Zenith H19F34DT Series, Service Manual

Page: 49 / 62

WF11
WF10
WF9
WF12
WF13
WF15
H-SYNC
V-SYNC
F
S
C
F
S
C
SIF SIF
((
((
( (
( (
G G
R R
B B
Y-MICRO
VERTICAL-ABL
ABL
AFC
VERT-DRIVE
VNFB
FLYBACK
HORZ-DRIVE
SYNC
H-SYNC
V-SYNC
B
G
R
FASTBLANK
SDA
SCL
FSC
IF
SIF
AGC
SIGNAL-METER
EXT-AUD
COMP-AUD
TV
Y-MAIN
C-MAIN
GND
D
GND
A
GND
A
GND
B
GND
B
GND
B
GND
B
GND
B
GND
C
GND
C
GND
C
GND
C
GND
C
GND
C
GND
C
GND
C
GND
D
GND
D
GND
D
GND
B
GND
B
GND
E
GND
E
GND
E
GND
E
GND
A
GND
A
GND
E
GND
E
GND
A
GND
A
GND
A
+5V
SW
GND
A
GND
A
GND
C
GND
B
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
A
GND
B
GND
B
GND
C
+5V
SW
SW
+8V
SW
+8V
SW
+8V
GND
C
SW
+8V
+8VID
+8
VID
VID
+8
VID
+8
VID
+8
VID
+8
+5V
SW
SW1
+8V
SW1
+8V
SW1
+8V
SW1
+8V SW1
+8V
SW
+8V
+8VABL
+8V
ABL
ABL
+8V
ABL
+8V
SW
+8V
GND
A
+5V
SW
GND
A
GND
A
GND
A
GND
A
GND
B
GND
B
GND
B
GND
B
GND
B
GND
B
GND
B
GND
B
GND
E
GND
E
GND
E
GND
E
+5V
SW
GND
B
GND
B
SW
+8V
GND
E
GND
E
+5V
SW
+5V
TNR
GND
E
GND
E
+8.7
VSB
SW
+8V
+5V
SW
ABL
+8V
SW
+8V
+8VSW1
+8V
SW1
L2205
10µH
L1206
10µH
L1205
10µH
L2202
10µH
L1207
10µH
L2201
10µH
L1201
0.82µH
Q2601
E
B
C
KSC945C-Y
0TR945009AA
CM1220
50V
1000pF
CM1224
50V
120pF
CM1221
16V
0.1
CM1223
25V
0.01
CM2205
50V
47pF
Q2603
E
B
C
KSC945C-Y
0TR945009AA
Q2604
E
B
C
KSC945C-Y
0TR945009AA
D2601
1N4148
0DD414809ED
D2602
1N4148
0DD414809ED
D2203
1N4148
0DD414809ED
Q1201
BF959
E
B
C
0TR959009AA
D2205
1N4148
0DD414809ED
Q1203
BF959
E
B
C
0TR959009AA
Q1202
E
B
C
KSC945C-Y
0TR945009AA
C2201
50V
1µF
C2608
16V
47µF
C2609
16V
100µF
C2610
16V
47µF
C2224
50V
0.47
C2227
16V
47µF
C1222
16V
47µF
C1207
50V
0.47
C2208
16V
47µF
C2604
16V
100µF
C1205
50V
0.22
C2228
50V 1µF
C2230
16V
47µF
C1218
16V
100µF
C1212
16V
47µF
C1215
50V
1µF
C2220
16V
47µF
CM1210
50V
PROV
CM1226
50V
PROV
Q2202
E
B
C
KSA733C-Y
0TR733009AA
Q2203
E
B
C
KSA733C-Y
0TR733009AA
Q2602
E
B
C
KSA733C-Y
0TR733009AA
Q2201
E
B
C
KSA733C-Y
0TR733009AA
Q2204
E
B
C
KSA733C-Y
0TR733009AA
R2242
100
1/2W
R2210
220
R2214
220
R2218
220
R2203
10K
R1226
1K
R2221
1M
R2222
100
R2231
100
R2232
100
R1213
39K
R1215
220
L1208
10µH
R2226
JUMPER
C2218
16V
22µF
CRY2201
3.579MHz
156-A01B
L1202
100µH
L2602
JUMPER
U1201
M1962M
6200C000028
U1202
4.5MHz
6200C000027
TPS4.5MB9
U1204
4.5MHz
6200C000026
SFSH4.5MDB
U1203
4.5MHz
6200C000026
SFSH4.5MDB
VIF Vcc
32
SIF Vcc
31
RAMP OUT
V RAMP F/B
30
AFC FILTER
29 28
FM
D
IR
E
C
T
O
U
T
R
IN
S
IF
G
N
D
V
IF
V
C
O
F
B
V RAMP CAP
V
IF
G
N
D
DEF GND
LOGIC GND
45
FBP IN
H OUT
AFT OUT
DEF Vcc
27 26
S
C
L
44
V
IF
A
P
C
F
IL
T
E
R
40
V
IF
A
G
C
F
IL
2
F
A
S
T
B
L
K
2
5
2
4
2
3
2
2
2
1
2
0
P
-O
N
C
T
R
L
S
D
A
F
S
C
O
U
T
1
5
0
Y
S
W
O
U
T
C
L
O
C
K
C
T
R
L
1
9
43
1
8
1
7
1
34
2
35
3
V
IF
I
N
(2
)
4
39
5
V
IF
A
G
C
F
IL
1
V
IF
I
N
(1
)
6
7
8
9
10
11
12
13
M
C
U
5
.7
V
R
E
G
O
U
T
M
C
U
R
E
S
E
T
Cb IN
Cr IN
G
IN
14
15
16
5
1
4
9
TV/Y IN
VREG Vcc
X-TAL 3.58
Hi Vcc
VIDEO/CHROMA Vcc
DRIVE Vcc
EXT/C IN
B
IN
33
47
48
36
37
38
A
U
D
IO
B
Y
P
A
S
S
E
X
T
A
U
D
IO
I
N
A
U
D
IO
O
U
T
B OUT
G OUT
R OUT
IN
TE
R
C
A
R
R
IE
R
O
U
T
CHROMA APC FILTER
VIDEO/CHROMA GND
ACL/ABCL
DRIVE GND
42
5
2
5
3
5
4
5
5
LIMITER IN
56 57 58 59 60 61 62 63 64
H
V
C
O
F
E
E
D
B
A
C
K
NC
8.7V REG OUT
IN
T
M
O
N
V
ID
E
O
O
U
T
V
P
U
LS
E
O
U
T
46
R
F
A
G
C
O
U
T
41
AUDIO ATT FILTER
5.
7V
R
E
G
O
U
T
IN
V
F
B
P
O
U
T
ICM2200
M61250FP
0ICTMMI044A
C2221
100V
0.01
L2203
10µH
C2233
16V
47µF
C2231
50V
1µF
C2204
50V
1µF
R2207
1K
CM2202
50V
PROV
C1216
16V
47µF
RM2223
4.7K
RM2224
4.7K
RM2225
4.7K
RM2227
680
RM2228
680
RM2229
680
RM2607
4.7K
RM2609
4.7K
RM2611
4.7K
RM2612
4.7K
RM2614
470
RM2615
330
RM2618
4.7K
RM2619
470
RM1212
12K
RM1216
100
RM1218
470
RM1221
10K
RM1222
10K
RM1223
470
RM1230
470
RM2230
10K
RM2616
910
RM2234
100
RM2235
18K
RM2608
10K
RM2610
10K
RM2613
10K
RM2617
10K
R2620
10K
CM2612
50V
470pF
RM2621
PROV
R1220
3.3K
L2204
10µH
L2206
220µH
CM2240
25V
0.01
C2241
16V
47µF
L2207
10µH
CM2236
16V
0.1
C2237
16V
100µF
CM2238
50V
1000pF
D2201
1N4148
0DD414809ED
JM1200
PROV
JM1202
P/L
L1204
18µH
R1225
PROV
RM1227
PROV
RM2244
P/L
W1201
PROV
W2201
PROV
RM1217
22
RM2238
750K
RM2250
82K
RM2622
3.3K
RM2212
2.7K
RM2216
2.7K
RM2220
2.7K
CM1201
50V
1000pF
CM1202
50V
1000pF
CM1203
25V
0.01
CM1204
50V
1000pF
CM1206
25V
0.01
CM1208
50V
22pF
CM1209
25V
0.01
CM1211
25V
0.01
CM1213
16V
0.1
CM1214
50V
3900pF
CM1217
16V
0.1 CM1225
50V
47pF
CM2203
25V
0.01
CM2207
25V
0.01
CM2209
25V
0.01
CM2210
25V
0.01
CM2211
16V 0.1 CM2212
16V 0.1 CM2213
16V 0.1
CM2214
50V 47pF
CM2216
16V
0.1
CM2217
25V
0.01
CM2222
50V
120pF
CM2223
50V
0.015
CM2225
16V
0.1
CM2226
25V
0.01
CM2232
25V
0.01
CM2234
16V 0.1
CM2235
16V 0.1
RM1201
100
RM1202
390
RM1203
1.5K
RM1204
100
RM1205
33
RM1206
22
RM1207
100
RM1208
100
RM1209
10K
RM1210
220
RM1211
1K
RM2201
39K
RM2202
6.8K
RM2204
15K
RM2206
4.7K
RM2208
1K
RM2209
2.2K
RM2211
470
RM2215
470
RM2219
470
RM2213
2.2K
RM2217
2.2K
RM2236
47
RM2237
10K
RM2239
1M
RM2241
270
RM2240
1K
RM2249
8.2K
RM2251
3.9K
R2243
1/2W
P/L
RM1219
P/L
RM1224
P/L
5
4
3
2
1
CN2C5B
P/L
Q2206
E
B
C
KSA733C-Y
0TR733009AA
RM2245
10K
C2219
50V
P/L
CM2602
25V
0.01
C2601
16V
47µF
L2601
10µH
RM2233
JUMPER
C2215
50V
1µF
TP2
RM2244 R2243
47
100
19"/20"
STEREO ONLY
25"
JUMPER
27"/32"
516K
3.9K
3.3K
PROVISION
WF14
1 2 3 4 5 6 7 8 9 10
G
D
C
B
E
F
A
Video Processor Circuit
IF
Vertical
Horizontal
H-SYNC H-SYNC
V-SYNC V-SYNC
V-Sync
H-Sync
Subcarrier Signal
FSC FSC
Luma (Micro)
ABL
Chroma (C-IN)
Luma (Y-IN)
Composite Video IF
G G
R R
B B
Red
Blue
Green
SIF SIF
Sound IF
Composite Audio
(( (( ( ( ( (
This schematic refers to
CL Chassis models
H19F34DT
H20F34DT
H25F34DT
H25F39DT
H27F34DT
H27F39DT
H25F36DT
H27F36DT
H32F36DT
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENT DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. ALL SYMBOLS WITH “M” ON THE DESIGNATOR
INDICATE SURFACE MOUNTED COMPONENT.
6-4
WF10
5.26 V
10.0 µS
WF9
V
10.0 µ S
WF12
1.55 V
10.0 µS
WF13
40.8 V
10.0 µS
WF11
5.18 V
10.0 µS
WF14
1.044 V
10.0 µS
WF15
580mV
10.0 µS
SR25-3828VD0171B