A
B
C
D
E
F
G
H
1
2
3
4
5
6
GX-505/GX-505VCD
58
59
■
PRINTED CIRCUIT BOARD (Foil side)
-27V
-12V
-HB
-LB
TRAC
E
C
DAC
2
C
DAC
1
FA
C
2
FA
C
1
CDGND
CDGND
CDB
-LB
KGND
+12M
LB
-27V
-12V
12V
FAC2
FAC1
AMPMUT
UGND
THER
VPRT
SRON
IPRT
PREOR
DGND
PREOL
AGND
PREOC
Q218
Q204
W205
#13
T
O
: MAIN(5)
FROM: MAIN(3)
T
O
: CD /
VCD(1)
FR
OM:
INPUT(1)
W201
#11
1
22
L
R
FRONT
SPEAKERS
MAIN P.C.B. (1)
ACIN
SUBB
PRON
SUBE
AC2
GY
BR
AC1
FROM: INPUT(1)
TO: MAIN(3)
FROM: POWER CORD
MAIN P.C.B. (2)
HAC
LAC
E
E
E
LAC
HAC
CDAC2
CDAC1
FAC2
FAC1
BE
RE
WH
OR
BR
BE
BR
BR
GY
WH
OR
YE
RE
YE
R, T only
VOLTAGE
SELECTOR
TO: MAIN (2)
TO: MAIN (1)
TO: MAIN (1)
#10
#9
W203
W204
MAIN P.C.B. (3)
MAIN P.C.B. (4)
110V
1-2/5-6
2-3/6-7
3-4/7-8
4-5/8-1
120V
240V
220V
SW204
CIRCUIT CHANGES BY MARKET.
U, C
R, T
A, B, G, L
Q217
X
O
X
HS202
X
O
X
D216
X
O
X
C260, 262
X
O
X
R274, 275
X
O
X
R276
O
X
X
J201
O
X
O
O : USED
X : NOT USED
Ref. No.
Location
D202
A3
D203
A3
D204
A3
D205
C4
D206
B4
D208
C4
D209
B4
D211
B2
D212
B2
D213
B2
D217
A3
Ref. No.
Location
IC201
A4
●
Semiconductor Location
Ref. No.
Location
Q201
B3
Q202
B3
Q204
A3
Q208
C4
Q209
C4
Q210
B4
Q212
B4
Q213
C4
Q214
B4
Q218
A3
Q219
C4
Q220
B4
Ref. No.
Location
D214
F2
D215
D3
D216
E2
●
Semiconductor Location
Ref. No.
Location
Q216
F2
Q217
E2