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HCD-GX470/GX570
Q Q
3 7 6 3 1 5 1 5 0
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.
T E
L
1 3 9 4 2 2 9 6 5 1 3
1.
NEW/FORMER DESCRIPTION
– MAIN Board (Component Side) –
Former : 1-869-003-12
New
: 1-869-003-13
w w w
9-887-123-82
HCD-GX470/GX570
Canadian Model
– KEY RIGHT Board (Component Side) –
Former : 1-869-007-12
New
: 1-869-007-13
x
a o
y
.
i
http://www.xiaoyu163.com
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2.
DIAGRAMS
• Note for Printed Wiring Boards and Schematic Diagrams
Note on Printed Wiring Board:
• X : parts extracted from the component side.
US Model
• 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.
Q
Q
3
7
6
3
u 1 6 3
.
1
http://www.xiaoyu163.com
2
4
9
9
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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
specified.
•
f
: internal component.
• 2 : nonflammable resistor.
• C : panel designation.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
• 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 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: TUNER (FM/AM)
J
: CD PLAY
E
: TAPE PLAY
1
5
1
5
0
8
9
2
4
G
: REC
O
: XM
f
: AUDIO IN
m
c o
HCD-GX470/570
2
9
9
1
/
W or less unless otherwise
4
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.
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8
2
9
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