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1
2
FL
C101
R105
Z101
4.7uF/50V
R101
56K
OPEN
VR101B
1K
D
B20K
AV4-8.4-13
R104
2
10K
3
C102
102(C)
R106
10K
B
A
R103
Z102
OPEN
1K
C201
Z201
4.7uF/50V
R201
OPEN
VR101A
IC101B
1K
B20K
1/2 4558
FR
5
AV4-8.4-13
6
R204
C
C202
10K
102(C)
R205
47K
R206
10K2
A
Z202
R203
VR102A
OPEN
1K
500KB
L101
B
A
SHORT
R116
C112
SHORT
OPEN
C111
RL
C301
OPEN
R305
4.7uF/50V
Z301
56K
R301
OPEN
VR301B
1K
B20K
AV4-8.4-13
R304
6
10K
5
C302
B
102(C)
R306
10K
B
A
R303
Z302
OPEN
1K
C401
Z401
4.7uF/50V
R401
OPEN
IC301A
VR301A
1/2 4558
1K
B20K
RR
3
AV4-8.4-13
2
R404
C402
10K
102(C)
R405
47K
R406
10K2
A
A
R403
Z402
VR302B
OPEN
1K
500KB
1
2
3
+15V
R114
22K
IC102A
1/2 4558
5
C108
563(M)
C109
VR103B
R107
104(M)
6
C100K
1K
A
R115
1K
C104
3
563(M)
1
2
R112
1
R109
10K
C106
C103
68K
104(M)
IC101A
563(M)
3
1/2 4558
VR103D
R113
2
R108
C100K
10K
R110
56K
56K
C105
563(M)
C107
563(M)
A
VR102B
R111
500KB
1K
R214 22K
-15V
C208
563(M)
5
C209
VR103A
R207
IC102B
104(M)
6
C100K
1K
1/2 4558
A
R215
1K
5
7
6
7
C204
R212
563(M)
R209
10K
C206
C203
68K
104(M)
563(M)
3
VR103C
R213
R210
2
R208
C100K
10K
56K
56K
C205
563(M)
C207
563(M)
A
R211
1K
R314
IC303A
22K
1/2 4558
IC302B
C308
1/2 4558
563(M)
3
C309
VR303B
R307
104(M)
2
C100K
1K
A
R315
1K
5
C304
7
563(M)
6
7
R312
C303
563(M)
R309
10K
C306
IC303B
IC301B
68K
104(M)
1/2 4558
5
1/2 4558
VR303C
R313
6
R308
C100K
10K
56K
R310
C305
56K
C307
563(M)
563(M)
A
VR302A
R311
R414
500KB
1K
IC403A
22K
1/2 4558
C408
IC302A
1/2 4558
563(M)
3
C409
1
VR303A
R407
2
104(M)
C100K
1K
A
R415
1K
3
C404
563(M)
1
OFF
2
R412
C406
1
10K
104(M)
C403
563(M)
IC403B
5
R409
VR303D
R413
6
R408
68K
C100K
10K
R410
56K
C405
56K
563(M)
1/2 4558
C407
563(M)
A
R411
1K
3
4
5
POWER-AMP[FL]
+15V
C249
104(C)
R152
7
1K
T151
FL-AMP
5551
HI
C153
IC103B
SW101B
10uF/25V
2/24558
OFF
LO
*
IC103A
R153
1/24558
9K1
1
C151
4.7uF/50V
C152
R150
102(C)
I/P
5.6K
C150
4.7uF/50V
*
R151
R154
C149
22K
9K1
104(C)
IC203B
1/2 4558
7
T153
FR-AMP
5401
SW101A
C154
HI
10uF/25V
OFF
R155
3 (S)
1K
LO
2(G)
T100
1(D)
R100
OPEN
1
OPEN
-15V
MUTE
IC203A
1/2 4558
POWER-AMP[FR]
R200
T200
+15V
OPEN
OPEN
1(D)
2(G)
3(S)
R252
1K
T251
5551
C253
10uF/25V
1
RL-AMP
*
R253
SW301A
9K1
HI
OFF
C252
R250
102(C)
LO
5.6K
C250
C251
*
4.7uF/50V
4.7uF/50V
R254
7
R251
9K1
22K
T253
5401
C254
10uF/25V
R255
1K
RR-AMP
HI
SW301B
-15V
LO
7
4
5
6
R164
T160
100
C159
2SC2383
R156
47(C)
1K
T155
5401
T152
5551
C157
*
T158
47(C)
R165
2SC2383
4K7
R157
R158
100
100
T157
R170
R163
2N5551
0.12/3W
560
R168
220
C156
R169
100uF/25V
220
R171
R159
R160
0.12/3W
100
100
R166
C158
1K8
47(C)
T154
5401
T156
T159
5551
2SA1013
C155
R162
15K
R161
15(C)
1K
R167
C161
T161
100
47(C)
2SA1013
R264
T260
C259
100
2SC2383
47(C)
R256
1K
T255
5401
T252
5551
*
C257
T258
47(C)
R265
2SC2383
4K7
R257
R258
100
100
T257
R268
R270
R263
2N5551
220
0.12/3W
560
R269
C256
220
100uF/25V
R271
0.12/3W
R259
R260
100
100
R266
C258
1K8
47(C)
T254
5401
T256
T259
5551
2SA1013
C255
R262
15K
R261
15(C)
1K
R267
C261
100
T261
47(C)
2SA1013
POWER-AMP(RL]
[SAME AS FL-CH]
POWER-AMP(RR]
[SAME AS FR-CH]
6
7
8
VCC
T164
KTD718
T166
PROTECTION
2N5551
R174
1K5
T162
KTD718
R175
C162
R172
30K
151(C)
0.12/3W
O/P
R177
R178
R173
0.12/3W
T163
TKB688
C163
104(M)
T165
TKB688
R176
T167
T267
56K
VEE
9014
9014
SPK01
FL-
VCC
FL+
FR-
C164
C97
100uF/16V
OPEN
FL+
T264
KTD718
FRONT OUT
PROTECTION
T266
2N5551
GND
R274
1K5
T262
KTD718
R276
R275
56K
C262
R272
30K
151(C)
0.12/3W
O/P
R273
D251
R278
0.1/3W
R277
4.7/0.5W
T263
TKB688
680/2W
C263
104(M)
T265
TKB688
VEE
SPK02
RL-
O/P
RL+
RR-
PROTECTION
C99
OPEN
RR+
REAR OUT
O/P
GND
PROTECTION
ACA-2664-AMP-PA4-4.SCH
7
8
D
C
B
A
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