HCD-X1V - Sony Audio Service Manual (repair manual). Page 4

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7-19. Printed Wiring Board

– MAIN Board (Conductor Side) – ................................. 51

7-20. Schematic Diagram – MAIN Section (1/6) – .................. 52
7-21. Schematic Diagram – MAIN Section (2/6) – .................. 53
7-22. Schematic Diagram – MAIN Section (3/6) – .................. 54
7-23. Schematic Diagram – MAIN Section (4/6) – .................. 55
7-24. Schematic Diagram – MAIN Section (5/6) – .................. 56
7-25. Schematic Diagram – MAIN Section (6/6) – .................. 57
7-26. Printed Wiring Board

– AMP Board (Component Side) – ................................. 58

7-27. Printed Wiring Board

– AMP Board (Conductor Side) – ................................... 59

7-28. Schematic Diagram – AMP Board (1/3) – ...................... 60
7-29. Schematic Diagram – AMP Board (2/3) – ...................... 61
7-30. Schematic Diagram – AMP Board (3/3) – ...................... 62
7-31. Schematic Diagram – KEY Section – ............................. 63
7-32. Printed Wiring Board – LED Board – ............................. 64
7-33. Printed Wiring Boards – KEY/POWER-SW Boards – ... 65
7-34. Printed Wiring Board – DISPLAY Board – .................... 66
7-35. Schematic Diagram – DISPLAY Board – ....................... 67
7-36. Printed Wiring Board

– POWER Board (Component Side) – ............................ 68

7-37. Printed Wiring Board

– POWER Board (Conductor Side) – .............................. 69

7-38. Printed Wiring Board – LF Board – ................................ 70
7-39. Schematic Diagram – POWER SUPPLY Section – ........ 71

8-1.

Front/Side/Top Panel Section .......................................... 98

8-2.

MAIN Board Section ....................................................... 99

8-3.

POWER Board Section .................................................. 100

8-4.

DVD Mechanism Deck section-1 (CDM69EH) ............. 101

8-5.

DVD Mechanism Deck section-2 (CDM69EH) ............. 102

8-6.

DVD Mechanism Deck section-3 (CDM69EH) ............. 103

8-7.

DVD Mechanism Deck section-4 (CDM69EH) ............. 104

8-8.

DVD Mechanism Deck section-5 (CDM69EH) ............. 105

8-9.

DVD Mechanism Deck section-6 (CDM69EH) ............. 106

8-10. Optical Pick-Up Section

(KHM-310CAB or KHM-313CAB) .............................. 107

............................... 108

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.

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.

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

1. Press the  

I

/1

  button to turn on the system.

2. Press the  

FUNCTION

  button repeatedly to select “DVD”.

3. While pressing the

x

button, press the  

Z

 

button until

“UNLOCKED” displayed on the fluorescent indicator tube
(around 5 seconds).

When “LOCKED” is displayed, the tray lock is not released by turning
power on/off with the

I/

1

button.

1. Press the  

I

/1

  button to turn on the system.

2. Press the  

FUNCTION

  button repeatedly to select “DVD”.

3. While pressing the

x

button, press the  

N

button until

“DEMO OFF” displayed on the fluorescent indicator tube
(around 5 seconds).

When “DEMO PLAY” is displayed, the DEMO play lock is not
released by turning power on/off with the

I/

1

button.