Sony HCD-GX470, HCD-GX570 Service Manual

SERVICE MANUAL

9-887-123-81

Ver. 1.1 2006.04

Subject: Change of DECK board (Suffix-12)

US Model

Canadian Model

HCD-GX470/GX570

1. NEW/FORMER DESCRIPTION

In this set, DECK board has been changed in the midway of production.

Printed wiring board and schematic diagram of new type, and changed

parts list are described in this supplement-1.

Refer to original service manual and supplement-2 for other information.

– DECK Board (Component Side) –

Former : 1-868-914-11

New : 1-868-914-12

SUPPLEMENT-1

File this supplement with the service manual.

2

HCD-GX470/GX570

2. DIAGRAMS

• Note for Printed Wiring Boards and Schematic Diagrams

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. (p: pF)

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ω and

1

/

4

W or less unless otherwise

specified.

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

• Indication of transistor

• A : B+ Line.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

〈〈 〉〉 : TAPE PLAY

{ }: REC

• Voltages are tak en with a V OM (Input impedance 10 MΩ).

Voltage variations may be noted due to nor mal produc-

tion tolerances.

• Signal path.

E : T APE PLAY (DECK-A)

d : T APE PLAY (DECK-B)

G : REC

C

B

These are omitted.

E

Q

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety.

Replace only with part number specified.