Zenith H27G48S, Service Manual

Page: 40 / 66

Video Processor
1 2 3 4 5 6 7 8 9 10
G
D
C
B
E
F
A
6-3
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENTS DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. ALL COMPONENTS WITH “M” IN THE DESIGNATOR
ARE A SURFACE MOUNTED COMPONENT.
3828VD0171E FCS 48 SERIES SHEET 3
U- INT
V- INT
SDA 2
SC L2
Y- INT
H- FB P
VERT- SW
V- SYNC
R- INT
G- INT
B - INT
SVM- OUT
HORZ- SW
SELH- OUT
+ 9 V
VDO
+ 9 V
VDO
+ 9 V
VDO
+ 5 V
TNR
+ 9 V
VDO
+ 9 V
VDO
+ 9 V
VDO
+ 9 V
VDO
+ 5 V
TNR
+ 9 V
VDO
+ 9 V
VDO
AV
+ 5 V
AV
+ 5 V
AV
+ 9 V
+ 9 VVDO
+ 9 V
VDO
+ 9 V
VDO
+ 9 V
VDO
+ 5 V
TNR
+ 5 V
TNR
C 2 2 0 1
5 0 V 0 .4 7
C 2 2 0 2
5 0 V 0 .4 7
C 2 2 0 3
5 0 V 0 .4 7
C 2 2 0 5
5 0 V
1µ F
C 2 2 0 6
16 V
10 0 µ F
C 2 2 10
5 0 V 2 2 µ F
C 2 2 11
5 0 V
0 .1
C 2 2 2 3
5 0 V
1µ F
C
2
2
2
0
5
0
V
4
.7
µ
F
RM2 2 0 8
10 0
C
2
2
2
9
5
0
V
0
.1
C 2 2 3 4
5 0 V
1µ F
C 2 2 3 9
5 0 V
0 .4 7
C
2
2
4
0
5
0
V
0
.4
7
C 2 2 4 6
16 V
2 2 0 µ F
C
M
2
2
2
7
2
5
V
0
.0
1
R
M
2
2
5
1
10
0
C M2 2 5 4
16 V
0 .0 4 7
C RY2 2 0 0
2 .6 9 MHz
6 2 12 B A2 0 0 2 B
4
6
V
C
O
M
P
-
IN
V
S
A
W
1
V
S
A
W
0
V
-
A
G
C
V
-
O
S
C
EW
-
D
R
V
D
F-
P
A
R
A
M
P
-
P
A
R
A
G
N
D
-
V
SAB L- IN
V- DRV-
AB L- IN
VC C 9
VTIM
V- DRV+
H
C
-
P
A
R
A
V
S
-
IN
H
-
D
R
V
H
P
-
IN
4
7
4
8
4
9
5
0
5
1
H
C
O
M
P
-
IN
V
P
R
O
T
H
P
R
O
T
C
ER
A
G
N
D
-
H
L2
-
FIL
AFC - FIL
IREF- HV
R- OUT
G- OUT
B - OUT
VC C - OUT
VB IAS
VREG5
PRE- RGB
IK- IN
HS- IN
AB L- FIL SC P
SC L
SDA
3 2
3 1
3 0
F1
2 9
F0
C R- IN
2 8
C B - IN
Y- IN
V
C
C
5
IR
EF
-
Y
C
B
P
H
C
LP
-
C
V
M
-
M
O
D
V
M
-
O
U
T
2 7
2
2 6
2 5
2 4
2 3
2 2
2 1
2 0
Y
F-
O
FF
D
P
D
T-
O
FF
P
A
B
L-
FIL
R
1-
IN
G
1-
IN
B
1-
IN
Y
S
Y
M
1
R
2
-
IN
G
2
-
IN
B
2
-
IN
G
N
D
S
IG
Y
S
Y
M
2
G
N
D
O
U
T 6 4
6 3
6 2
6 1
6 0
5 9
5 8
5 7
5 6
5 5
5 4
5 3
5 2
4
5
4
4
4
3
4
2
6 5 4 3
19 18 17 16 15 14 13 12 11
4
1
4
0
3
9
3
8
3
7
3
6
3
5
3
4
10
7 8 9 1
3
3
IC M2200
C XA2 15 0 Q
0 IMC RSO0 0 7 A
Q2 2 0 0
E
B
C
KSA7 3 3 C - Y
PROV
RM2 2 12
4 7 0
RM2 2 14
5 6 0 K
RM2 2 15
2 .4 K
R
M
2
2
2
5
10
0
R
M
2
2
2
6
10
0
RM2 2 3 7
10 0
RM2 2 3 8
10 K
RM2 2 5 5
3 .3 M
R
M
2
2
5
6
0
.1
RM2 2 5 7
0 .1
RM2 2 5 8
1K
RM2 2 5 9
1K
R
M
2
2
6
3
1.
2
K
RM2 2 6 4
5 6 K
W2 2 0 1
9 7 1- 16
H- DRV
H- FB P
EW- DRV
A B L
H- PROT
VD-
VD+
1
2
3
4
5
8
7
6
9
10
11
12
C N2 D1
1
3 6 6 - 9 2 1L
Q2 2 0 3
E
B
C
B F9 5 9
0TR959009AA
Q2 2 0 4
E
B
C
B F9 5 9
0 TR9 5 9 0 0 9 AA
RM2 2 3 1
10 K
D2 2 0 2
1N4 14 8
0DSGF00019A
R
M
2
2
2
7
10
0
C M2 2 5 2
5 0 V
2 2 0 0 pF
RM2 2 4 2
2 K
C 2 2 0 9
16 V
2 2 0 µ F
D2 2 0 0
1N4 14 8
0 DD4 14 8 0 9 ED
D2 2 0 1
1N4 14 8
0 DD4 14 8 0 9 ED
Q2 2 0 5
E
B
C B F9 5 9
0 TR9 5 9 0 0 9 AA
H- FB P.
C LA MP
A B L
1
2
3
4
C N4 C 9
1
3 6 6 - 9 2 1C
C M2 2 5 3
10 0 pF
5 0 V
RM2 2 3 9
1.8 K
RM2 2 7 3
10 0 K
RM2 2 7 4
10 0 K
H
O
R
Z
-
S
W
RM2 2 7 5
1K
C 2 2 4 1
5 0 V
10 µ F
C 2 2 4 2
5 0 V
10 µ F
C M2 2 4 3
5 0 V
3 3 PF
C M2 2 4 4
5 0 V
3 3 PF
V
M
-
C
O
R
R
2
14
13
1
12
11
10
9
8 7
6
5
4
3
Q1
R1
D1
C P1
S1
Q1
VC C
GND Q2
Q2
S2
C P2
D2
R2
IC M2 2 0 1
SN7 4 LS7 4 D
2 2 1- 2 7 9 - 1
V
-
T
IM
RM2 2 7 1
1K
Q2 2 11
E
B
C
B F9 5 9
0 TR9 5 9 0 0 9 AA
RM2 2 7 2
4 7 0
C M2 2 5 0
5 0 V
2 2 0 0 pF
RM2 2 4 1
10 0
RM2 2 4 0
10 0
RM2 2 3 2
PROV
C
M
2
2
19
16
V
0
.1
C
M
2
2
18
16
V
0
.1
C
M
2
2
17
16
V
0
.1
C
M
2
2
15
16
V
0
.1
C
M
2
2
16
16
V
0
.1
C
M
2
2
14
16
V
0
.1
C
M
2
2
2
8
16
V
0
.1
C M2 2 3 0
16 V
0 .1
RM2 2 7 6
0 .1
C M2 2 3 1
5 0 V
PROV
C 2 2 0 4
16 V
10 0 µ F
L2 2 0 5
10 µ H
L2 2 0 6
10 µ H
RM2 2 0 4
PROV
RM2 2 0 9
10 0
RM2 2 3 5
PROV
C M2 2 3 2
5 0 V
10 0 0 pF
C M2 2 0 7
2 5 V
0 .0 1
C M2 2 0 8
2 5 V
0 .0 1
C M2 2 12
2 5 V
0 .0 1
C M2 2 2 5
2 5 V
0 .0 1
C M2 2 2 4
2 5 V
0 .0 1
C M2 2 3 3
2 5 V
0 .0 1
C M2 2 4 5
2 5 V
0 .0 1
RM2 2 0 5
0
RM2 2 0 7
0
RM2 2 2 9
1
RM2 2 2 3
10 0
RM2 2 4 9
10 0
RM2 2 5 0
10 0
RM2 2 5 3
10 0
RM2 2 2 4
1K
RM2 2 3 0
1K
RM2 2 3 3
1K
RM2 2 3 4
1K
RM2 2 3 6
1K
RM2 2 2 2
10 K
RM2 2 6 9
12 K
RM2 2 7 0
12 K
RM2 2 5 2
15 0
RM2 2 5 4
15 0
RM2 2 6 2
15 0
RM2 2 13
18 K
RM2 2 2 8
2 .7 K
RM2 2 6 1
3 .3 K
RM2 2 2 1
4 .7 K
R
M
2
2
16
6
.8
K
RM2 2 11
8 .2 K
RM2 2 6 5
8 .2 K RM2 2 6 6
8 .2 K
L2 2 0 3
10 0 µ H
RM2 2 0 3
PROV
RM2 2 0 6
PROV
RM2 2 4 6
PROV
R
M
2
2
6
0
4
.7
K
RM2 2 6 7
PROV
RM2 2 6 8
PROV
Q2 2 0 1
E
B
C
KSC 9 4 5 C - Y
0 TR9 4 5 0 0 9 AA
C 2 2 4 7
16 V
10 0 µ F
L2 2 0 4
4 7 µ H
RM2 2 7 7
1.8 K
C M2 2 4 9
2 5 V
0 .0 1
C 2 2 13
16 V
10 0 µ F
C M2 2 2 6
2 5 V
0 .0 1
VC C
1Rext
1C ext
1Q
2 Q
2 C LR
2 B
11
12
13
14
15
16
10
9
2 A GND
8
2 Rext
2 C ext
2 Q
1Q
1C LR
1B
1A
7
6
5
4
1
2
3
IC M2 2 0 2
7 4 LS12 3 D
2 2 1- 6 9 4 - 1
RM2 2 10
10 K
RM2 2 8 6
PROV
Q2 2 0 9
E
B
C
B F9 5 9
0 TR9 5 9 0 0 9 AA
RM2 2 4 7
1K
RM2 2 4 8
10 K
RM2 2 7 8
PROV
RM2 2 2 0
10 0
VC C
1Rext
1C ext
1Q
2 Q
2 C LR
2 B
11
12
13
14
15
16
10
9
2 A GND
8
2 Rext
2 C ext
2 Q
1Q
1C LR
1B
1A
7
6
5
4
1
2
3
IC M2 2 0 3
7 4 LS12 3 D
2 2 1- 6 9 4 - 1
TP2
V- PROT
IP2 2 0 1
IP2 2 0 2
IP2 2 0 0
TP2 2 0 3
TP2 2 0 5
TP2 2 0 4
D
A
A
C
C
A
B
A
B
C
A
B
A
D
D
A A
A
D
C
B B
C
C
C
C
C
B
TO LARGE SIGNAL
MODULE
C
D
D
D
D
C
C C
D
D
D
D
A
A
A
A
A
A
A
A
D
A
C
12
WF
WF12
1V
SHT. 6-5
SHT. 6-6
SHT. 6-6
SHT. 6-6
SHT. 6-10
SHT. 6-10
SHT. 6-2
SHT. 6-2
SHT. 6-5
SHT. 6-5
SHT. 6-5
SHT. 6-10
SHT. 6-10