Zenith A19A02D Service Manual page 90

1 2 3
G
WF19
1.56V
IC1400
1 mS
C1401M
4700pF
R1404M
4.7 1
5.6K
C1403 50V
3.0 2
0.22
C1404
50V
1uF
3.3 3
50V
19
3.3 4
WF
4.4 5
COMP-AUD
0 6
F
R1407M
0 7
3.3K
3.8 8
C1409
9
3.8
C1410
1uF
R1411M R1410M
47uF 25V 10
3.8
13K 15K
50V
B+ 11
3.8
C1412M
R1409M AUD
R1402M
12
3.8
1.5K
0.022
PROV
R1412
16V C1411 221-907
10K
0.1
4.4 50V
E
Q1400
E
3.8 B 121-1311A
C
0
Composite Audio
IC9702
162-40-01
+12
VDC
1
D
R9704
470
2
C9704
100uF
R9729M
16V
47K Q9704
121-1310A
3
2.4
4.5
C
C9712
EXT 2 R9730 B
VIDEO 4
10uF 470
E
1 50V
1.8
INPUT
C9713
R9731M
R9728 R9732M
100pF
C 180
75 100K
50V
V V
+12
VDC
J1 J1 J1 1
A-18577
Q9702
R9717
121-1310A
56K 2
7.0
2.4
C
C9707
2 R9718
B
EXT
3
680
AUDIO 0.47uF
E
1
50V 1.8
LEFT
R9720M
IC9701
R9721M
INPUT 27K
ZD9701 100
B
9.1V 162-18
A A A
103-279-18
+12
VDC
1
Q9700
121-1310A
R9705
2
56K
C
AUDIO C9703
2 R9706
B
RIGHT
680 3
0.47uF
E
1
INPUT 50V
R9707M
R9709M
EXT
27K
ZD9702 100 IC9700
9.1V
A
A A A 162-18
103-279-18
COMPONENT LEVEL MODULE
009-01869 009-01869-01 009-01870 009-01870-01 009-01871
REPAIR ONLY
FEATURES MONO
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER "X" IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
GA1 AUDIO PROCESSOR
4 5 6
9-1870-01
L.C. STEREO
ASSY'S ONLY
C1423
1uF
24
3.3
50V
23 CR1401 FORCEDMONO
3.3
224-179
378KHz
22 3.7
STEREO-IND
21 0
B+
20 4.8
AUD
19 7.5
C1418M
C1420M
18 3.0
0.022
C1417
0.1 16V
2700pF 50V
17 3.0
C1416
16 50V
3.8
C1415
10uF 50V
15
3.0
2.2uF 50V
14
3.0
13
3.1
+12 B+
AUD
VSW
R1423
100
ZD1400
C1490
(MTS) 82
7.5V(LCS)
22uF
1/2W
103-279-15A
50V
9.1V(MTS)
103-279-18A
+12
VSW
R9708
47
8 R9738
VIDEO
2K
GAIN C9708 C9714
470uF 470uF
R9734M
16V 16V
10K R9737M
7 11.7
220 C
B
6.5
6.5
Q9706
C
E
6
B 121-1310A
1.2 Q9705 5.8
121-1310A
R9740 EXT-VIDEO
E
R9735M
0.5
5 47
4.7K
C9717M
R9736M
R9739M
PROV
C9716 100
1K +12
50V
VSW
4PF
50V
R9712
100
C9711
R9725M 470uF
6 Q9703
10K 16V
121-1310A
C9709
AUX-L
5.6
C
5 R9724M 1uF
B
470 50V
1.3
E 9-1871-01
R9745
(FIXED)
4 R9726M 0.5
1K ONLY ON
MTS
9-1950-01
1K
STEREO
R9727M
150 AUDIO ASSY'S
BALANCE
R9745
ONLY
1K
R9711M
6
R9710 470
10K C9705
AUX-R
5.4
C
5 1uF
B
50V
Q9701
1.3
121-1310A
E
R9714M
4
0.6
1K
R9715M
PROVISION
150
ON
9-1950-01
MONO LC STEREO LC STEREO MTS STEREO MTS STEREO MONO W/JACKS MONO W/JACKS MONO
7 8 9
B+
+14V
AMP
R820
(LCS,MTS) 2 1W
(MONO) 10 1W
C821M
C820
0.01
2200uF(STEREO)
25V
25V
1000uF(MONO)
+9V
SW
5.0
C
AUXSWITCH R1420M
B Q1402
121-1310A
10K 4.8
E
"AA" FLYWIRE 4.1
TO R1209
ONLY ON
R1421
1K
C1430M
PROV
50V
C1451
R1452M
12K
1uF
50V
C1433
R1453M
4700pF
3.3K
50V
10K(9-1950-01)
PROVISION
ON
C1431M
9-1950-01
PROV
50V
C1450
R1450M
12K
1uF
C1432 50V
R1451M
4700pF
3.3K
50V
WF
20
WF20
3.6(MAX)
.48(MIN)
009-01871-01 009-01950 009-01950-01 009-01990 009-01990-01 009-01991 009-01991-01 009-01992
ALL SYMBOLS WITH "M" ON END OF DESIGNATOR
6-2
INDICATE SURFACE MOUNTED COMPONENT
10 11 12
COMP-AUD
9-1869-01
B+
ASSY
AMP
ONLY
0
14.3
IC801
5 1 221-981
9M4
4
0
C802
C806M
2
R802M
1000pF
4.7K
6.8 2
50V 470uF
C803
0.5 3 16V
0.1
1
50V
6 8 7
C801
0 0 0
100uF
R803
16V TO MONO
R801M 4.7
SPEAKER
680
IC830
221-1163 LA4285
LEFT CHANNEL
DC
VOL AMP
B+
AMP
14.3
C833
330uF
C832 16V
9S4
C830 C831 0.1
10uF 47uF 50V
50V 25V
1
R832M
R831
1 2
1K
IC850
3
221-1163
LA4285
4
DC
AMP
VOL
B+
RIGHT
AMP
TO T.V.
CHANNEL
SPEAKERS
C853
14.3
330uF
C852
16V
0.1
C850 C851 50V
R852 10uF 47uF
50V 25V
R851
1K
1
VOL-CTRL
SHT.3
AUXSWITCH
SHT.3
STEREO-IND
SHT.3
FORCEDMONO
SHT.3
SAP-IND
SHT.3
MS1
SHT.3
MS0
SHT.3
B+
MTS
AUD
9.6 1 9-1867
VCC
2 SBX1837-01
4.8 L+R
3
4.8
LOUT
4
4.8
ROUT
5
0
9-1871-01
MUTE
6
0
MTS
FSAP
FORCEDMONO 7
0.1
STEREO
FORCED
MS0 8
0.3
ASSY'S
MS0
MS1 9
9.5
ONLY
MS1
SAP-IND 10
5.1
SAP-IND
STEREO-IND 11
0
ST-IND
COMP-AUD 12
4.8
MPXIN
13
0
GND
EXT-VIDEO
MONO LC STEREO LC STEREO MTS STEREO
GA SHEET 2
SHT.3
SHT.3