Zenith C27A25, Service Manual

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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
A
B
C
D
E
F
G
1 2 3 4 5 6 7 8 9 10
6-3 XC SHEET 3 CM154
Audio Processor
27
28
29
30
31
32
33
34
35
36
37
38
26
25 24
23
22
21
20
19
18
17
16
15
39
40
41
42
43
44
45
46
47
48
14
13
12
11
10
9
8
7
6
5
4
3
2
1
E
B
C
E
B
C
E
B
C
9 3
7
8
4
6
5
2
1
10
1
2
3
4
E
B
C
+9V
SW
TO_TV
SPEAKERS
1.5
2.1
5.4
1.5
2.1
5.4
4.1
4.1
4.1
4.1
4.1
4.1
4.1
0
4.8
4.8
0
0
4.1
4.0
0
4.1
3.9
5.3
4.1
1.3
1.2
0
4.5
8.8 4.1
4.1
3.7
4.0
4.1
4.0
4.1
1.7
4.1
4.1
1.7
4.1
0.7
0.6
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
BASSL2
TRE-R
TRE-L
SURRIN
SURROUT
LSOUT-R
LSOUT-L
NC
SDA
SCL
DGND
SAD
MAININ
MAINOUT
NC
PCINT1
PCINT2
PLINT
COMPIN
VGR
IREF
GND
SAPTC
VCC
SUBOUT
STIN
NOISETC
SAPOUT
SAPIN
VE
VEWGT
VETC
VEOUT
VCAIN
VCATC
VCAWGT
VLDC
VLTC
AUX1-R
AUX1-L
AUX2-R
AUX2-L
TVOUT-R
TVOUT-L
SURRTC
BASSR1
BASSR2
BASSL1
221-1127
16V
0.015
50V
6800pF
16V
0.015
50V
6800pF
16V
0.022
25V
0.01
4.7uF
50V
1M
SHT.7
RIGHT-SW
SHT.7
LEFT-SW
SHT.7
VM-OUT-L
3.3
1uF
50V
10uF
50V
10%
LOW-LEAKAGE
100
3.3uF
50V
10%
LOW-LEAKAGE
10uF
25V
4.7uF
50V
50V
5600pF
3K
3.3K
10uF
25V
100uF
16V
10uF
25V
25V
0.01uF
*
2.2K
470uF
25V
SHT.4
PWR-MUTE
4.7uF
50V
ABL
+15
10uF
50V
1%
61.9K
4.7uF
50V
10K
1uF
50V
10uF
50V
100K
50V
0.012
1M
0.047
50V
50V
PROV
50V
PROV
10uF
50V
10K
0.47uF
50V
25V
4700pF
20K
10K
*
2.2K
47uF
50V
25V
4700pF
330
100
0.47uF
50V
470
50V
0.01uF
8.2K
200K
47uF
50V
330
100
100uF
16V
470
25V
100uF
50V
0.01uF
SHT.7
VM-OUT-R
SHT.5
COMP-AUD
330
470uF
25V
1000uF
25V
50V
0.1
50V
0.1
50V
2700pF
1K
221-598-01
100uF
16V
50V
0.1
680
25V
10uF
1K
100
150
680
150
3.9K
100uF
25V
3.3
SHT.10
SHT.7
SHT.4
SDA
VSW
+18
SHT.10
SHT.7
SHT.5
SHT.4
SCL
IC1400
C1401M
C1402M C1403M
C1404M
C1405M C1406M
C1407
R1403M
R863
C1408
C1409
R1402M
C1414
C1419
C1420
C1411M
R1407M
R1408M
C1422
C1424
C1410
C1425M
R852M
C855
C1423
C1421
R1411M
C1418
R1410M
C1417
C851
R1406M
C1412M
R1405M
C1415
C1426M C1427M
C861
R851M
C1506
C852M
R1500M
R861M
R862M
Q 150 2
C1505
C862M
R1510M
R1509M
C1503
R1508M
Q 150 1
C1501M
R1409M
R1501M
C1502
R1505M
R1504M
C853
R1503M
C843
C1504M
R843
C865
Q150 0
C841
C854M
C864M
C1416M
R1507
IC800
C863
C842M
R1511
C1413
R1502
R1401M
R854M
R1506
9S4
R864M
R1404M
C1500
Q800
R853
121-1310A
121-1310A
121-1310A
58-526-04
121-1310A
This schematic applies to
the following XC models:
C27C35T(F)
C27C41T(F)
LGC29C35TM