Service manual
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X“ IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL SYMBOLS WITH “M” ON END OF DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT
6-2
GA SHEET 2
GA1 AUDIO PROCESSOR
1211109
G
F
E
D
C
B
A
87654321
+9V
SW
PROVISION
PROVISION
TO R1209
"AA" FLYWIRE
9-1950-01
ONLY ON
(FIXED)
ONLY ON
R9745
1K
9-1950-01
9-1950-01
ON
ON
ONLY
ASSY
9-1869-01
ASSY’S ONLY
9-1870-01
L.C. STEREO
CHANNEL
RIGHT
LEFT CHANNEL
9-1871-01
9-1871-01
4.4
0
3.8
3.6(MAX)
.48(MIN)
WF20
1.56V
1 mS
WF19
SPEAKERS
TO T.V.
0
4.8
0
5.1
9.5
0.3
0.1
0
0
4.8
4.8
4.8
9.6
14.3
14.3
6.56.5
00
6.56.5
6.46.4
1.11.1
4.14.1
6.36.3
00
6.36.3
000
0
0
0.5
6.8
14.3
3.3
3.3
3.7
0
4.8
7.5
3.0
3.0
3.8
3.0
3.0
3.13.8
3.8
3.8
3.8
3.8
0
0
4.4
3.3
3.3
3.0
4.7
11.7
6.5
5.8
6.5
1.2
0.5
4.5
2.4
1.8
5.6
1.3
0.5
7.0
2.4
1.8
5.4
1.3
0.6
5.0
4.8
4.1
SPEAKER
TO MONO
AMP
AMP
VOL
VOL
DC
DC
ONLY
ONLY
ASSY’S
ASSY’S
STEREO
STEREO
MTS
MTS
5
7
4
1
2
86
3
E
B
C
1
2
1
2
3
4
1
2
1
2
8
7
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
1
2
E
B
C
13
12
11
10
9
8
7
6
5
4
3
2
1
24
23
22
21
20
19
18
17
16
15
14
1312
11
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
STEREO-IND
STEREO-IND
FORCEDMONO
FORCEDMONO
AUX-L
AUX-R
COMP-AUD
COMP-AUD
EXT-VIDEO
MS0
MS1
AUXSWITCH
SAP-IND
221-981
10uF 50V
16V
0.022
50V2700pF
50V
0.1
50V
0.1
10K
AUD
B+
121-1311A
1.5K
47
16V
0.022
1uF
50V
50V
4700pF
50V
0.22
5.6K
47uF 25V
10K(9-1950-01)
3.3K
3.3K
3.3K
PROV
15K
1uF
50V
100uF
16V
50V
4700pF
13K
2.2uF 50V
0.47uF
50V
COMP-AUD
SHT.3
SHT.3
STEREO-IND
AUXSWITCH
SHT.3
SHT.3
FORCEDMONO
SHT.3
EXT-VIDEO
EXT
INPUT
RIGHT
AUDIO
VOL-CTRL
SHT.3
50V
4700pF
470uF
16V
50V
PROV
AMP
B+
AMP
B+
VSW
+12
1
A
103-279-18
9.1V
16V
470uF
50V
0.1
4.7
0.01
25V
1K
WF
20
+14V
INPUT
LEFT
AUDIO
EXT
162-40-01
BALANCE
AUDIO
1K
GAIN
VIDEO
2K
162-18
162-18
470uF
16V
50V
4PF
50V
PROV
50V
1uF
0.47uF
50V
10uF
50V
1uF
50V
121-1310A
121-1310A
121-1310A
121-1310A
121-1310A
121-1310A
121-1310A
VDC
+12
12K
50V
100pF
EXT
VIDEO
INPUT
A-18577
100
AA
AA
75
VV
680
56K
1K
470
10K
1K
150
470
100
4.7K
10K
1K
220
AMP
B+
470
150
1K
224-179
378KHz
A
56K
27K
1uF
50V
680
100K
27K
180
12K
(MTS) 82
1/2W
100
4.7K
1W
10
(LCS,MTS)
(MONO)
1W2
AMP
B+
16V
330uF
47K
50V
1000pF
1
16V
330uF
50V
0.1
16V
100uF
50V
0.1
25V
47uF
50V
10uF
25V
47uF
50V
10uF
50V
PROV
1K
103-279-18
9.1V
VSW
+12
121-1310A
2200uF(STEREO)
25V
1000uF(MONO)
470
47
103-279-18A
9.1V(MTS)
103-279-15A
7.5V(LCS)
AUD
B+
10K
VDC
+12
22uF
50V
1uF
50V
680
100
WF
19
SBX1837-01
9-1867
GND
MPXIN
ST-IND
SAP-IND
MS1
MS0
FORCED
FSAP
MUTE
ROUT
LOUT
L+R
VCC
50V
1uF
SHT.3
SAP-IND
SHT.3
MS1
SHT.3
MS0
AUD
B+
221-907
B+
AUD
221-1163
LA4285
VDC
+12
10K
16V
470uF
100
VSW
+12
221-1163
LA4285
IC801
C1416
C1420M
C1418M
C1411
C1417
R1412
Q1400
R1409M
R9740
C1412M
C1404
C1401M
C1403
R1404M
C1409
R1453M
R1407M
R1451M
R1402M
R1410M
C1410
C801
C1433
R1411M
C1415
C9707
J1
C1432
C9714
C1430M
R851
9S4
ZD9701
C802
C803
R803
9M4
C821M
R852
J1
IC9702
R9745
R9738
IC9700
IC9701
C9708
C9716
C9717M
C9709
C9703
C9712
C1450
Q9702
Q9703
Q9705
Q9706
Q9701
Q9700
Q9704
R1450M
C9713
J1
R9709M
R9728
R9706
R9717
R1421
R9730
R9725M
R9726M
R9727M
R9724M
R9736M
R9735M
R9734M
R9739M
R9737M
R9711M
R9715M
R9714M
CR1401
R9705
R9707M
C1451
R9718
R9732M
R9720M
R9731M
R1452M
R1423
R802M
R820
C853
R9729M
C806M
R831
C833
C832
C9704
C852
C851C850
C831C830
C1431M
R832M
ZD9702
Q1402
C820
R9704
R9708
ZD1400
R1420M
C1490
C1423
R801M
R9721M
MTS
C9705
IC1400
IC850
R9710
C9711
R9712
IC830
Composite Audio
M ODULE
009-01869 009-01869-01 009-01870 009-01870-01 009-01871 009-01871-01 009-01950 009-01950-01 009-01990 009-01990-01 009-01991 009-01991-01 009-01992
FEATURES MONO MONO LC STEREO LC STEREO MTS STEREO MTS STEREO
MONO W/JA CKS MONO W/JA CKS MONO MONO LC STEREO LC STEREO MTS STEREO
COMPONENT LEVEL
REPA IR ONLY