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2

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• Keep the temperature of the soldering iron around 270 °C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

0

0

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher

than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 

°C.

Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.

This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.

3

  Extension cable (J-2501-242-A, J-2501-245-A) is required to
  inspect the DVD mechanism deck.

  Perform the operation check of the VIDEO mechanism deck
  after the VCR board and the VIDEO mechanism deck are
  turned upside down.

J-2501-242-A (1mm/11P/L300)

J-2501-245-A (1mm/23P/L300)

DVD mechanism deck

SMPS board

VCR board

VIDEO mechanism deck

4

...................................................................

5

2-1.

Cover, Front Panel Assembly .......................................... 12

2-2.

DISPLAY/KEY Board .................................................... 13

2-3.

Video Mechanism Deck .................................................. 13

2-4.

DVD Mechanism Deck ................................................... 14

2-5.

SMPS Board .................................................................... 14

2-6.

VCR Board ...................................................................... 15

2-7.

DVD & AMP Board ........................................................ 15

3-1.

VCR Section Electrical Adjustment ................................ 16

3-2.

Electrical Troubleshooting Guide .................................... 17

3-3.

DVD & AMP Section Electrical
Troubleshooting Guide .................................................... 32

......................... 40

5-1.

Block Diagram – DVD (OVERALL) Section – .............. 52

5-2.

Block Diagram – DVD (AMP) Section – ........................ 53

5-3.

Block Diagram – VCR/PANEL Section – ....................... 54

5-4.

Block Diagram – VCR (Y/C) Section – .......................... 55

5-5.

Block Diagram – VCR (TU-VPS) Section – ................... 56

5-6.

Block Diagram – VCR (HI-FI) Section – ........................ 57

5-7.

Block Diagram – VCR POWER Section – ...................... 58

5-8.

Block Diagram – POWER Section – ............................... 59

5-9.

Printed Wiring Board
– DVD & AMP Section (Component Side) – ................. 60

5-10. Printed Wiring Board

– DVD & AMP Section (Conductor Side) – ................... 61

5-11. Schematic Diagram

– MPEG Section – [DVD & AMP Board] (1/6) .............. 62

5-12. Schematic Diagram  – RF & SERVO Section –

[DVD & AMP Board] (2/6) ............................................. 63

5-13. Schematic Diagram  – AUDIO, 

µ

_COM Section –

[DVD & AMP Board] (3/6) ............................................. 64

5-14. Schematic Diagram  – DIGITAL AMP Section –

[DVD & AMP Board] (4/6) ............................................. 65

5-15. Schematic Diagram  – PWM & CODEIC Section –

[DVD & AMP Board] (5/6) ............................................. 66

5-16. Schematic Diagram  – INTERFACE Section –

[DVD & AMP Board] (6/6) ............................................. 67

5-17. Printed Wiring Board – VCR Section – ........................... 70
5-18. Schematic Diagram  – VCR SYSTEM Section –

[VCR Board] (1/6) ........................................................... 71

5-19. Schematic Diagram  – AVCP/SECAM Section –

[VCR Board] (2/6) ........................................................... 72

5-20. Schematic Diagram  – HI-FI/SWITCH Section–

[VCR Board] (3/6) ........................................................... 73

5-21. Schematic Diagram  – TUIF/NICAM/VPS Section –

[VCR Board] (4/6) ........................................................... 74

5-22. Schematic Diagram  – SCART/SWITCH Section–

[VCR Board] (5/6) ........................................................... 75

5-23. Schematic Diagram  – VCR POWER Section –

[VCR Board] (6/6) ........................................................... 76

5-24. Printed Wiring Board – DISPLAY/KEY Section – ......... 78
5-25. Schematic Diagram  – DISPLAY/KEY Section – ........... 79
5-26. Printed Wiring Board – SMPS Section – ........................ 80
5-27. Schematic Diagram  – SMPS Section – .......................... 81

6-1.

Front Panel Section ......................................................... 83

6-2.

Overall Section ................................................................ 84

6-3.

DVD Mechanism Deck ................................................... 85

6-4.

Video Mechanism Deck -1 .............................................. 86

6-5.

Video Mechanism Deck -2 .............................................. 87

6-6.

Video Mechanism Deck -3 .............................................. 88

.................................. 89

5

This section is extracted
from instruction manual.

M L

DVD: Go to NEXT chapter/track. Press and hold for a fast forward search.

VIDEO: Advances the tape from STOP mode or for fast forward picture search.

X

Pause playback or recording 

temporarily.

z

To record normally or to activate Instant Timer Recording.

A

Opens or closes
the disc tray.

Point the DVD/VCR Receiver remote

control here.

Display window 
Shows the current sta-
tus of the DVD/VCR
Receiver.

Disc Tray (DVD deck)
Insert a disc here.

@ 

1

Switches the DVD/VCR Receiver ON and OFF.

l m

DVD: Go to beginning of current chapter/track or to previous chapter/track.

Press and hold for a fast reverse search.

VIDEO: Rewinds the tape from STOP mode or for fast reverse picture search.

H

To play back a disc or 

a recorded tape. 

x

Stops playback or recording.

INPUT SELECT 
Selects the VIDEO deck's
source (Tuner, AV1, AV2,
AV3 OPT or AV3).

Scans up or down through

memorized channels or radio

frequencies (stations).

Selects Radio opera-

tion mode.

AV 3 IN (VIDEO/AUDIO (Left/Right)) 
Connect the audio/video output of an 
external source (Audio system, TV/ Monitor,
another VCR).

Insert a video cassette here.

A

Ejects the tape in the VIDEO deck.

Adjusts sound level of speakers.

Toggles control

between the DVD deck

and the VIDEO deck.