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A
B
PRINTED CIRCUIT BOARD (Foil side)
1
MAIN P.C.B. (1)
2
-27V
-12V
-HB
-LB
TRAC
E
3
4
L
R
5
FRONT
SPEAKERS
6
C
FROM: MAIN(3)
-LB
KGND
+12M
LB
-27V
-12V
12V
FAC2
FAC1
AMPMUT
UGND
THER
VPRT
SRON
IPRT
PREOR
DGND
PREOL
AGND
PREOC
Semiconductor Location
Ref. No.
Location
Ref. No.
Location
D202
A3
Q201
B3
D203
A3
Q202
B3
D204
A3
Q204
A3
D205
C4
Q208
C4
D206
B4
Q209
C4
D208
C4
Q210
B4
D209
B4
Q212
B4
D211
B2
Q213
C4
D212
B2
Q214
B4
D213
B2
Q218
A3
D217
A3
Q219
C4
Q220
B4
Ref. No.
Location
IC201
A4
D
E
MAIN P.C.B. (2)
FROM: POWER CORD
AC1
AC2
GY
BR
TO: MAIN(3)
FROM: INPUT(1)
MAIN P.C.B. (3)
HAC
LAC
E
E
E
LAC
HAC
CDAC2
CDAC1
FAC2
FAC1
#10
W203
TO: MAIN (1)
TO: MAIN (2)
#9
W204
TO: MAIN (1)
58
F
G
GX-505/GX-505VCD
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
ACIN
SUBB
PRON
SUBE
Semiconductor Location
Ref. No. Location
Ref. No.
Location
D214
F2
Q216
F2
D215
D3
Q217
E2
D216
E2
MAIN P.C.B. (4)
BR
OR
BE
WH
BR
OR
YE
YE
RE
R, T only
VOLTAGE
SELECTOR
SW204
110V
1-2/5-6
120V
2-3/6-7
240V
3-4/7-8
220V
4-5/8-1
H
BE
RE
WH
59
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