Zenith A19A02D, Руководство по обслуживанию

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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
6-4
GA SHEET 4
GA1 VIDEO PROCESSOR
12 11 10 9
G
F
E
D
C
B
A
8 7 6 5 4 3 2 1
NFB
AFC
VERT-DRIVE
C
O
M
P
-V
ID
EO
EXT-VIDEO
SYNC
C1202M
PROV PROV
C1208
9-1950
ONLY ON
TO R1452M
"A" FLYWIRE
0.3V
WF14
1.0V
WF13
1.8V
WF12
17.5V
WF11
4.12V
WF10
0.78V
WF9
2.8V
WF8
2.6V
WF7
3.40V
20 uS
20 uS
20 uS
20 uS
20 uS
20 uS
20 uS
20 uS
20 uS
WF6
0
2.8
4.5
2.8
0
0
7.9
7.9
8.9
3.9
8.9
1.8
1.2
4.6
4.7
3.4
5.1
1.6
2.9
3.3
3.0
0
6.0
7.5
1.2
0.4
1.5
1.2
5.0
5.0
8.9
6.3
5.0
4.9
0.8
2.0
1.9
2.0
3.6
4.7
4.8
4.7
0
0
4.8
6.2
4.5
8.8
2.0
2.0
0
4.5
3.2
2.2
3.8
5.6
0
2.0
2.7
0
1.9
2.6
0
2.0
2.7
0
3.4
3.9
0
3.4
3.9
6.9
0.9
1.6
9.0
3.2
2.6
9.0
3.9
3.3
MODULE
OUTPUT
VIDEO
TO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28 29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
1
2
3
4
5
E
B
C
E
B
C
E
B
C
5
1
2
3
4
1 2 3
6
4
1
2
3
E
B
C
E
B
C
E
B
C
E
B
C
E
B
C
82K
25V
0.01
REXT
LEXT
DE-EMPH
AUDIN
LIMITER
SIFGND
PIFTANK
PIFTANK
SIF/VCC
TV/DET
VCC
CIN
AFT
YIN
DC
VSW-OUT
BLK/DET
VIN
ACL
T-VIN
ABL
DGND
32FH
HAFC
H-OUT
SYNC
FLYBACK
SHUTDOWN
SDA
SCL
HVCC
VSEPFIL
VRAMP
NFB
VPULSE
BOUT
GOUT
ROUT
D-VCC
BOSD
GOSD
ROSD
FBLNK
GND
VCXO
APCFIL
LOOPFIL
PIFVCC
PIF-IN
PIF-IN
PIFGND
AGCFIL
SIF
RF-AGC
SND-OUT
SND-OUT
221-01165
Block Diagram #3
Sheet 7
1K
B
B
B
120PF
10K
100
25V
0.01
B
PROV
50V
0.47uF
B
10K
B
224-160
B
D
50V
0.001
B
1.5K
100
25V
0.01
PIF
+9V
121-1261A
B
22
50V
0.001
33
B
100
B
50V
0.001
470
470
100
B
B
750
50V
0.47uF
C
50V
1000PF
470uF
10V
50V
1000pF
B
B
PIF
+9V
A A
224-27A
3.58MHZ
50V
12PF
16V
0.022
D
50V
0.47uF
3.3K
SWF
+9V
P/L
120PF
C
680 680
D
FASTBLANK
SHT.3
220
R
SHT.3
G
SHT.3
B
SHT.3
220
220
4.7K
SW
+9V
25V
0.01
A
50V
120pF
6.8uH
10K
SWF
+9V
D
VERT-DRIVE
SHT.3
D
47K
50V
2.2uF
16V
0.022
JUMPER
D
100
C
HVCC
+9V
1K
SCL
SHT.3
SDA
SHT.3
IF
SHT.3
AGC
SHT.3
SHT.3
COMP-AUD
P/L
PROV
C
470uF
10V
C
0.82uH
10uH
SIF
+9V
C
1K
224-00139-01A
50V
47PF
50V
120PF
C
4.7K
C
20-4277-23A
12uH
1K
220
121-1310A
100
180
C
180
C
50V
PROV
16V
100MF
25V
0.01
120uH
SW
+9V
SIF
+9V
C
A
25V
0.01
560
A
C
SW
+9V
25V
0.01
A
C
25V
0.01
50V
1000PF
100
39K
C
100K
C
A
A
0.1
50V
121-1311A
10K
50V 10uF
470K
PROV
A
390
C
A
1K
D
P/L
10K
103-461A
10uH
4277-39A
103-461A
SHUTDOWN
SHT.5
D
50V
PROV
PROV
D
B-OUT
G-OUT
R-OUT
JUMP
SW
+9V
A
HORZ-DRIVE
SHT.5
100K
SW
+9V
SWF
+9V
25V
0.01
50V
1uF
ABL
SHT.5
SW
+9V
50V
180pF
NFB
SHT.5
SHT.5
PWRCONT
PROV
SHT.3
PWRCONT
P/L
WF
8
C
WF
7
WF
6
WF
14
AFC
SHT.3
WF
13
224-23A
50V
33PF
PROV
C
PROV
WF
12
P/L
D
PIF
+9V
1uF
50V
WF
9
C
16V
PROV
WF
10
C
10
470
FLYBACK
SHT.3
FLYBACK
SHT.5
EXT-VIDEO
SHT.3
50V
PROV
103-461A
SWF
+9V
SWF
+9V
SWF
+9V
680
470
COMP-VIDEO
SHT.3
121-1311A
SWF
+9V
503KHZ
224-178
680
2.2K
SWF
+9V
680
470
50V
1MF
PROV
(LCS,MTS)
PROV(MONO)
470
B
50V
0.1
121-1311A
1K
50V
0.001
PROV
D
PROV PROV
PROV
PROV
50V
0.1
PROV
50V
1uF
VERT-DRIVE
SHT.5
WF
11
47
SIF
+9V
0.1
50V
390
50V
0.1
121-1310A
470
C
4.7K
39K
+9V
SIF
680
4.7K
50V
62pF
10K
47
100
SYNC
SHT.3
PROV
SWF
+9V
220
PROV
121-1311A
121-1311A
470
PROV
470
SWF
+9V
16V
220uF
220
R1220M
C1223M
ICX2200
R2259M
C2241M
R1222M
R1224M
C1225M
R1231M
C1229
R1233M
U1201
C1224M
R1228
R1223
C1226M
Q1205
R1226M
C1228M
R1230M
R1225M
C1227M
R1227M
R2282
R1229M
R1232M
C1232
C1231M
C2208
C1234M
CR2200
C2202M
C1236M
C1235
R2200M
R2257M
C2240M
R2209M R2211M
R2213M
R2214M
R2215M
R2210M
C2207M
C2234M
L2202
R2250M
TP1203
TP1202
R2218M C2211
C2209M
L1204
R2219
R1219
C1211
C1202M
C1233
TP1200
L1206
L1202
R1211M
U1200
C1212M
C1213M
R1212M
L1203
R1213M
R1214M Q1204 R1216M
R1217M
R1218M C1214M
C1217
C1216M
L1208
C1219M
R2238
C1215M
C1218M
C1221M
R2220
R1234M
R2221M
C2212
Q2202
R2239M
C2216
R2224M
C2226
R2229M
R2226M
C2218
R2234M
D2202
L1201
D2203
C2221M
R2235M
2C5
D2204
R1235M
L1205
C2220M
C2219
C2225M
C1208
R2233
U1202
C1206M
C1209M
C1210M
C2217
C2206
C1230
TP1201
L1200
R2202
R2231
C2214M
D2206
R2285M
R2262M
Q2205
CR2205
R2284M
R2230M
R2283M
R2261M
C2227
R1209
R2260M
C2203
Q2204
R2204M
C2237M
C2210M
L2203 R2225M
R2223M
R2203M
C2204
R1210M
C2215
R2252
C1222
R2222M
C2205
Q1203
R2242M
R2206M
R2243M
R2207M
R2208M
C2250M
R1221
R2266
R2241M
J1200M
R2240M
C1207M
Q2203
Q2201
R2232M
C2230M
R2228M
C1220
R2227M
4277-20A
4277-09A
20-3907-12A
20-3907-25A
50-2024-05
20-4278B
20-4506
Vertical Horizontal Red Drive Green Drive Blue Drive
R
B G ABL
R
B
G
Composite Audio
MODULE
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/JACKS MONO W/JACKS MONO MONO LC STEREO LC STEREO MTS STEREO
COMPONENT LEVEL
REPAIR ONLY