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HCD-GX470/GX570
SERVICE MANUAL
Ver. 1.2 2006.06
SUPPLEMENT-2
File this supplement with the service manual.
Subject: Change of MAIN and KEY RIGHT boards
(Suffix-13)
In this set, MAIN and KEY RIGHT boards have 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-2.
Refer to original service manual and supplement-1 for other information.
1.
NEW/FORMER DESCRIPTION
– MAIN Board (Component Side) –
Former : 1-869-003-12
New
: 1-869-003-13
9-887-123-82
HCD-GX470/GX570
US Model
Canadian Model
– KEY RIGHT Board (Component Side) –
Former : 1-869-007-12
New
: 1-869-007-13
2.
DIAGRAMS
Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
X : parts extracted from the component side.
Y : parts extracted from the conductor side.
f
: internal component.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Indication of transistor
C
Q
These are omitted.
B
E
Q
B
C E
These are omitted.
1
HCD-GX470/570
Note on Schematic Diagram:
All capacitors are in F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
All resistors are in
and
1
/
W or less unless otherwise
4
specified.
f
: internal component.
2 : nonflammable resistor.
C : panel designation.
Note:
Note:
The components identi-
Les composants identifiés par
fied by mark 0 or dotted
une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety.
Ne les remplacer que par une
Replace only with part
pièce por tant le numéro
number specified.
spécifié.
A : B+ Line.
B : B– Line.
Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : TUNER (FM/AM)
(
) : CD PLAY
: TAPE PLAY
{
} : TAPE REC
[
] : XM
Voltages are taken with a VOM (Input impedance 10 M ).
Voltage variations may be noted due to normal produc-
tion tolerances.
Signal path.
F
: TUNER (FM/AM)
J
: CD PLAY
E
: TAPE PLAY
G
: REC
O
: XM
f
: AUDIO IN
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