Video Processor - Zenith A19A02D Service Manual

1 2 3
VERT-SIZE
SHT.24
COMP-AUD
HORZ-SIZE
AGC
SHT.24
G
AUXSWITCH1
SHT.24 +9V
PIF
PWR-CTL
SHT.24 R1224M
100
C1226M
L1206
EXT-L R1223M
0.01
0.82uH
SHT.24
100
25V
R1228
4277-09A
EXT-R 1.5K
SHT.24 B
6.8
C
IF C1227M
IF R1225M
B
SHT.24 Q1205
121-1261A
1000pF 100
1.5
E
R1229M
50V
R1227M
100 0.8
390
+9V
R1226M
F B SW
B 22
R
SHT.24
C1228M
G FASTBLANK R1230M
1000pF
SHT.24 33
50V
R
B 20-3907-25A
SHT.24 G
B B
FASTBLANK
B
SHT.24
AGC
SHT.24
COMP-AUD
SHT.24
VM-OUT-L
E
SHT.24
VM-OUT-R
SHT.24
WF7
2.6V
20 uS
WF6
3.40V
20 uS
+9V
D SWF
R2260M
6
820
WF
2.3
Q2203
121-1311A
E
1.6
R2283M
R
B
P/L
2C5 +9V
C
SWF
0
1 B-OUT 7
R2261M
WF
820
2 G-OUT
2.3
TO
3 R-OUT E
VIDEO
1.6
C R2284M
OUTPUT 4 G
P/L B
+9V
MODULE
C
5 SWF
A
0.0 Q2204
121-1311A
C2237M +9V
58-526-05
1000pF SWF
50V
R2262M
A
820
2.3
E
WF8
WF
1.6
R2285M
2.8V 8
B
P/L
B
20 uS
C Q2205
121-1311A
0.0
B
CRT-PROTECTOR
SHT.24
SCL
SHT.24
VRAMP
SDA
SHT.24
Y/C-SENSE SCL
SHT.24
VRAMP
SHT.24 SDA
COMP-VIDEO
SHT.24 COMP-VIDEO
SYNC
SHT.24
AFC
SHT.24
VERT-DRIVE
A
SHT.24
FLYBACK
SHT.24
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER "X" IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
GA3 VIDEO PROCESSOR
4 5 6
R1221M
10K
R1220
C1223M
0.01
Block Diagram #13
100k
25V
U1201
224-160
B B
1
C1224M 0
1 4
L1205
20-4278B
1000pF
2
50V 3.7
2
5
3
3
4.0
B B
+9V
4
R1222M 3.2
PIF
10K
TP1200
C1225M
L1208 5
4.6
0.01
25V
120uH C1229
R1231M
6
B 0.47uF 0.0
PROV
50V
B B B 7
2.0
+9V
SWF
+9V
R1233M
PIF
8
10K 2.0
9
R1210M C1231M 8.7
C1236M
3.3K C1234M C1233
0.022
6800pF 470uF
1000PF
C1232
16V 4.4 10
50V 10V R1232M
50V
C1235
0.47uF
750
0.47uF
50V
6.1 11
B B B 50V
CR2200
12
4.7
C2202M
12PF 3.58MHZ 13
0.0
50V
224-27A
14
A A 0.0
C2203
15
4.7
0.1
C2204
50V 16
4.6
0.1
C2205
50V 17
4.6
0.1
C2207M 50V 18
3.6
0.01
25V 19
R2213M 2.2
C2245
220
4.7uF
20
2.2
50V
21
1.6
+9V
R2238
22
SW
560
R2214M
220
23
R2212M 8.7
100
24
5.0
C2211
R2218M
25
6.0
+9V 27K
SW
2.2uF
26
R2202 D 50V 4.8
10
R2215M
27
4.8
C2209M
C2208
220
100uF 0.022
16V
16V
28
C2240M 5.0
PROV
D D
R2219 C2241M
PROV
D
100
R2220
D
100
WF13
0.76V
20 uS
ABL Horizontal Vertical R Red Drive
COMPONENT LEVEL MODULE 009-01996
REPAIR ONLY
FEATURES MTS STEREO
7 8 9
+9V
SIF
+9V
ICX2200
SW
TP1201
221-1165
C1213M L1201
R1212M
120PF 10uH
4.7K
50V
C1212M 4277-39A 20-3907-12A
C1206M
Sheet 28 8.8
33PF
47PF
50V
56 50V
0
N.C.
C
N.C. Q1203
C 3.7
B
121-1310A C
TP1202
55 2.8
SND-OUT
E
3.0
EXT-AUD
R1209M
54
5.7
RF-AGC 10K R1213M
+9V
1K
DE-EMPH
F
C1211
53
2.8 C C
SIF
AUDIN
4.7MF
52 0 50V C1219M
AGCFIL 14
0.01
LIMITER
25V
WF
R1211M
51 U1200
PIFGND 0
1K A
224-139-01A C2225M
SIFGND
C
C C
50
7.8 220pF
PIF-IN
50V
PIFTANK L1200 C2293M
C1214M
R2243M
3
49 4
PIF-IN PROV
39K PROV
+9V
2
PIFTANK 50V
7.8
SIF
6 1
48
20-4506 C
PIFVCC
SIF/VCC
8.8
C1216M C2212
R2266
47
3.7
LOOPFIL 0.01
TV/DET
25V 180
0.1uF
+9V
46 C 50V
8.8
APCFIL F
VCC
C2210M R2242M
120pF
45
1.8
VCXO 50V
CIN
TP1203 L2203 C2291M
44
3.3
GND PROV PROV
AFT
R2240M
43
4.5
FBLNK
YIN
R2223M
WF
C2215
42 47 121-1311A
4.6 R2221M
ROSD
13
DC
100K
1MF
41
3.2 50V A
GOSD
VSW-OUT
R2222M
+9V
40 5.1 10K
BOSD F
BLK/DET
C2216
+9V
C2226
39 SW
1.6
D-VCC 10uF 50V
VIN
121-1311A
1uF R2224M
38 R2292M
3.3
ROUT 50V
10K
470K
ACL
37 C2227
3.2
GOUT
TV-IN
50V 1uF
36
2.8
BOUT R2226M
ABL C2217 1K
+9V
0.1uF
35
0
VPULSE SW
50V
C2220M
DGND
CR2205 A
R2234M
34
R2229M 503KHZ 0.01
NFB
25V 10K
32FH C2218 D2203
5.7
390
103-461A
0.1uF
C2219
33
7.2 224-178 R2230M
VRAMP D
50V
HAFC
2.2K
1uF
WF
32 50V R2231 A
1.2
VSEPFIL
H-OUT
470 +9V
31
0.33 R2259M
HVCC SW
1K
SYNC
D2206
30 D
1.1
SCL
R2257M 103-461A
FLYBACK
3.9K
C2221M
29
SDA R2235M
33pF
C2257M
SHUTDOWN 15K
50V
470PF
D D
1.7 50V
C2299M
0.01uF
25V
Composite Audio
G Green Drive B Blue Drive
009-01997 009-01997-01 009-01998
MTS STEREO MTS STEREO MTS STEREO
ALL SYMBOLS WITH "M" ON END OF DESIGNATOR
6-25
INDICATE SURFACE MOUNTED COMPONENT
10 11
CHROMA-COMB
+9V
SIF
L1202
EXT-L
10UH
C1217 L1203
EXT-R
C1215M
100uF 12UH
+9V
0.01 16V
20-4277-23A
SIF
25V
C
8.8
U1202
C
AUXSWITCH1
R1214M Q1204
R1216M B
121-1310A
220 100 Ohm
0 E
VM-OUT-L
224-23A 3.0
+9V C2294M
2.3
SW 220pF
R1217M
L1204 C VM-OUT-R
50V
150
JUMPER
WF14
C1220 C1218M R1218M
220uF 0.15V 220
0.01
16V
25V 20 uS
A A C
R2282M CM
0 Ohm .1 W C2295M
+9V
F
PROV
L2205
PROV
R1235M
100K
R1219M
820 HORZ-SIZE
C1222
C1221M R1234M
0.1
1000PF
39K
50V
50V
C2260 C
C C
CHROMA-COMB
150
10uF
DL2200
R2241M 50V
223-45
150 3
E
2 5
B +9
100 +9V
1 4
R2270M
C
Q2202
10K W0115
R2271M
C
C2261
27K JUMPER
47uF
25V
VERT-SIZE
+15
VSW
Q2210
R2273
+15
C
P/L ABL
VSW R2272
ABL
B
RX2278 C2272
10K
R2277 10K 0.022
E
1.2K 1/2W 50V
VERTICAL-ABL
1/2W
R2274
D2202 C2270 100 VERTICAL-ABL
103-461A 0.1
+15
50V
VSW
R2275M
10K
E D2215 AFC
103-0471A PWR-CTL
Q2209
B C2271
9 22uF R2279M EXT-VIDEO
C
121-1311A
50V 1K
HORZ-DRIVE
HORZ-DRIVE
Y/C-SENSE
SYNC
FLYBACK
11
WF
R2233
FLYBACK
SHUTDOWN
4.7K
SHUTDOWN
EXT-VIDEO
WF11
22 V CRT-PROTECTOR
20 uS
+9V
F
WF9
C
0.9V
Q2206 B
R2228M
121-01310A 20 uS
390
E
R2227M
0 Ohm .1W
R2225M
1K
VERT-DRIVE
009-02041
MTS STEREO
12
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
CM
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
SHT8
SHT.26
SHT.26
SHT.26
SHT.26
SHT.26
GA SHEET 25