 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN O C 502 87-010-078-080 CAP,E 47M-6.3V A MAIN X C 503 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 505 87-016-088-040 CAP,E 220-6.3V A MAIN X C 506 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN X C 507 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 508 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 509 SC-N22-3AK-948 CAP,0.022UF 50V A

HV-MC90 KEJC MAIN O C 510 87-016-088-040 CAP,E 220-6.3V A MAIN O C 525 87-016-088-040 CAP,E 220-6.3V A MAIN O C 526 87-016-130-080 CAP,47-25V A MAIN X C 530 SC-N10-30F-678 CAP,0.01-16V A MAIN O C 531 87-016-088-040 CAP,E 220-6.3V A MAIN X C 532 SC-N10-10K-518 CAP,100P-50V A MAIN O C 533 87-010-402-040 CAP,E 2.2-50V A MAIN O C 534 87-015-695-080 CAP,E 1.0-50V A MAIN O C 535 87-015-695-080 CAP,E 1.0-50V A MAIN O C 536 87-015-695-080 CAP,E 1.0-50V A

MAIN X C 537 SC-N10-40K-948 CAP,0.1UF-50V A MAIN X C 538 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 540 SC-N33-30K-518 CAP,0.033UF-50V A 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-678 CAP,0.01-16V A MAIN X C 567 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 570 SC-C15-00K-415 CAP,15P-50V A MAIN X C 571 SC-C15-00K-415 CAP,15P-50V A MAIN X C 572 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN X C 574 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 575 SC-N10-20K-518 CAP,1000P-50V A MAIN X C 581 SC-N10-30F-678 CAP,0.01-16V A MAIN X C 582 SC-N10-30F-678 CAP,0.01-16V A

MAIN X C 584 SC-K10-4AK-945 CAP,CER 0.1UF-50V A MAIN O C 585 87-016-088-040 CAP,E 220-6.3V A MAIN O C 586 87-010-544-010 CAP,E 0.1-50V A MAIN O C 587 87-010-400-080 CAP,E 0.47-50V A MAIN X C 588 SC-N22-3AK-948 CAP,0.022UF 50V A MAIN X C 589 SC-N22-20F-668 CAP,2200P-16V A MAIN X C 590 SC-N22-20F-668 CAP,2200P-16V A MAIN O C 591 87-010-387-080 CAP,E 470UF-25V A MAIN O C 5R1 87-015-681-080 CAP,E 10-16V A MAIN O CS 501 S6-00R-DB0-04C SW,MPU10252MLB4 MIC A

HV-MC90 KEJC MAIN O D 102 87-357-529-310 DIODE,ERA22-10 A MAIN O D 103 SD-R18-020-9AA DIODE,ERA18-02KFRB A MAIN O D 104 87-020-465-080 DIODE,1SS133 A MAIN O D 106 SD-R15-822-0AA DIODE,1N5822 A MAIN O D 109 SD-R20-200-0AB DIODE,HER202 BK A MAIN O D 151 SD-R10-400-9AB DIODE,RL104 A MAIN X D 152 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN O D 153 SD-R10-400-9AB DIODE,RL104 A MAIN O D 157 87-020-465-080 DIODE,1SS133 A MAIN X D 501 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN O ES 501 S9-31R-001-6C0 HOLDER ASSY END(DI-CKD)LOCAL A MAIN O ES 502 S9-31R-001-6C0 HOLDER ASSY END(DI-CKD)LOCAL A MAIN ! O F 101 S5-850-11T-000 FUSE,1600MA 250V A MAIN ! O FH 01 S5-860-08B-000 HOLDER,FUSE CLIP A MAIN ! O FH 02 S5-860-08B-000 HOLDER,FUSE CLIP A MAIN O FL 301 S6-330-32N-000 COIL,BIAC OSC DEO-010 KSE A MAIN ! S IC 101 SI-PMG-SK0-01A IC,STR-G6351L A MAIN ! O IC 102 S5-00R-DB0-11A SENSOR,PHOTO KP1010 A MAIN O IC 103 SI-KE4-310-00A IC,KIA431 3P A MAIN S IC 301 SI-HI1-187-17B IC,HA118717F A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-9-

ELECTRICAL PARTS LIST - 3/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN S IC 501 SI-MCR-NE0-07B IC,UPD784927GF-214-3BA A MAIN S IC 502 SI-LNR-SA0-02A IC,LB11880 A MAIN O IC 504 SI-KE7-031-00A IC,KIA7031P A MAIN X J 301 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN O JK 3M1 S7-204-2A0-000 JACK,PIN (4PIN) A MAIN ! O L 102 S6-161-45H-000 FILTER SHT LFS2020V4-04350 A MAIN O L 103 S6-330-88G-000 COIL,CHOCK TP 5MM A MAIN O L 104 S6-330-88G-000 COIL,CHOCK TP 5MM A MAIN O L 301 87-005-208-080 COIL,100 A MAIN O L 303 87-A50-002-080 COIL,270U 2.3-3.4-5 A

MAIN O L 304 SL-R10-00J-0N5 COIL,100UH A MAIN O L 306 87-003-282-080 COIL,12 2.3-3.4-5 A MAIN O L 310 SL-R10-00J-0N5 COIL,100UH A MAIN O L 311 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 A MAIN O L 3M1 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 A MAIN O L 3M2 87-003-152-080 INDUCTOR,100M 2.3-3.4-5 A MAIN O L 3M3 SL-R10-00J-0N5 COIL,100UH A MAIN O L 3M4 SL-R10-00J-0N5 COIL,100UH A MAIN O L 3M5 SL-R10-00J-0N5 COIL,100UH A MAIN O L 501 87-005-208-080 COIL,100 A

HV-MC90 KEJC MAIN X L 502 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN O L 503 SL-R56-00K-035 COIL,560M A MAIN O LD 501 S9-31R-001-7C0 HOLDER ASSY LED(DI-CKD)LOCAL A MAIN O LED502 S3-01R-2U0-01A LED ASSY,TOH-30M05G1 A MAIN O MD 3M1 S7-04R-P00-2B0 MODULATOR,RUMP73655VL A MAIN O MS 501 S6-00R-PY0-01B SW,MMS00420ZMBO MIC A MAIN O P 3D01 S5-612-34Z-000 CONN,3P A MAIN O P 3D02 S6-30R-5S0-10A CONN,6P A MAIN O P 3D03 S5-612-51B-000 GB201-2P-TS-B(LGC) P A MAIN O PMC01 S6-30R-2P0-05C CONN,TMC-J08P-A1 8PIN 2MM A

MAIN O PMD01 S5-612-34V-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-R12-030-9AE TR,SRC1203 A

HV-MC90 KEJC MAIN O Q 304 ST-R19-800-9CA TR,2SA1980G A MAIN O Q 305 ST-R53-430-9BA TR,2SC5343-L A MAIN O Q 306 ST-R53-430-9BA TR,2SC5343-L A MAIN S Q 307 ST-R22-030-9AF TR,SRA2203 A MAIN O Q 3M1 ST-R19-800-9CA TR,2SA1980G A MAIN S Q 514 ST-R12-030-9AE TR,SRC1203 A MAIN S Q 515 ST-R12-030-9AE TR,SRC1203 A MAIN ! O R 101 S6-140-07A-000 RES,CEM 2.7/2W A MAIN X R 102 SR-D68-03F-608 RES,680K-1/6W A MAIN X R 103 SR-D04-72F-608 RES,47-1/6W A

MAIN X R 104 SR-S56-02K-619 RES,56K-2W A MAIN X R 106 SR-D68-03F-608 RES,680K-1/6W A MAIN O R 109 SR-S03-50K-619 RES,0.35-2W A MAIN X R 116 SR-D22-00F-608 RES,220-1/6W A MAIN X R 117 SR-D39-01F-608 RES,3.9K-1/6W A MAIN X R 118 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 119 SR-N33-01F-408 RES,3.3K-1/6W A MAIN X R 120 SR-N27-01F-408 RES,2.70K-1/6W A MAIN X R 121 SR-D18-00F-608 RES,180-1/6W A MAIN X R 125 SR-D56-01F-608 RES,5.6K-1/6W A

HV-MC90 KEJC MAIN X R 126 SR-D68-00F-608 RES,680-1/6W A MAIN X R 153 SR-D18-01F-608 RES,1.8K-1/6W A MAIN X R 156 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 157 SR-D47-00F-608 RES,470-1/6W A MAIN X R 159 SR-D47-02F-608 RES,47K-1/6W A MAIN X R 15T1 SR-D22-01F-608 RES,2.2K-1/6W A MAIN X R 161 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 301 SR-D33-03F-608 RES,330K-1/6W A MAIN X R 302 SR-D12-02F-608 RES,12K-1/6W A MAIN X R 303 SR-D18-00F-608 RES,180-1/6W A

MAIN X R 304 SR-D27-02F-608 RES,27K-1/6W A MAIN X R 305 SR-D18-02F-608 RES,18K-1/6W A MAIN X R 306 SR-D22-01F-608 RES,2.2K-1/6W A MAIN X R 308 SR-D04-72F-608 RES,47-1/6W A MAIN X R 309 SR-D15-01F-608 RES,1.5K-1/6W A MAIN X R 310 SR-D27-01F-608 RES,2.7K-1/6W A MAIN X R 311 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 312 SR-D47-02F-608 RES,47K-1/6W A MAIN X R 313 SR-D12-02F-608 RES,12K-1/6W A MAIN X R 314 SR-D47-01F-608 RES,4.7K-1/6W A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-10-

ELECTRICAL PARTS LIST - 4/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X R 315 SR-D27-01F-608 RES,2.7K-1/6W A MAIN X R 316 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 317 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 320 SR-D39-02F-608 RES,39K-1/6W A MAIN X R 321 SR-D12-02F-608 RES,12K-1/6W A MAIN X R 322 SR-D68-01F-608 RES,6.8K-1/6W A MAIN X R 324 SR-D22-01F-608 RES,2.2K-1/6W A MAIN X R 325 SR-D15-01F-608 RES,1.5K-1/6W A MAIN X R 327 SR-D33-01F-608 RES,3.3K-1/6W A MAIN X R 328 SR-D15-01F-608 RES,1.5K-1/6W A

MAIN X R 330 SR-D82-02F-608 RES,82K-1/6W A MAIN X R 332 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 333 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 334 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 336 SR-D75-00F-608 RES,750-1/6W A MAIN X R 338 SR-D27-00F-608 RES,270-1/6W A MAIN X R 340 SR-D02-21F-608 RES,2.2-1/6W A MAIN X R 341 SR-D02-21F-608 RES,2.2-1/6W A MAIN X R 342 SR-D33-01F-608 RES,3.3K-1/6W A MAIN X R 346 SR-D22-04F-608 RES,2.2M-1/6W A

HV-MC90 KEJC MAIN X R 3M1 SR-D33-01F-608 RES,3.3K-1/6W A MAIN X R 3M2 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 3M3 SR-D18-02F-608 RES,18K-1/6W A MAIN X R 3M4 SR-D07-52F-608 RES,75-1/6W A MAIN X R 3M5 SR-D56-00F-608 RES,560-1/6W A MAIN X R 3M6 SR-D56-00F-608 RES,560-1/6W A MAIN X R 3M7 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 3M8 SR-D08-22F-608 RES,82-1/6W A MAIN X R 504 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 505 SR-D10-01F-608 RES,1.0K-1/6W A

MAIN X R 506 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 511 SR-D10-01F-608 RES,1.0K-1/6W A MAIN 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,1.0-1/6W A MAIN X R 536 SR-D47-00F-608 RES,470-1/6W A MAIN X R 537 SR-D47-00F-608 RES,470-1/6W A MAIN X R 544 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 546 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 547 SR-D12-02F-608 RES,12K-1/6W A MAIN X R 548 SR-D10-03F-608 RES,100K-1/6W A MAIN X R 550 SR-D22-00F-608 RES,220-1/6W A MAIN X R 551 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 553 SR-D22-00F-608 RES,220-1/6W A

MAIN X R 555 SR-D22-00F-608 RES,220-1/6W A MAIN X R 556 SR-D22-02F-608 RES,22K-1/6W A MAIN X R 557 SR-D27-02F-608 RES,27K-1/6W A MAIN X R 558 SR-D22-02F-608 RES,22K-1/6W A MAIN X R 559 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 560 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 563 SR-D56-02F-608 RES,56K-1/6W A MAIN X R 564 SR-D27-02F-608 RES,27K-1/6W A MAIN X R 570 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 571 SR-D10-00F-608 RES,100-1/6W A

HV-MC90 KEJC MAIN X R 572 SR-D56-02F-608 RES,56K-1/6W A MAIN X R 573 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X R 575 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 576 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 577 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 578 SR-D47-01F-608 RES,4.7K-1/6W A MAIN X R 579 SR-D56-02F-608 RES,56K-1/6W A MAIN X R 580 SR-D02-22F-608 RES,22-1/6W A MAIN X R 581 SR-D68-02F-608 RES,68K-1/6W A MAIN X R 587 SR-D22-00F-608 RES,220-1/6W A

MAIN X R 588 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 589 SR-D56-01F-608 RES,5.6K-1/6W A MAIN X R 590 SR-D22-01F-608 RES,2.2K-1/6W A MAIN X R 591 SR-D47-00F-608 RES,470-1/6W A MAIN X R 592 SR-D56-03F-608 RES,560K-1/6W A MAIN O R 593 SR-S04-70K-619 RES,FIX O 0.47-2W A MAIN X R 597 SR-D10-03F-608 RES,100K-1/6W A MAIN X R 598 SR-D15-00F-608 RES,150-1/6W A MAIN X R 5B1 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 5C5 SR-D10-01F-608 RES,1.0K-1/6W A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-11-

ELECTRICAL PARTS LIST - 5/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X R 5C6 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 5C7 SR-D10-01F-608 RES,1.0K-1/6W A MAIN X R 5C9 SR-D10-02F-608 RES,10K-1/6W A MAIN X R 5E7 SR-D10-02F-608 RES,10K-1/6W A MAIN X R 5E8 SR-D10-02F-608 RES,10K-1/6W A MAIN X R 5P1 SR-D47-00F-608 RES,470-1/6W A MAIN X R 5P2 SR-D47-00F-608 RES,470-1/6W A MAIN X R 5P3 SR-D47-00F-608 RES,470-1/6W A MAIN X R 5P4 SR-D47-00F-608 RES,470-1/6W A MAIN X R 5P5 SR-D47-00F-608 RES,470-1/6W A

MAIN X R 5P6 SR-D47-00F-608 RES,470-1/6W A MAIN X R 5R1 SR-D33-00F-608 RES,330-1/6W A MAIN X R 5T1 SR-D18-01F-608 RES,1.8K-1/6W A MAIN X R 5T2 SR-D15-01F-608 RES,1.5K-1/6W A MAIN X R 5T3 SR-D22-01F-608 RES,2.2K-1/6W A MAIN X R 5T4 SR-D27-01F-608 RES,2.7K-1/6W A MAIN X R 5T5 SR-D39-01F-608 RES,3.9K-1/6W A MAIN X R 5T9 SR-D18-01F-608 RES,1.8K-1/6W A MAIN X R0 5T1 SR-D15-01F-608 RES,1.5K-1/6W A MAIN O RC 501 S7-12R-193-8GA REMOTE CONTROLLER RECEI A

HV-MC90 KEJC MAIN O RS 501 S5-00R-AB0-03A SNSR,SG-260 A MAIN O RS 502 S5-00R-AB0-03A SNSR,SG-260 A MAIN O SW 5T1 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T10 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T11 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T12 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T13 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T3 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T4 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN O SW 5T5 S5-621-3C0-000 SW,DETECTOR THVV951BAA A

MAIN O SW 5T6 S5-621-3C0-000 SW,DETECTOR THVV951BAA A MAIN ! O T 101 S4-201-5G0-000 TRANSFORMER,SJE-015G/SHT-015G A MAIN O VR 501 S6-130-32W-000 SFR,RH0638CJ5R(220K) A MAIN X W 101 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 102 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 0.6 ROLL A MAIN X W 110 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 111 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 112 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 113 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 114 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 115 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 116 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 117 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 118 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 119 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 120 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 121 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 122 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 123 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 124 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 125 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 126 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 127 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 128 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 129 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 130 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 131 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 132 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 301 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 302 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 303 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 304 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 305 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 306 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 307 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 309 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 310 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 312 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 313 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 314 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 315 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 316 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 317 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-12-

ELECTRICAL PARTS LIST - 6/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X W 318 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 319 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 320 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 321 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 322 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 323 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 324 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 325 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 326 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 327 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 328 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 329 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 330 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 331 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 332 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 333 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 334 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 335 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 336 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 337 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 338 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 339 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 340 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 341 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 342 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 343 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 344 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 345 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 346 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 347 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 348 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 349 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 350 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN 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,COPPER 0.6 ROLL A MAIN X W 359 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 360 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 361 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 362 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 363 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 364 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 365 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 366 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 367 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 368 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 369 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 370 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 371 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 372 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 373 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 374 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 375 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 376 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 377 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 378 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 379 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 380 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 381 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 382 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 383 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 384 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 385 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 386 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 387 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 388 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 389 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 390 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 391 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 392 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 393 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 394 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 395 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 396 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 397 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-13-

ELECTRICAL PARTS LIST - 7/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X W 3A1 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 501 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 502 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 503 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 504 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 505 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 506 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 507 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 508 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 509 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 510 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 511 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 512 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 513 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 514 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 515 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 516 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 517 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 518 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 519 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 520 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 521 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 522 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 523 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 524 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 525 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 526 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 527 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 528 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 529 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 530 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 531 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 532 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN 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,COPPER 0.6 ROLL A MAIN X W 541 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 542 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 543 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 544 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 545 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 546 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 547 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 548 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 549 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 550 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 551 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 552 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 553 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 554 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 555 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 556 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 557 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 558 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 560 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 561 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 562 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 563 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 564 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 565 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 566 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 567 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 568 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 569 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 570 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 571 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 572 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 573 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 574 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 575 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 576 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 577 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 578 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 579 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 580 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-14-

ELECTRICAL PARTS LIST - 8/8

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC MAIN X W 581 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 582 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 583 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 584 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 585 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 586 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 587 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 588 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 589 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 590 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 591 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 592 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 593 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 594 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 595 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 596 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 597 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 598 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 599 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5A1 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 5A2 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A 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 0.6 ROLL A MAIN X W 5C2 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 5C3 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C4 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C5 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C6 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C7 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C8 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5C9 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E1 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E2 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E3 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

HV-MC90 KEJC MAIN X W 5E4 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E5 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E6 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E7 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E8 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5E9 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5F1 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5F2 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5F3 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN X W 5F4 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A

MAIN X W 5F5 S8-740-00T-000 WIRE,COPPER 0.6 ROLL A MAIN O X 301 S2-02R-AJ0-7E0 VIB,XTAL H49U 4433783H A MAIN O X 302 S2-02R-AJ0-3E0 VIB,XTAL H49U 3579675H A MAIN O X 501 S2-02R-BL0-5E0 VIB,XTAL NTC AXIAL 16MHZ A MAIN O ZD 153 SD-Z56-000-9CB ZENER,MTZ5.6C A MAIN S ZD 508 SD-Z62-260-9CA ZENER,GDZJ6.2C 26MM A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-15-

TRNSISTOR ILLUSTRATION -1/1

E C B

SRA2203 SRC1203

E C B

2SA1980 2SC5343 2SC5344

E C B

KTA1273 KTC3205

-16-

WIRING HARNESS DIAGRAM -1/1

PMD01 PMD01

PG+

1

PG-

2

M.GND

3

MCOM

4

W

5

V

6

U

7

PMC01 PMC01

GND

1

MOTOR GND

2

I-LIMIT

3

CAP CONTROL

4

12VA

5

CFG

6

CAP REV "H"

7

5.3VA

8

1 2

DRUM

3 4

MOTOR

5 6 7

1 2 3 4

CAPSTAN

5

MOTOR

6 7 8

MAIN C.B

P3D02 P3D02

CTL(+)

1

CTL(-)

2

A/E(-)

3

A/E(+)

4

A.REC

5

A.PB

6

MS501

GND

1

MODE S1

2

MODE S2

3

MODE S3

4

MODE S4

5

P3D03 P3D03 1

GND

2

FULL ERASE12

P3D01 P3D01

SP PB CH1

1

SP REC

2 3

SPPB CH2

1 2 3

ACE

4

HEAD

5 6

1 2

MS501

3

MODE SW

4 5

FULL ERASE HEAD

CYL.

1 2

HEAD

3

PML01 PML01

12LD(+)

LD(-)

-17-

1

LOADING

2

MOTOR

BLOCK DIAGRAM -1/4 (POWER SECTION)

R101

C103

R106

R102

D153 D151

+

TO SYS

13VA(Cap)

NOTES : Symbol denotes AC ground.

Symbol denotes DC chassis ground.

F101

C112C113

HOT GND

4

3

2

6

4

7

8

10

11

3

1

2

IC102

KP1010

IC103

KIA431

BK

(BR)

WH

(BL)

PW101

AC INPUT

TO SYS

12VA(DRUM)

TO A/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,

L104, C121)

SNUBBER

BLOCK

(D102, R104,

C105, C106)

T101

TRANSFORMER

HOT CIRCUIT

-18-

BLOCK DIAGRAM - 2/4 (VIDEO SECTION)

¥ PB Mode

X302

3.58MHz

X301

4.43MHz

TO SYSTEM CONTROL SECTION

DATA

CLOCK

¥ REC Mode

TO SYSTEM CONTROL SECTION

PB CH2

FROM CYL.HEAD

PB CH1

V.H.SW

V.ENV

81

CONTROL

84

HEAD1 HEAD2

PB-AMP

86

SP CH2

PB-AMP

89

SP CH1

IC301

HA118717F VIDEO/AUDIO PROCESSOR

79 78

73 71 75

X-tal

VCO/OSC

CTL Trap

ACC

2M LPF

TRAP

fh Trap

HIFI Trap

FM AGC P.EQ G.EQ D LIM Y LPF

22

62 6963

Serial Cont

interface

C LPF DEALY

DEMO

S LPF

60 58 55 54 35

C-CCD

CLOCK Drive

Y-CCD

VCA

Main

De-Empf

1413

CCD LPF

L- DET

Main

Conv2

Main

Conv1

NL

De-eMPH

CLAMP

TO SYSTEM CONTROL SECTION

APC/ACC

DET

BDBPF

YNR NC

LPF

C.K

2126242318 19

SYNC SEP

Sharpness

CONTROL

+

SQUEL CH

Video ALC

MIX

AMP

CLEAR

SYNC

FBC

MD3M1 (MODULATOR)

46

44

39

42

52

51

50

56

D-V SYNC

C-SYNC

5

V.IN

JK3M01

TO SYSTEM CONTROL SECTION

VIDEO

OUT

:PB VIDEO SIGNAL :PB CHROMA SIGNAL :PB Y SIGNAL

D-V SYNC

TO SYSTEM CONTROL SECTION

DATA

CLOCK

35

60

58 6269 63 7371

IC301

46

44

39

42

52

51

1

C-CCD

CLOCK Drive

Y-CCD

6dB

AMP

ATT

-10dB

31

30 28 29 21 26 24 23 18 19 50 22 20 14 13 15

HA118717F VIDEO/AUDIO PROCESSOR

SQUEL CH

CLEAR

SYNC

FBC

Video ALC

VIDEO

AGC

ATT

-10dB

Y-LPF

AGC DET

LPF

APC/ACC

DET

SPFACC

CLAMP

Conv2

D.E.

YNR

CLAMP

Main

VCA

(-4dB)

C-LPF

NL Emph

SYNC

SEP

CCD

FBC ALC

LPF

L-DET

Emph

Main

FM

MOD

f/0DEV

Adjst

Serial Cont

interface

B.E C.K

LPF

MIX ATT

f0=1.68M

HPF

X302

3.58MHz

VCO/OSC

REC Trap

X-tal

TRAP

X301

4.43MHz

75

LPF

CONTROL

HEAD1 HEAD2

REC-AMP

SP CH2

VCA

REC-AMP

SP CH1

81

87

88

V.H.SW

TO SYSTEM CONTROL SECTION

TO

REC

CYL.HEAD

:REC VIDEO SIGNAL

:REC CHROMA SIGNAL

:REC Y SIGNAL

JK3M01

VIDEO

IN

+

C-SYNC

TO SYSTEM CONTROL SECTION

-19-

BLOCK DIAGRAM -3/4 (AUDIO SECTION)

HA118717F

VIDEO/AUDIO

PROCESSOR

IC301

JK3M1

AUDIO

IN

AUDIO

OUT

MD3M1

(MODULATOR)

A.IN

1

:AUDIO(REC) SIGNAL

:AUDIO(PB) SIGNAL

REC AMP

9

8

7

TO SYSTEM CONTROL SECTION

VCA

DET

5V

REC "H"

AMP

PB EQ AMP

Q302,Q303 FL301,Q301

SW

4

11

2

BIAS

OSC

Q304-Q306 Q307

SW SW 5V

AUDIO REC/PB HEAD

AUDIO ERASE HEAD

FULL ERASE HEAD

REC "H"

TO SYSTEM CONTROL SECTION

-20-

BLOCK DIAGRAM - 4/4 ( SYSTEM CONTROL SECTION)

TO LOADING MOTOR

TO DRUM MOTOR

MOTOR DRIVE

TO CTL HEAD

P3D02

CTL(+) CTL(-)

TO CAPSTAN MOTOR

PG.ADJ

RESET

-214-3BA SYSTEM

CONTROL u-COM

TO AUDIO/VIDEO SECTION

NTSC P.B

SW5T10-SW5T13

SW5T1,SW5T3-SW5T6

TO POWER SECTION

-21-

TSOP2838WE1

(REMOTE SENSOR)

SCHEMATIC DIAGRAM - 1/3 (POWER SECTION)

MAIN(POWER SECTION)C.B

22uH

TO SYSTEM CONTROL

SECTION

C129

0.022u

HOT GND

SRA2203

L

TO AUDIO/VIDEO

SECTION

680

470pF

5.6K

PHOTO

1N5822

22uH

AC INPUT

NOTES) Symbol denotes AC ground.

NOTES) Symbol denotes DC chassis ground.

HOT CIRCUIT

NOTES) Warning

NOTES) Parts that are shaded are critical NOTES) With respect to risk of fire or NOTES) electricial shock.

-22-

TO SYSTEM CONTROL

SECTION

SCHEMATIC DIAGRAM - 2/3 (AUDIO/VIDEO SECTION)

TV/

TO SYSTEM CONTROL SECTION

TO POWER SECTION

To CYL. HEADS

MAIN(AUDIO/VIDEO SECTION)C.B

1/4

VIDEO/AUDIO PROCESSOR

1/7

12

L310 100uH

3/7

4/7

VIDEO

OUT

IN

2SA1980G

7

8

6

4

Sharpness

control

99

11

12

10

BUFFER

C3M3

0.01u

AUDIO

OUT

IN

(MODULATOR)

MD3M1 AERIAL

/ANT

TO SYSTEM CONTROL SECTION

To ACE HEADS

To FULL ERASE HEAD

4/4

SRC1203

2/7

7/7

SRA2203

3/4 2/4

2SC5344Y

2SA1980G

R306

2.2K

2SC5343

6/7

5/7

RF. OUT

2

3

1

3

4

WAVEFORM

:PB VIDEO SIGNAL :PB CHROMA SIGNAL :PB Y SIGNAL

:REC VIDEO SIGNAL

:REC CHROMA SIGNAL

:REC Y SIGNAL

:AUDIO(REC) SIGNAL

:AUDIO(PB) SIGNAL

-23-

SCHEMATIC DIAGRAM - 3/3 (SYSTEM CONTROL SECTION)

MAIN(SYSTEM CONTROL SECTION)C.B

560uH

10/11 11/11

220

REC

PAUSE/STILL

REW/

PLAY

/ F.FWD

To DRUM MOTOR

To LOADING MOTOR

TO AUDIO/VIDEO SECTION

To CAPSTAN MOTOR

SYSYEM

OPR

STOP/EJECT

POWER STANDBY/ON

MOTOR DRIVE

TOH-30M05G1

7

5

9

4 3

8 6

9/11

4/11

5/11

-214-3BA SYSTEM CONTROL u-COM

6/11

2

8/11

RESET

7/8

2

8/8

3/11

5/8

2/11

PG.ADJ

1/11

TSOP2838WE1 (REMOTE SENSOR)

4/8

TO AUDIO/VIDEO SECTION

2/8

1/8

MODE SW

SG260

SRC1203

6/8

7/11

3/8

TO POWER SECTION

: WAVEFORM

-24-

WIRING - 1/1 (MAIN C.B)

101112131415161718192021222324

1234567892526272829303132

BRN

BR

BLU

BL

AC200 ~ 240V

50Hz

MAIN C.B

PML01 To LOADIG MOTOR

PMC01 To CAPSTAN MOTOR PCM01

PMD01 To DRUM MOTOR PDM01

P3D02 To AUDIO/CTR HEADS

P3D01 To CYL. HEADS

AUDIO

JK3M1

IN

OUT

VIDEO

MD3M1 AERIAL

/ANT

A

B

C

D

B

C

E

RF. OUT

E

CB

F

B C

E

1

2

1

5

24

6432

32

13

14

B C

C

E

B

B C

E

RF

2

1

V.H/S

P3D03 To FULL ERASE HEAD

G

H

I

J

12 11 10 9 8 7

E

CB

E

CB

CTL

K

L

M

N

O

E

CB

MODE SW

B

CE

135

42

13

E C B

42

13

B C

E

3

1

P

Q

R

S

SW5T6 SW5T5 SW5T4

/ F.FWD

REW/PLAY

SW5T3 SW5T1

PAUSE/STILL

REC

3

1

RC501

REMOTE SENSOR

POWER

AUTO

REPEAT

PAL

PLAY

MESECAM

REC

NTSC3.58

-25-

LP/EP

NTSC4.43

121

STAND-BY

NTSC P.B

SW5T10

SYSYEM

SW5T11

OPR

CS501

(CST/TAP SW)

SW5T12 SW5T13

STOP/EJECT

POWER STANDBY/ON

T

U

IC301 Pin 14 100mV/10msec DIV VV/EE (Main De-Emphasis out)

IC301 Pin 16 100mV/10msec DIV PB (Main De-Emphais Peacking)

IC301 Pin 18, 21, 23 100mV/10msec DIV VV/EE

Clamp Drive IN Pin 18 Y-out(to 1H CCD) Pin 21 Y-out(from 1H CCD) Pin 23

IC301 Pin 31 200mV/10msec DIV EE (VIDEO IN)

IC301 Pin 71 100mV/0.2msec 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-

1

2

3 4

8

7

65

9

10

11

12

14

16

18

21

23

18

21

23

31

54

86 87

88

8971

78

50

52

44

58

60

58

60

IC501 Pin 24 REC/PB

IC501 Pin 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

VOLTAGE CHART -1/2

1. POWER SECTION

IC101

PB REC

1 2 3 4 5

AC AC

0.009 0

17.4

0.3 0.2

0.01 0

17.6

IC102

PB REC

1 2 3

4

5.1 5.1

4.1

4.4

17.4

17.6

4.1

4.3

2. AUDIO/VIDEO SECTION

IC301

PIN PB REC

1 2.5 2.5 2 2.5 2.5 30 0 4 2.5 2.5 50 0 6 2.8 2.8 7 2.5 2.5 8 2.5 2.5

9 2.5 2.5 10 2.5 2.5 11 2.5 2.5 12 5 5 13 1.6 2.1 14 1.6 2.1 15 2.3 2.3 16 - 0 17 1.8 18 2.1 2.1 19 2.8 2.8 20 2.8 2.8

PB REC PIN PB REC

21

2.1 2.1 41 5.1 5.1

22

2.2 2.4 42 1.7 1.7

23

2.8 2.8 43 5.1 5.1

24

2.1 2.1 44 2.5 2.5

25

1.4 1.4 45 0 0

26

2.1 2.1 46 1.9 1.9

27

004700

28

2.8 2.8 48 0 0

29

1.9 1.9 49 0 0

30

2.8 2.8 50 - -

31

--51--

32

--52--722.2 2.2

33

- - 53 2.8 2.8

34

- - 54 1.9 1.9

35

2.7 2.7 55 2.1 2.1

36

5.1 5.1 56 2.8 2.8

37

--57--

38

5.1 5.1 58 2.8 2.8

39

2.7 2.7 59 2.8 2.8

40

5.1 5.1 60 2.8 2.8

IC103

Gate Anode Cathode

PB REC PB REC PB REC

IC103 2.5 2.5 0 0 4.1 4.1

TRANSISTOR

Emitter Collector Base

PB REC PB REC PB REC Q152 12.9 13.1 12.8 13 0 0 Q153 5 5 5.3 5.3 5.7 5.7 Q155 5.3 5.3 5.3 5.2 4.6 4.5 Q156 0 0 0 0 0.7 0.7

61 62 63 64 65 66 67 68 69 70 71

73 74 75 76 77 78 79 80

PB REC

55

--

2.3 55 55 00

2.5 2.5

2.1 2.1

- 2.7

2.1 2.1

--

2.8 2.8

2.1 -

--

PIN PB REC

81 - 82 1.1 1.1 83 - 84 - 0 85 0 0 86 2.1 2.3 87 2.1 2.3 88 2.1 2.3 89 2.1 2.3 90 5.1 5.1 91 2.1 2.3 92 2.1 2.3 93 2.1 2.3 94 2.1 2.3 95 0 1.4 96 5 5 97 - 98 - 99 - -

100 2.5 2.5

TRANSISTOR

Emitter Collector Base

PB REC PB REC PB REC Q301 0 0.1 0.25 4.78 0.25 0.43 Q302 5.19 5.14 0.25 5.18 5.19 4.45 Q303 0 0 5.19 0 0 4.72 Q304 5.15 4.7 5.1 -24.4 4.48 4.72 Q305 0 -20.1 0 0 0.71 -24.4 Q306 0 -20.0 0 0 0.73 -24.2 Q307 5.19 5.13 5.14 4.7 0 4.72 Q3M1 3.07 3.04 0 0 2.45 2.42

-28-

VOLTAGE CHART -2/2

3. SYSTEM/CONTROL SECTION

IC501

PIN PB REC PIN PB REC PIN PB REC PIN PB REC PIN PB REC

1 - - 21 - - 41 5.2 5.2 61 5.16 5.16 81 2 - - 22 0 0 42 5.17 5.17 62 0 0 82 3 - - 23 - - 43 5.17 5.17 63 0 0 83 4 - - 24 - - 44 5.17 0 64 0 0 84 5 5.17 5.17 25 0 0 45 0 5.17 65 0 0 85 6 5.17 5.17 26 0 0 46 0 0 66 0 0 86 70 027- -4700670087 80 028- -480068 9--29 - - 49 5.17 5.17 69 5.2 1.27 89

10 - - 30 0 0 50 0 0 70 5.2 2.92 90 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 13 0 14 5.2 5.2 34 5.31 5.31 54 3.99 3.99 74 - - 94 15 16 0 0 36 0 0 56 2.80 2.80 76 - - 96 17 18 - - 38 0 0 58 4.91 4.91 78 - - 98 19 20 5.2 5.2 40 - - 60 - - 80 - - 100

33 0 0 53 5.15 5.15 73 - - 93

0

35 5.31 5.31 55 0 4.92 75 - - 95

-

37 5.17 5.17 57 2.38 2.38 77 0 0 97

-

39 5.04 5.04 59 0 0 79 - - 99

-

5.14/0 5.14/0

88

--

1.75 0

--

00

2.57 -

2.58 2.58

--

5.2 5.2

--

0

--

-

--

-

--

-

0

-

IC504

1 2 3

PB REC

5.2 5.2 0

5.2

0

5.2

-29-

ADJUSTMENT -1/1

VIDEO OUTPUT SIGNAL

Test Equipment

• Oscilloscope • + Driver • Digital Multimeter

• Video Signal Generator • Test Tape (SP) • Monitor Scope

• Level Meter • Recording Tape • Power Supply

MAIN C.B

V.OUT JACK

(JK3M1)

IC301

RF

H/SW

IC501

CTL

VR501

OSCILLOSCOPE

CH-1 CH-2

1. Servo Adjustment

1) PG Adjustment

MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION

PLAYBACK (H/SW)VIDEO OUT JACK VR501 416µsec ± 32µsec

Purpose:

For the phase dividing of the Video A,B heads with 180° and the exact tracking of each track to meet head switching point with VHS Spec.

Procedure:

a. Playback a PAL SP test tape. (At this time, 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 adjustment is practiced in the state of maximum RF level and locked servo system.

2. The deviation between A/B Head Adjustment location should be within ± 20µsec.

3. The deviation between the specification of adjustment and the practical measurement value should be within

± 20µsec.

4. Oscilloscope and VCR set should be connected with GND.

• WAVEFORM

Composite Video Signal

-30-

IC BLOCK DIAGRAM -1/1

VREG(5V)

3

8

FG OUT

25

26

29 28 27

2

1

200Ω

THERMAL SHUT-DOWN

CIRCUIT

MASK CIRCUIT

WAKE-UP

CONTROL

C1

C2

PC OUT VCO IN

CX

VC

FC

PG IN+ PG IN- PG OUT1 PG OUT2

CIRCUIT

PLL VCO 8 DIVIDER

200Ω

4 5 6 11 12 10 13 15

TIMING

CONTROL

CIRCUIT

ROTOR

POSLTION DET.

CIRCUIT

SOFT

SWITCHING

DRIVE CIRCUIT

1kΩ

VREG

5kΩ

7

LD IN+ LD IN- VREF LD OUT+

CIRCUIT

OUTPUT DRIVE

UPPER SIDE SATURATE

PREVENTION CONTROL

CIRCUIT

OUTPUT DRIVE

LD OUT-

21

19

22

23

24

16

17

18

20

30

9

14

VCC

MCOM

U IN

V IN W IN

U OUT

V OUT

W OUT

RF

GND

L VCC

L GND

-31-

IC DESCRIPTION -1/1 (µPD784927GF-214-3BA) -1/3

Pin No. Pin Name I/O Description

-

1

2

3

4

5

6

7

8

9

10

11 ~ 13

14

DFG MON

DPG MON

CFG MON

CTL MON

OSD ENA

OSD CLOCK

OSD DATA

-

DRUM PWM

CAP. PWM

-

VCC

Not connected

-

Not connected

-

Not connected

-

Not connected

-

Not connected

-

Not connected

-

Not connected

-

Not connected

O

Drum PWM control

O

Capstan PWMcontrol

-

Not connected

-

Power supply

15

16

17

18

19

20

21

22

23

24

25, 26

27

28

29

30

31

32

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-SYNC

MODE4

O

I/O

O

-

I

-

I

-

I

Not connected

GND

Not connected

33

34

35

36

37

38

39

40

41

42

43

44

45

MODE3

MODE2

MODE1

NC

TV/VCR “H”

HSR “H”

PWR CTL “H”

VSS

VCC

STAND-BY LED

LP/EP LED

REC LED

PLAY LED

I

-

O

-

O

Not connected

GND

-32-

IC DESCRIPTION -1/1 (µPD784927GF-214-3BA) -2/3

Pin No. Pin Name I/O Description

46

A.REPEAT LED

O

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62 ~ 64

65

POWER LED

CST-IN LED

-

CAP.REV. “H”

A.MUTE “H”

LD (+)

LD (-)

I-LIMIT

REC “H”

CAP ADJ

DRUM ADJ

R/C

OPTION

NC

PWR FAIL

-

SUP.SENSOR

O

I/O

O

-

I

-

I

Not connected

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

T-UP SENSOR

CST/TAB “H”

NTSC “H”

AVDD2

A.VREF

KEY RTN 1

KEY RTN 0

PG ADJ

-

MESECAM DET “H”

-

V.ENV

I

-

I

-

I

-

I

Not connected

83

84

85

86

87

88

AVSSW2

CTL DLY

CTL+

CTL-

CIL IN

CTL OUT1

-

I/O

I

O

-33-

IC DESCRIPTION -1/1 (µPD784927GF-214-3BA) -3/3

Pin No. Pin Name I/O Description

89

CTL OUT2

O

90

91

92

93

94

95

96

97

98

99

100

VREFC

AVSS1

AVDD1

CFG

CFG AMP OUT

CFG AMP IN

DPG

DFG

S-REEL SENSOR

T-REEL SENSOR

C.SYNC

-

I

O

I

-34-

-35-

ELECTRICAL TROUBLESHOOTING -1/13

1. Power Circuit(SMPS)

(1) No 5.3VA.

No 5.3VA.

Is the F101 normal?

Is the BD101 normal?

Is the R101 normal?

Does the oscillation waveform appear at the IC101 Pin 1?

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

NO

-36-

Is the D109 normal? Replace the D109.

Check 13VA/12VA Line of the Main PCB short.

YES

No 13VA.

Does 5.3VA work normally? Check whether 5.3VA is out of order.

YES

NO

Is the D151, D153 normal? Replace the D151, 153.

Check or Replace the Motor Vcc.

YES

No 12VA.

Does 13VA work normally? Check whether 13VA is out of order.

YES

NO

7. Power Circuit(SMPS)

(2) No 13VA.

(3) No 12VA.

ELECTRICAL TROUBLESHOOTING -2/13

1 Check the 13VA Line. 2 Check the Peripheral 2 Circuitry of ZD153.

-37-

Is about 5.5V put into the Q153/Q155 Base?

Does the 13VA Line work normally?

Check or Replace the Q153/Q155.

YES

NO

No 5V.

Is the Q156 Base “H”?

Is 5.3VA put into the Q153/Q155 collector?

Check the Power Control.

YES

NO

7. Power Circuit(SMPS)

(4) No 5V.

1 2

ELECTRICAL TROUBLESHOOTING -3/13

-38-

2. SERVO CIRCUIT

(1) Unstable Video in PB MODE

Unstable Video in PB Mode.

Does the Noise level of the screen change periodically?

Do the CTL pulses appear at the IC501 Pin 89?

Is adjusting the height of the CTL Head accurate?

Readjust the height of the

CTL Head.

Replace the IC501.

Refer to “When the Y signal doesn’t appear on the screen in PB Mode”.

Does the CFG waveform appear at the IC501 Pin 93?

On tracking do the CTL pulses move?

Does the Video Envelope waveform appear at the IC501 Pin 82?

Replace the IC501.

YES

NO

(2) When the Drum Motor

(2) doesn’t run.

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 at the IC501 Pin 97?

Do the Drum PWM Pulses appear at the IC501 Pin 9?

Aren’t the connecting patterns and the Components between IC501 Pin 9 and PMD01 Pin 1, 2 short?

When the Drum Motor doesn’t run,

Does 12VA appear at the IC502 Pin 21?

Does PG+, PG- appear at the PMD01 Pin 1, 2?

Check the connector (PMD01) and the Drum Motor Ass’y.

NO

YES

NO

YES

ELECTRICAL TROUBLESHOOTING -4/13

-39-

Does the CFG signal appear at the PMC01 Pin 6?

Does the PWM signal appear at the IC501 Pin 10?

Does 2.8V appear at the PMC01 Pin 4?

Check the PMC01 and the Capstan Motor Ass’y.

Does the Capstan PWM signal appear at the IC501 Pin 10?

Aren’t the foil patterns and Components between IC501 Pin 10 and PMC01 Pin 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

YES

When the Capstan Motor doesn’t run,

Does 12VA appear at the PMC01?

Replace the IC501.

YES

NO

YES

Refer to “SMPS(CAPSTAN/12Volt) Trouble Shooting”.

Aren’t the foil patterns and component

between IC501 Pin 93 and PMC01 Pin 6 short?

Check the Capstan Motor Ass’y.

NO

ELECTRICAL TROUBLESHOOTING -5/13

-40-

3. Y/C CIRCUIT

(1) No Video in EE Mode,

No Video in EE Mode

Check the Video Input Jack. (Line In Jack)

Does the Video signal appear at the IC301 Pin 31?

Is 5V applied to the IC301 Pins 12, 36, 61, 67, 90, 96?

Does the Video signal appear at the IC301 Pin 52?

Does the Video signal appear at the Emitter terminal of the Q3M1?

Check the 5V Line. (Power Circuit)

Is I2C 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 I2C BUS CHECK Trouble Shooting’)

YES

NO

ELECTRICAL TROUBLESHOOTING -6/13

-41-

3. Y/C CIRCUIT

(2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode,

Is 5V applied to the IC301 Pins 12, 36, 61, 67, 90, 96?

Is the I2C Bus siganl applied

to the IC301 Pins 62, 63?

Does the normal RF signal appear at the IC301 Pin79?

Check the line of the 5.3V Line. (Power Circuit)

Check the System Circuit. (IC501 Pin 24)

Check the V.H.S/W level.

Replace the IC301.

Refer to ‘SYSTEM I2C 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.

Does the Y(Luminance) RF signal appear at the IC301 Pin 18?

Is the Y(Luminance) Video waveform showed up at the IC301 Pin 39?

Replace the IC301.

NO

YES

NO

ELECTRICAL TROUBLESHOOTING -7/13

-42-

3. Y/C CIRCUIT

(3) When the C(Color) signal doesn’t appear on the screen in PB Mode,

Is 5V applied to the IC301 Pins 12, 36, 61, 67, 90, 96?

Does the Color signal appear at 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

NO

YES

ELECTRICAL TROUBLESHOOTING -8/13

-43-

3. Y/C CIRCUIT

(4) When the Video signal doesn’t appear on the screen in REC Mode,

Is the EE signal normal?

Is 5V applied to the IC301 Pins 12, 36, 61, 67, 90, 96?

Does the RF signal appear at the IC301 Pin 87?

Check EE Mode.

Check the System of REC ‘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

NO

YES

ELECTRICAL TROUBLESHOOTING -9/13

-44-

4. AUDIO CIRCUIT

(1) No sound in EE Mode

No sound in EE Mode.

No sound.

Is 5V applied to the IC301 Pin 96?

Is the Audio signal applied to the IC301 Pin 9?

Does the Audio signal appear at the IC301 Pin 11?

Check the connection of the Audio out Jack.

Does the CLK/Data signal(I2C) appear at the IC301 Pins 62, 63 ?

Replace the IC301.

Check the line of the 5V Line. (Power Circuit)

Check the path of LINE/AUDIO.

Is the Audio Mute “High” signal applied to the IC301 Pin 99?

Check the IC501 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

NO

(2) No sound in PB MODE

No sound in PB Mode.

No sound.

Is 5V applied to the IC301 Pin 96?

Does the CLK/Data signal(I2C) appear at the IC301 Pins 62, 63?

Does the Audio signal appear at the IC301 Pin 1?

Does the Audio signal appear at the IC301 Pin 11?

Replace the IC301.

NO

Check the IC501 Pin 27(CLK), 28(Data) Line.

NO

ELECTRICAL TROUBLESHOOTING -10/13

-45-

3. Y/C CIRCUIT

(3) No sound in REC Mode,

No sound in REC Mode,

Sound is not recorded.

Is the Audio signal applied to the IC301 Pin 9?

Refer to “No sound in PB Mode,”.

Check the CLK/Date line and replace the IC301

Check the path of Line Audio.

Is the “High” signal 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

NO

ELECTRICAL TROUBLESHOOTING -11/13

-46-

5. SYSTEM/KEY CIRCUIT

(1) AUTO STOP

(2) The unstable loading of a Cassette tape

Auto Stop

Does the SW30 waveform appear at the IC501 Pin 24?

Do the T-UP Reel Pulses appear at the IC501 Pin 99?

Is 12V applied to the IC502 Pin 9?

Check the Drum Motor signal.

Does 5.0V appear at the RS501?

Check the Q155 Power Circuit.

Refer to “SMPS CAPSTAN 12 Volt Trouble Shooting”.

Is 5.3V applied to the R544 ?

Refer to SMPS 5.3VA troubleshooting.

Check 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 during inserting the CST?

Caution :

Auto stop can occur because Grease or Oil is dried up

Check the Deck Mechanism.

YES

NO

YES

NO

YES

NO

NO NO

YES

Replace the IC502.

ELECTRICAL TROUBLESHOOTING -12/13

-47-

(3) KEY doesn’t working

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

ELECTRICAL TROUBLESHOOTING -13/13

MECHANICAL EXPLODED VIEW -1/1

457

A00

457

260

462

250

457

462

300

457

283

284

280

A43

452

HD3M1

320

330

323

275

LED502

-48-

MECHANICAL PARTS LIST -1/1

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

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-008-9B0 CASE ASSY A O 330 S5-50R-021-0A0 COVER BOTTOM A

O 452 S3-530-51A-000 SCREW,SPECIAL A O 457 87-741-097-410 SCREW,3-12 A O 462 S3-531-36A-000 SCREW,SPECIAL(FBK) A X A00 S7-21R-F06-05A DECK ASSY,VIDEO D33Y3 DI A O A43 S7-21R-F21-4A0 PANEL ASSY,FRONT A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-49-

COLOR NAME TABLE

Basic color symbol Color Basic color symbol Color Basic color symbol Color

B Black C Cream D Orange G Green H Gray L Blue

LT Transparent Blue N Gold P 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

-50-

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

-51-

MECHANISM PARTS LIST -1/3

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC O 032 S1-41R-000-2C0 CHASSIS 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 BODY F/L A X 113 S9-70R-005-6A0 SPRING F/L(R) A X 114 S2-60R-001-9A0 ARM F/L(R) A O 115 S9-70R-005-0A0 SPRING SWITCH A O 116 S5-10R-002-0A0 LEVER SWITCH A X 117 S3-00R-053-7A0 SPR,PLATE A O 426 87-261-094-410 PAN HEAD SCREW 3-6 A O A21 S9-31R-003-1A0 HOLDER ASSY A O A22 S8-11R-001-8A0 BRACKET ASSY DOOR A

HV-MC90 KEJC O A23 S2-61R-001-6A0 ARM ASSY F/L A X A24 S5-10R-001-9A0 LEVER ASSY SWITCH A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-52-

MECHANISM EXPLODED VIEW -2/3

401

002

505

001

023

024

032

406

028

504

014

012

504

017

013

022

015

401

007

006

A03

A01

009

025

026

027

A04

011

031

018

019

021

020

029

003

004

409

016

-53-

MECHANISM PARTS LIST -2/3

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC O 001 S7-23R-D10-4B0 DRUM ASSY,SUB D33-2CH A O 002 S6-80R-B00-4A0 MOTOR,DRUM GVD-L33Y A O 002 S6-80R-B00-3A0 MOTOR,DRUM VH4300 A O 003 S9-30R-010-6A0 HOLDER FPC A O 004 S0-06R-002-0A0 CAP,FPC A X 006 S5-80R-000-4A0 ROLLER CLEANER A X 007 S2-60R-002-7A0 ARM CLEANER A O 009 S2-61R-001-7A0 ARM ASSY T/UP(D-33K) A O 011 S2-61R-001-8A0 ARM 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 FE D33 A

HV-MC90 KEJC O 023 S9-80R-001-0A0 SUPPORTER CST A O 024 S2-61R-001-3A0 ARM ASSY IDLER A X 025 S8-10R-006-6A0 BRACKET L/D MOTOR A X 026 S6-81R-000-8A0 MOTOR ASSY L/D A O 027 S4-70R-002-5A0 GEAR WHEEL A O 028 S4-08R-000-2B0 REEL T A O 029 S2-61R-001-1A0 ARM ASSY PINCH A O 031 S9-70R-006-9A0 SPRING TENSION A O 032 S1-41R-000-2C0 CHASSIS ASSY D33Y A O 401 SM-PC0-261-418 SCREW,2.6-4.0 A

O 406 87-261-094-410 PAN HEAD SCREW 3-6 A O 409 87-741-095-410 SCREW,PAN HEAD 3.0-8.0 A O 504 S3-540-01B-000 WASHER,P.S 3.1-6-0.5 A O 505 S8-50R-HE2-2Z0 CABLE,FLEXIBLE 220M/M A O A01 S7-23R-D30-1B0 DRUM ASSY,D33(Y2,Y3)-2CH A O A03 S2-61R-001-5A0 CLEANER ARM ASSY A O A04 S8-11R-001-9A0 BRACKET ASSY L/D MOTOR A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-54-

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

-55-

MECHANISM PARTS LIST -3/3

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

HV-MC90 KEJC O 032 S1-41R-000-2C0 CHASSIS ASSY D33Y A O 051 S4-00R-000-5A0 BELT CAPSTAN A O 052 S6-80R-A00-1A0 MOTOR(MECH) CAPSTAN F2QSB53 A O 053 S9-74R-001-8A0 GUIDE RACK 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 S4-70R-002-9A0 GEAR P3 A X 068 S4-70R-002-7A0 GEAR P2 A X 069 S9-70R-004-6A0 SPRING L/D A X 070 S5-10R-001-5A0 LEVER P2 A O 077 S3-00R-015-7A0 PLATE SLIDER A

HV-MC90 KEJC O 078 S5-10R-002-2A0 LEVER TENSION A O 079 S0-40R-002-1A0 BASE,TENSION(D-33K) A O 410 SA-PF0-262-218 SCREW,PAN HEAD 2.6-6.8 A O 426 87-261-094-410 PAN HEAD SCREW 3-6 A O 517 SW-ZZR-000-4B0 WASHER STOPPER A O 518 SW-ZZR-000-4A0 WASHER STOPPER A O 519 SW-ZZR-000-4D0 WASHER STOPPER A O A11 S4-70R-002-8A0 GEAR ASSY P3 A O A12 S4-70R-002-6A0 GEAR ASSY P2 A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-56-

OTHER PARTS LIST -1/1

! = ! SAFTY PARTS C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

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 NA7IA A X S8-90R-H30-7W0 BOX,CLA112TW A X S9-20R-006-7A0 PACKING A

All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated 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.

-57-

-58-

• Bottom View

DECK MECHANISM PARTS LOCATIONS

• Top View

Motor Capstan 23

Gear Connector 32 Gear Cam 31

Brake Assembly 29 Capstan

Belt Capstan 22 Gear Drive 30 Guide Rack F/L 27

Gear Rack F/L 28 Clutch Assembly D33-Y

24

Lever F/R 25

26 Gear Assembly H-Up/D-K

Option

38 Gear Assembly P3

39 Gear Assembly P2

35 Base Tension

34 Gear Sector

37 Lever Tension

36 Plate Slider

(For High Rewind Models)

26 Gear Assembly Up/D-K

(For Normal Models)

NOTE : When reassembly perform the

procedure in the reverse order.

1) When reassembling, confirm Mechanism and Mode Switch Alignment Position (Pefer to Page 71)

2) When disassembling, the Parts for Starting No. Should be removed first.

1 Drum Assembly 3 Screws , Cap FPC A-1 2 Plate Assembly Top Two Hooks A-2

2 3 Holder Assembly CST Chassis Hole A-2

4 Guide CST 2 Hooks A-2 2,3,4 5 Bracket Side (L) 1 Screw A-2 2,3,4 6 Bracket Assembly Door 1 Screw A-2 2,3,4,5,6 7 Arm Assembly F/L Chassis Hole A-2 2,3,4,5 8 Lever Assembly S/W Chassis Hole A-2

9 Arm Assembly Cleaner Chassis Embossing A-3

10 Head F/E 2 Hooks A-3 11 Base Assembly A/C Head 1 Screw A-3

12 Brake Assembly S Chassis Hole A-4 2,3 13 Brake Assembly T Chassis Hole A-4 2,3,12, 14 Arm Assembly Tension Chassis Hole A-4 2,3,12,14 15 Reel S Chassis Shaft A-4 2,3,13 16 Reel T Chassis Shaft A-4

17 Support CST Chassis Embossing A-5

18 Base Assembly P4 Chassis Embossing A-5

19 Opener Lid Chassis Embossing A-5 19 20 Arm Assembly T/Up Chassis Embossing A-5 19 21 Arm Assembly Pinch Chassis Shaft A-5

Starting No.

Pracedure

Part

Fixing Type

Fig-

ure

22 Belt Capstan A-6

22 23 Motor Capstan 3 Screws A-6

24 Clutch Assembly D33-K 1 Washer A-6

22,24 25 Lever F/R 1 Hook A-6 22,24 26 Gear H-Up/D-K 2 Washers A-6

27 Guide Rack F/L 1Screw A-7

27 28 Gear Rack F/L A-7 27, 28 29 Brake Assembly Capstan Chassis Shaft A-7 27, 28 30 Gear Drive 1 Washer A-8 27, 28, 29 31 Gear Cam Chassis Shaft A-8 27, 28, 29, 30

32 Gear Connector Chassis Shaft A-8

33 Bracket Assembly L/D Motor 3 Hooks A-8

34 Gear Sector 3 Washers A-9

35 BaseTension 1 Screw A-9

22, 24, 25, 36 Plate Slider Chassis Shaft A-9 27, 28, 30, 34, 35 22, 24, 25, 37 Lever Tension Chassis Hole A-9 27, 28, 30, 34, 35 34 38 Gear Assembly P3 2 Hooks A-10 34, 38 39 Gear Assembly P2 2 Hooks A-10 34, 38, 39 40 Base Assembly P3 Chassis Hole A-10 34, 38, 39, 40

41 Base Assembly P2 Chassis Hole A-10

1, 2 42 Arm Assembly Idler 1 Hook A-10

Starting No.

Pracedure

Part

Fixing Type

Fig-

ure

Bracket Side 'L' 5

Plate Assembly 2 Top

Lever Assembly 8 S/W

Head F/E 10

Drum Assembly 1

Support CST 17 Base Assembly P2 41

Brake Spring S Brake Assembly S 12

Arm Assembly 14 Tension

Band Assembly Tension

Reel S 15

Lever Assembly S/W 8

6 Bracket

Assembly Door

7 Arm Assembly F/L

Opener Door

4 Guide CST

3 Holder Assembly CST

9 Arm Assembly Cleaner

33 Bracket Assembly

L/D Motor

11 Base Assembly

21 Arm Assembly Pinch

A/C Head

19 Opener Lid

18 Base Assembly P4

40 Base Assembly P3

20 Arm Assembly T/Up

42 Arm Assembly ldler

16 Reel T

13 Brake Assembly T

Brake Spring T

-59-

DECK MECHANISM DISASSEMBLY

(For Jog Shuttle Models)

Stator

Drum Motor

Rotor

(S2)

(S3)

(S2)

(S3)

(S1)

Cap FPC

H1

(S1)

Drum Sub Assembly

Drum FPC

Optional Parts

Holder FPC or Holder FPC or Holder FPC

(only for 2HD Models) (only for 4HD-Mono Models) (only for 4HD-Hi-Fi Models)

1. Drum Assembly (Fig. A-1-1)

1) Unhook 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

NOTE

(Fig. A-1-1)

(Fig. B-1)

Holder FPC

Drum FPC

Cap FPC

Figure in the opposite direction

-60-

DECK MECHANISM DISASSEMBLY

H1

(A)

(B)

H2

Plate Assembly Top

Arm 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)

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)

-61-

2. Plate Assembly Top (Fig. A-2-1)

1) Unhook the (H1) and separate the Left Side.

2) Unhook the (H2) and lift up the Plate Assembly Top.

(1) When reassembling, confirm (A),(B) Part of the Plate

Assembly Top is inserted to the (L),(R) Grooves of the Bracket Side(L) and Bracket Assembly Door.

3. Holder Assembly CST (Fig.A-2-2)

1) Push the Lever Stopper (R) in the direction of the arrows (A) and move the Holder Assembly CST.

2) Push the Bracket Assembly Door to the right and lift up the Holder Assembly CST along the Guide Groove of the Bracket Assembly Door.

4. Guide CST (Fig.A-2-3)

1) Unhook(H3) in the direction of the arrow and separate the left side.

2) Unhook (H4) as above No.1) and disassemble 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 the Gear(B) of the Gear Rack F/L are assembled as below.

7. Lever Assembly S/W (Fig. A-2-7)

1) Hook the Spring Lever S/W on (H5).

2) Lift up the left side of the Lever S/W from the Groove(A) of the Chassis.

DECK MECHANISM DISASSEMBLY

NOTE

Plate Assembly Top

Bracket Side (L)

Bracket Assembly Door

Lever Stopper (R)

Holder Assembly CST

(A)

Bracket Side (L)

Bracket Assembly Door

(H3)

(H4)

NOTE

Gear (B)

Gear (A)

(H5)

Spring

Lever S/W

(H5)

(L)

(A)

(R)

(B)

Guide Groove

Bracket Assembly Door

Holer Assembly CST

-62-

DECK MECHANISM DISASSEMBLY

(1) Place the Spring Lever S/W of the above (No.1) as

original position.

8. Arm Assembly Cleaner(Fig. A-3-1)

1) Break away the (A) part shown above Fig. A-3-1 from the Embossing of the Chassis 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

Fig. A-3

(Fig. A-3-1)

(Fig. A-3-3)

(Fig. A-3-2)

Spring

Lever S/W

(H5)

Arm Assembly

Cleaner

(A)

( H1)

Head F/E

(S5)

Base Assembly A/C Head

(For Jog Shuttle Models)

11. Brake Assembly S (Fig. A-4-1)

1) Remove the Spring S Brake.

2) Hold the (A) part shown above Fig. A-4-1 and turn to the clockwise direction, and then lift up the Brake Assembly S.

(1) When reassembling, be careful not to change the Spring

with below No.12.(Refer to Fig. B-2).

12. Brake Assembly T (Fig. A-4-2)

1) Remove the Spring T Brake.

2) Hold the (B) part shown above Fig. A-4-2 and turn to the counterclockwise direction, and then lift up the Brake Assembly T.

(1) When reassembling, be careful not to change the

Spring with above No.11.(Refer to Fig. B-2).

13. Arm Assembly Tension (Fig. A-4-3)

1) Remove the Spring Tension.

2) Hold the (C) part shown above Fig. A-4-3 and turn to the clockwise direction, and then lift up the Arm Assembly Tension.

(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 and Reel

T.

-63-

DECK MECHANISM DISASSEMBLY

Fig. A-4

NOTE

(Difference for Springs)

Color (Black)

Three Holes

Reel S

Reel T

(Fig. B-2)

NOTE

(Fig. A-4-1)

(Fig. A-4-5)

(Fig. A-4-3)

(Fig. A-4-4)

(Fig. A-4-2)

Spring S Brake

Brake Assembly S

(A)

Arm Assembly Tension

Spring Tension

(C)

Band

Assembly

Tension

Reel S

(For Jog Shuttle Models)

Reel T

Spring T Brake

B

Brake Assembly T

Spring T Brake Spring S Brake Spring Tension

-64-

DECK MECHANISM DISASSEMBLY

(D)

(C)

Opener Lid

Arm Assembly T/up

Base Assembly P4

Support CST

Arm

Assembly

Pinch

(B)

(A)

Fig. A-5

15. Support CST (Fig. A-5-1)

1) Break away the (A) part shown above Fig. A-5-1 from the Embossing of the Chassis in the clockwise direction, and lift up the Support CST.

16. Base Assembly P4 (Fig. A-5-2)

1) Break away the (B) part shown above Fig. A-5-2 from the Embossing 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 T/UP as below figure.

19. Arm Assembly Pinch (Fig. A-5-5)

1) Lift up the Arm Assembly Pinch.

NOTE

Opener Lid

Arm Assembly T/up

(Fig. A-5-3)

(Fig. A-5-4)

(Fig. A-5-1)

(Fig. A-5-2)

(Fig. A-5-5)

(H1)

-65-

DECK MECHANISM DISASSEMBLY

Belt Capstan

Motor Capstan

Washer(W1)

Washer(W2 )

Optional Parts

Gear H-Up/D-K

(For Hi-Rewind Models) (For Normal Models)

or Gear Up/D-K

Spring Up/D

Lever F/R

Hook(H1)

Brake Assembly Capstan

(For 4HD Models)

(C)

( A')

(B ')

(S6)

Clutch Assembly D33-K

(A)

(B)

(For Jog Shuttle Models)

Fig. A-6

20. Belt Capstan (Fig. A-6-1)/

Motor Capstan (Fig. A-6-2)

1) Remove the Belt Capstan.

2) Remove three Screws(S6) on the back side of the Chassis and lift up the Motor Capstan.

(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. Gear H-Up/D-K or Gear Up/D-K (Fig. A-6-5)

1) Remove the Washer(W2) and lift up the Gear H-up/D-K.

2) Remove the Spring Up/D.

(1) Gear H-Up/D-K is for Hi-Rewind Models. (2) Gear Up/D-K is for Normal Models except Hi-Rewind

Models.

NOTE

(Fig. A-6-1)

(Fig. A-6-2)

(Fig. A-6-3)

(Fig. A-6-5)

(Fig. A-6-4)

NOTE

-66-

DECK MECHANISM DISASSEMBLY

Fig. A-7

24. Bracket Assembly Jog (Fig. A-7-1) (Jog shuttle model option)

1) Remove the Screw(S4) and 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

Brake Assembly Capstan is aligned to the Hole(B) of the Gear Cam. (Refer to above Fig. A-7-4).

NOTE

(Fig. A-7-4)

(Fig. A-7-1)

(Fig. A-7-2)

(Fig. A-7-3)

Brake Assembly Capstan

Hole (A)+(B)

Gear Cam

Guide Rack F/L

(S4)

(H2)

Hole (A)

(H1)

Barke Assembly Capstan

(For 4HD Models)

Spring Capstan

(S4)

Barke Assembly Jog

(For Jog Shuttle Models)

Gear Rack F/L

Hole (B)

Gear Cam

(For Jog Shuttle Models)

Hook(H2)

-67-

Gear Cam (C)

Gear Drive (D)

DECK MECHANISM DISASSEMBLY

Washer (W1)

Gear Drive

Gear Cam

Gear Connector

Hole (A)

Hole (B')

Hole (B')+(B)

Chassis

Hole (A')+(A)

Gear Cam

Gear Connector

Brake Assembly Capstan

(For 4HD Models)

Hole (A')

Bracket Assembly

L/D Motor

H1

H2

Hole (B)

Fig. A-8

27. Gear Drive (Fig. A-8-1)/ Gear Cam (Fig. A-8-2)/ Gear Connector (Fig. A-8-3)

1) Remove the Washer(W1) and lift up the Gear Drive.

2) Lift 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. Bracket Assembly L/D Motor (Fig. A-8-4)

1) Unhook the three Hooks(H1),(H2) and push down the Bracket Assembly L/D Motor.

NOTE

Hook (H1), (H2)

Chassis

(Fig. B-3)

(Fig. A-8-1)

(Fig. A-8-2)

(Fig. A-8-3)

(Fig. A-8-4)

-68-

DECK MECHANISM DISASSEMBLY

(For Jog Shuttle Models)

Washer

Gear Sector

Plate Slider

Lever Tension

(A)

Base Tension

(W1)

(S4)

Fig. A-9

29. Gear Sector (Fig. A-9-1)

1) Remove the Washer(W1) and lift up the Gear Sector.

30. Base Tension (Fig. A-9-2)/ 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)

(Fig. A-9-2)

(Fig. A-9-4)

(Fig. A-9-3)

-69-

DECK MECHANISM DISASSEMBLY

Fig. A-10

31. Gear Assembly P3 (Fig. A-10-1)/

Gear Assembly P2 (Fig. A-10-2)

1) Unhook the two Hooks(H1) and lift up the Gear Assembly

P3.

2) Unhook the two Hooks(H2) and lift up the Gear Assembly

P2.

32. Base Assembly P3 (Fig. A-10-3)/

Base Assembly P2 (Fig. A-10-4)

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) Arm Assembly Idler Jog is for Jog Shuttle Models.

1) When reassembling, confirm that the (A) Part of the Gear Assembly P3 is aligned to the (B) Part of the Gear Assembly P2 as shown below.

NOTE

(Fig. A-10-1)

(Fig. A-10-2)

(Fig. A-10-4)

(Fig. A-10-3)

(Fig. A-10-5)

(Unloading Condition)

Gear Assembly P3

H1

Gear Assembly P3

Optional Parts

Arm Assembly Idler

(For Normal Models) (

(A)

(B)

Gear Assembly P2

Arm Assembly Idler Jogor

For Jog Shuttle Models)

H2

Gear Assembly P2

(A)

(B)

Chassis

Base Assembly P2

(H3)

Base Assembly P3

Gear Assembly P3

(A)

(B)

Gear Assembly P2

-70-

DECK MECHANISM DISASSEMBLY

• Tools and Fixfures for Service

1. Cassette Torque meter

1. SRK-VHT-303(Not SVC part)

1.

4. Torque gauge adaptor 5. Post height adjusting driver Parts No: SV-TGO-030-000 (SMALL) SV-TGO-020-000 (LARGE)

6. + Type driver (∅ 5)

2. Alignment tape (See figure below)

3. Torque gauge

3. 600g.Cm ATG

SRK

VIDEO

CAS

SETTE

TORQUE

M

ETER

VHT-303

S

R

K

-

V

H

T

-

S

R

K

-

V

H

T

300

2

50

20

0

150

50

0

300

25

0

200

150

5

0

10

0

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-P2L)

TTV-N1

(TTV-N12)

TTV-N2

TTV-P1

TTV-P2

TTV-N1

(TTV-N12)

(TTV-N1E)

TTV-N2

TTV-N2E

TTV-N12

A commercially available tape

SRK-VHT-303

RG Post lnclination

Tape Back Tension

The numbers in ( ) parenthesis can be used as the substiture.

X-value

-71-

DECK MECHANISM ADJUSTMENT

Purpose:To determine if the Mechanism is in the correct position, when a Tape is ejected.

1.Mechanism Alignment Position Check

1) Turn the Power S/W on and eject the Cassette by pressing the Eject Button.

2) Remove the Top Cover and Plate Assembly Top, visually check if the Gear Cam Hole is aligned with the Chassis Hole as below Fig. C-2.

3) IF not, rotate the Shaft of the Loading Motor to either Clockwise or Counterclockwise until the 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)

Test Equipment/ Fixture

• Blank tape

Test Conditions (Mechanism

Condition)

• Eject Mode (with Cassette ejected)

Check Point

• Mechanism and Mode Switch Position

Fig. C-1

Fig. C-2

CHECK DIAGRAM

BOTTOM VIEW

TOP VIEW

Gear Cam (o) and Gear Drive (o) groove alignment

L/D Motor Assembly

Chassis Hole

Gear Cam

Gear Cam Hole

-72-

DECK MECHANISM ADJUSTMENT

Purpose: To insure smooth Transport of the Tape during each Mode of Operation.

If the Tape Transport is abnormal, then check the Torque as indicated by the chart below.

2. Preparation for Adjustment (To set the Deck Mechanism to the Loading state without inserting a Cassette Tape).

1) Unplug the Power Cord from the AC Outlet.

2) Disassemble the Top Cover and Plate Assembly Top.

3) Plug the Power Cord into the AC Outlet.

4) Turn the Power S/W on and push the Lever Stopper (L),(R) of the Holder Assembly CST to the back for

Loading the Cassette without Tape. Cover the Holes of the End Sensors at the both sides of the Bracket Side(L) and Bracket Assembly Door to prevent a light leak. Then The Deck Mechanism drives to the Stop Mode. In this case, The Deck Mechanism can accept inputs of each mode, however the Rewind and Review Operation can not be performed for more than a few seconds because the Take-up Reel Table is in the Stop State and can not be detected the Reel Pulses.

3. Checking Torque

The Values are measured by using a Torque Gauge and Torque Gauge 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

V

ID

E

O

C

A

S

E

T

E

T

O

R

Q

U

E

M

E

T

E

R

V

H

T

-3

03

S

R

K

-

V

H

T

-

S

R

K

-

V

H

T

-

T

300

25

0

2

00

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-VHT-303

Checking Method

• Perform each Deck Mechanism Mode without inserting a Cassette Tape(Refer to above No.2 Preparation for Adjustment).

• Read the Measurement of the Take-up or Supply Reels on the Cassette Torque Meter(Fig. C-3-2).

• Attach the Torque Gauge Adaptor to the Torque Gauge and then read the Value of it(Fig. C-3-1).

NOTE:

Fig. C-3-2

Fig. C-3-1

Torque Gauge

Torque Gauge Adaptor

Reel Table

Item

Fast Forward Torque

Rewind Torque

Play Take-Up Torque

Review Torque

Mode

Fast Forward

Rewind

Play

Review

Test Equipment

Cassette Torque Gauge

Cassette Torque Meter

Measurement Reel

Take-Up Reel

Supply Reel

Take-Up Reel

Supply Reel

Measurement Values

More than 400g/cm

70~120g/cm

130~210g/m

Test Conditions

(Mechanism Condition)

• Play (FF) or Review (REW) Mode

NOTE:

• Cassette Torque Meter (SRK-VHT-303)

• Torque Gauge (600g.cm ATG)

-73-

DECK MECHANISM ADJUSTMENT

4.Guide Roller Height Adjustment

Adjustment Procedure

1) Confirm if the Tape runs along the Tape Guide Line of the Lower Drum.

2) If the Tape runs the Bottom of the Guide Line, turn the Guide Roller Height Adjustment Screw to Clockwise direction.

3) If it runs the Top, turn to Counterclockwise direction.

4) Adjust the Height of the Guide Roller to be guided to the Guide Line of the Lower Drum from the Starting and

Ending Point of the Drum.

Purpose: To regulate the Height of the Tape so that the Bottom of the Tape runs along the

Tape Guide Line on the Lower Drum.

Test Equipment/ Fixture

• Post Height Adjusting Driver

Test Conditions (Mechanism Condition)

• Play or Review Mode

Adjustment Point

• Guide Roller Height Adjustment screws on the Supply and Take-Up Guide Rollers.

Fig. C-4-1

Upper Flange

Guide Roller Retaining Screw

Guide Roller Height Adjustment screw

ADJUSTMENT DIAGRAM

Test Equipment/Fixture

• Oscilloscope

• Alignment Tape

• Post Height Adjusting

Driver

Test Equipment Connection Points

• CH-1:PB RF Envelope

• 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

OSCILLOSCOPE

HEAD SWITCHING OUTPUT TEST POINT

Turn(Move) the tracking control to both directions

4-1. Preliminary Adjustment

4-2. Precise Adjustment

Adjustment Procedure

1) Play an Alignment Tape after connecting the Probe of the Oscilloscope to the RF Envelope Output Test Point and Head Switching Output Test Point.

2) Tracking Control(in PB Mode) : Center Position(When this Adjustment is performed after the Drum Assembly has been replaced, set the Tracking Control so that the RF Output is Maximum).

3) Height Adjustment Screw : Flatten the RF Waveform. (Fig. C-4-2)

4) Turn(Move) the Tracking Control(in PB Mode) Clockwise and Counterclockwise.(Fig. C-4-3)

5) Check that any Drop of RF Output is uniform at the Start and End of the Waveform.

If the adjustment is excessive or insufficient the tape will jam or fold.

NOTE

Waveform Diagrams

Connection Diagram

-74-

DECK MECHANISM ADJUSTMENT

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

10.9

Purpose: To insure that the Tape passes accurately over the Audio and Control Tracks in

exact Alignment in both the Record and Playback Modes.

Test Conditions (Mechanism Condition)

Fig. C-5-1

A/C Head Base

Fig. C-5-2

Height Adjustment

Screw(B)

Tilt Adjustment

Screw(C)

Azimuth Adjustment Screw(A)

X-Value Adjustment Hole

Fixed Screw

Fig. C-5-3

A/C Head

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 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 Playback about 4~5 seconds.

Ideal A/C head height occurs, when the tape runs between 0.2~0.25mm above the bottom edge of the A/C head core.

NOTE

Adjustment Procedure/Diagrams

A/C Head Assembly

Test Equipment/ Fixture

• Blank Tape

• Screw Driver(+) Type 5mm

• Play the blank tape

Adjustment Point

• Tilt Adjustment Screw(C)

• Height Adjustment Screw(B)

• Azimuth Adjustment Screw(A)

-75-

DECK MECHANISM ADJUSTMENT

Purpose: To obtain compatibility with other VCR(VCP) Models.

5-2. Confirm that the Tape passes smoothly

between the Take-up Guide and Pinch Roller(using a Mirror or the naked eye).

1) After completing Step 5-1.(Preliminary Adjustment), check that the Tape passes around the Take-up Guide and Pinch Roller without Folding or Curling at the Top or Bottom. (1) If Folding or Curling is observed at the Bottom of

the Take-up Guide then slowly turn the Tilt Adjustment Screw(C) in the Clockwise direction.

(2) If Folding or Curling is observed at the Top of it

then slowly turn the Tilt Adjustment Screw(C) in the Counterclockwise direction.

Check the RF Envelope after adjusting the A/C Head, if the RF Waveform differs from Fig. C-5-4, performs Precise Adjustment to flat the RF Waveform.

Test Equipment/ Fixture

• Oscilloscope

• Alignment Tape(SP)

• Screw Driver(+) Type 5mm

Connection Point

• Audio output jack

Test Conditions

(Mechanism Condition)

• Play an Alignment Tape 1KHz, 7KHz Sections

Adjustment Point

•

Azimuth Adjustment Screw(A)

•

Height Adjustment Screw(B)

1) Connect the Probe of the Oscilloscope to Audio Output Jack.

2) Alternately 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 PointConnection PointTest Equipment/ Fixture

Adjustment Procedure

1) Release the Automatic Tracking to run long enough for Tracking to complete it's Cycle.

2) Loosen the Fixed Mounting Screw and move the Base Assembly A/C Head in the direction as shown in the Diagram to find the center of the peak that allows for the maximum Waveform Envelope. This method should allow the 31um Head to be centrally located over the 58um Tape Track.

3) Tighten the Base Assembly A/C Head mounting Screw.

7KHZ

A:Maximum

B:Maximum

Left

Right

Groove at the Base A/C

Height Adjustment Screw(B)

Tilt Adjustment Screw(C)

Azimuth Adjustment Screw(A)

X-Value Adjustment Hole

Fixed Screw

RF ENVELOPE OUTPUT TEST POINT

OSCILLOSCOPE

HEAD SWITCHING OUTPUT TEST POINT

Connection Diagram

Adjustment Diagram

NOTE:

CH-1

CH-2

• Oscilloscope

• Alignment tape(SP only)

• Screw Driver(+) Type 5mm

• CH-1: PB RF Envelope

• CH-2: NTSC: SW 30Hz

PAL: SW 25Hz

• Head Switching Output Test Point

• RF Envelope Output Test Point

-76-

• CH-1: PB RF Envelope

• CH-2: NTSC: SW 30Hz

PAL: SW 25Hz

• Head Switching Output Test Point

• RF Envelope Output Test Point

Test Equipment/ Fixture

• Oscilloscope

• Alignment tapes(with 6H

3kHz Color Bar Signal)

• Stop Watch

VCR(VCP) State

• Run the CUE, REV play mode at the beginning and the end of the tape.

Test Equipment

Connection Points

•

CH-1: PB RF Envelope

•

CH-2: Audio Output

•

RF Envelope Output Point

•

Audio Output Jack

DECK MECHANISM ADJUSTMENT

Purpose: To correct for shift in the Roller Guide and X value after replacing the Drum.

8-2.Check for tape curling or jamming

Test Conditions (Mechanism Condition)

1) Confirm that the tape runs smoothly around the roller guides, drum and A/C head assemblies while abruptly changing operating modes from Play to CUE or REV. This is to be checked at the begining, middle and end sections of the cassette.

2) Confirm that the tape passes over the A/C head assembly as indicated by proper audio reproduction and proper tape counter performance.

Checking Procedure

7. Adjustment after Replacing Drum Assembly (Video Heads)

Test Equipment/ Fixture

• Oscilloscope

• Alignment tapes

• Blank Tape

• Post Height Adjusting Driver

• 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. "Audio Control(A/C) Head Adjustment".

RF ENVELOPE OUTPUT TEST POINT

OSCILLOSCOPE

HEAD SWITCHING OUTPUT TEST POINT

Connection Diagram

Waveform

Fig. C-7

8. Check the Tape Travel after Reassembling Deck Assembly.

8-1.Check Audio and RF Locking Time during playback and after CUE or REV (FF/REW)

Specification

•

RF Locking Time: Less than 5 sec.

•

Audio Locking Time:Less than

10sec

Test Conditions

(Mechanism Condition)

•

Play an alignment tape (with 6H 3kHz Color Bar Signal)

Checking Procedure

Play an alignment tape then change the operating mode to CUE or REV and confirm if the unit meets the above listed specifications.

1) CUE is fast forward mode (FF)

2) REV is the rewind mode (REW)

3) Referenced to the Play mode

NOTES:

V1

V

V2

CH1 CH2

Connection Points

Test Equipment/ Fixture

• T-160 Tape

• T-120 Tape

Specification

•

Be sure there is no tape jamming or curling at the begining, middle or end of the tape.

V1/V MAX 0.7 V2/V MAX 0.8

RF ENVELOPE OUTPUT

-77-

MAINTENANCE/INSPECTION PROCEDURE

(4) F/E Head

(3) P1 Post

(6) Drum Assembly

(Video Head)

(5) Base

Assembly P2

(2) Tension Post

(1) Supply Reel

(7) Base Assembly P3

The following faults can be remedied by cleaning and oiling. Check the needed lubrication and the conditions of cleanliness in the unit. Check with the customer to find out how often the unit is used, and then determine that the unit is ready for inspection and maintenance. Check the following parts.

1 Check before starting repairs

Phenomenon Inspection

Replace-

ment

Color beats Dirt on full-erase head

o

Poor S/N, no color

Dirt on video head

Vertical or Horizontal jitter

Dirt on Audio/control head

Dirt 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

Dirt on video head

Dirt on tape transport system

Low volume,

Sound distorted

Tape does not run.

Tape is slack

o

In Review and Unloading (off mode), the Tape is rolled up loosely.

Clutch Assembly D33K Torque reduced

Cleaning Drum and transport system

Fig. C-9-3

(8) A/C Head

(9) P4 Post

(11) Pinch Roller (12) Take-up Guide

Post

(10) Capstan Shaft

(13) Take-up Reel

* No. (1)~(13) Indicates the Tape Path to be traveled from Supply Reel to Take-up Reel.

Fig. C-9-1 Top VIEW

Fig. C-9-2 BOTTOM VIEW

F/E Head

Video Head

A/C Head

Pinch Roller

Belt Capston

Clutch

Assembly D33K

Fig. C-9-3 Tape Transport System

-78-

MAINTENANCE/INSPECTION PROCEDURE

The recording density of a VCR(VCP) is much higher than that of an audio tape recorder. VCR(VCP) components must be very precise, at tolerances of 1/1000mm, to ensure compatiblity with other VCRs. If any of these components are worn or dirty, the symptoms will be the same as if the part is defective. To ensure a good picture, periodic inspection and maintenance, including replacement of worn out parts and lubrication, is necessary.

Schedules for maintenance and inspection are not fixed because they vary greatly according to the way in which the customer uses the VCR(VCP), and the environment in which the VCR(VCP) is used. But, in general home use, a good picture will be maintained if inspection and maintenance is made every 1,000 hours. The table below shows the relation between time used and inspection period.

Table 1

(1) Grease : Kanto G-311G (Blue) or equivalent (2) Isopropyl Alcohol or equivalent (3) Cleaning Patches (4) Grease : Kanto G-381(Yellow) : Used only for Reel S

and Reel T

(1) Cleaning 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. 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 damaged when it comes into contact with the head surface.

(2) Clean the tape transport system and drive system, etc,

by wiping with a cleaning patch wetted with Isporopyl Alcohol.

1 It is the tape transport system which comes into contact

with the running tape. The drive system consists of those parts which moves the tape.

2 Make sure that during cleaning you do not touch the

tape transport system with the tip of a screw driver and no that force is that would cause deforming or damage applied to the system.

2. Required Maintenance

3. Scheduled Maintenance

5) Maintenance Procedure 5-1) Cleaning

NOTES:

About 1

year

One hour

Two hours

Three hours

When

inspection is

necessary

Average hours used per day

About 18

months

About 3

years

4. Supplies Required for Inspection and Maintence

Fig. C-9-4

Drum (Rotating Cylinder)

Head Tip

Coat With Isopropyl Alcohol

Touch this section of cleaning patch to the head tip and gently turn the Drum (Rotating Cylinder)

Cleaning Patch

-79-

MAINTENANCE/INSPECTION PROCEDURE

(1) Greasing guidelines

Apply grease, with a cleaning patch. Do not use excess grease. It may come into contact with the tape transport or drive system. Wipe any excess and clean with clean ing patch wetted in Isopropyl Alcohol.

(2) Periodic greasing

Grease specified locations every 5,000 hours.

5-2) Greasing

NOTE:Greasing Points

1) Loading Path Inside & Top side

2) Base Tension Boss inside Hole

3) Arm Assembly 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

Gear Assembly Up/D

Gear Drive

Gear Sector

Gear Cam

Press

Cam Part

Gear Part

Stopper Part

Bracket Side (L)

Bracket Assembly Door

1) Loading Path Inside & Top side

2) Shaft

3) Gear Rack F/L Moving Section

4) Shaft

5) Lever Tension Groove

6) Clutch Assembly D33 Shaft

7) Brake "S" Rubbing Section

Chassis (Top)

Chassis (Bottom)

Guide Rack F/L Gear Rack F/L

Side

Bottom

inside

Bottom

Cam & Gear Part

Cam Part

Gear Part

1

2

3

4

2

3

5

6

9

7

1

4

5

76

8

Guide Rail

Plate Slider (Top)

Plate Slider (Bottom)

-80-

MECHANISM TROUBLESHOOTING GUIDE

Auto REW doesn't work.

Is the output of END sensor

of supply side "H"?

"H": more than 3.5V

"L": less than 0.7V~1V

Is the voltage across IR LED

between 0.8~1.5V?

Replace LED.

Is the Vcc. voltage of End

sensor 5V?

Check the syscon power.

Replace End sensor.

Check syscon circuit.

NO

YES

NO

1.Deck Mechanism

A.

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/Up, Supply Reel

rotate?

Check syscon circuit.

YES

B.

-81-

MECHANISM TROUBLESHOOTING GUIDE

AUTO STOP.

(PLAY/CUE/REV)

Are there T/up and supply reel pulses.

In Play/Cue/Rev is the pinch

roller in contact with the capstan

shaft.

Replace Reel Sensor.

Is the output of DFG, DPG OK?

Check aligment positions (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.

Replace F/L S/W.

YES

NO

YES

C.

D.

-82-

MECHANISM TROUBLESHOOTING GUIDE

In PB mode Tape Presence

not sensed.

Is the Pinch Roller attached

to the Capstan Motor Shaft?

Check Alignment positions

(page 94)

Does the T/Up

Reel turn?

Replace the Belt.

Is the Belt ok?

Does the Drum

Motor turn?

Are there DPG,

DFG Pulses?

Are the T/Up Supply Reel Sensors

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

NO

Is the terminal voltage of Capstan

Motor supplied more than 4V?

Replace the

Capstan Motor.

Is the Voltage supplied to the

Capstan Motor Vcc1,Vcc2 each?

YES

Check Servo,

Power.

NO

E.

-83-

MECHANISM TROUBLESHOOTING GUIDE

Cassette cannot be inserted.

Does the Lever Switch work?

Is the Lever Switch Spring

damaged or omitted?

Does the F/L switch work

normally?

Replace or add the

Lever Switch Spring.

Is the Vcc of Main P.C.Board

5V?

YES

Check syscon circuit.

YES

Check power circuit.

NO

Is the voltage between cassette

switch and GND on Main

P.C.Board 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

Replace F/L Switch.

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

Does the Arm Assembly F/L work normally?

YES

NO

Does the Opener Door work?

YES

Replace Arm Assembly F/L.

Replace the Opener Door.

2. Front Loading Mechanism

A.

B.

-84-

MECHANISM TROUBLESHOOTING GUIDE

Cassette will not load.

Does the CST insert?

Does the opener Lid work?

Is the opener Door assembled correctly?

Replace the Opener Lid.

Replace the Arm 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

NO

YES

NO

YES

NO

YES

NO

C.

2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111

0251431

Printed in Singapore

AIWA HV-MC90 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual