Service manual

Tuner
1 2 3 4 5 6 7 8 9 10
G
D
C
B
E
F
A
6-8
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 8
SDA 2
SC L2
SIGNA L- METER
SIF
C V- RF
AFT
S- DETEC T
Y- C V- SD
AV
+ 9 V
+ 3 3
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
+ 5 V
TNR
3
10
11
5 V
9
8
7
6
5
4
5 V
NC
1
SC L
SDA
AS
NC
AGC
2
NC
IF
3 3 V
WT12 0 0
6 7 0 0 NFNS11C
LG- TA EM- H 0 0 1P
1
C M12 10
5 0 V
10 0 0 p F
C M12 12
5 0 V
10 0 0 p F
C M12 13
5 0 V
10 0 0 p F
L12 0 3
0 .8 2 µ H
L12 0 4
10 0 µ H
Q12 0 0
B F9 5 9
E
B
C
0 TR9 5 9 0 0 9 A A
RM12 0 5
10 0
RM12 0 6
3 9 0
RM12 0 7
1.5 K
RM12 0 8
10 0
RM12 0 9
3 3
RM12 10
2 2
RM12 11
10 0
RM12 12
10 0
U12 0 0
M19 6 2 M
6 2 0 0 C 0 0 0 0 2 8
C M12 0 8
5 0 V
10 0 0 p F
C M12 0 5
5 0 V
PROV
RM12 0 4
4 7 0
C M12 0 4
1
PROV
RM12 0 3
4 7 0
RM12 0 1
PROV
RM12 0 2
8 2 K
RM12 13
10 K
R12 2 6
10 K
C M12 3 8
5 0 V
0 .1
Q12 0 2
E
B
C
KSA7 3 3 C - Y
0 TR7 3 3 0 0 9 A A
RM12 2 9
1K
C M12 2 0
5 0 V
0 .0 1
C M12 2 9
5 0 V 0 .0 1
L12 0 8
PROV
C M12 3 0
5 0 V
PROV
RM12 3 5
PROV
C M12 2 3 5 0 V
0 .0 1
Q12 0 1
B F9 5 9
E
B
C
0 TR9 5 9 0 0 9 A A
RM12 16
1K
U12 0 1
4 .5 MHz
TPS4 .5 MB 9
6 2 0 0 C 0 0 0 0 2 7
RM12 2 1
4 7 0
L12 0 6
10 µ H
C M12 15
5 0 V
0 .0 1
L12 0 5
10 µ H
RM12 2 8
10 0
C 12 17
5 0 V
0 .4 7
RM12 2 3
2 2 0
U12 0 2
4 .5MHz
SFSH 4 . 5 MDB
6 2 0 0 C 0 0 0 0 2 6
RM12 3 2
10 0 K
RM12 3 3
10 0 K
RM12 0 0
10 0 K
C M12 0 6
5 0 V
10 0 0 p F
C 12 2 8
5 0 V
0 .2 2
C M12 2 7
5 0 V
0 .0 1
1 2 3 4 5 6 7 8 9
15 2 0 19 13 14
10 11
16 12 17
IF
AGC 1
EQ
AMP
VIF
IN1
18
LEVEL REF.
SIGNA L
RF
AGC
AUDIO
AFT
IF
AGC 2
VIF
IN2
GND F/ B
SIF
OUT
SIF
IN
OUT VC O
F/ B
APC VIDEO
DET
LOGIC
VC C
AUDIO VIDEO
OUT
VIDEO
IN
VC C
IC M12 0 0 M6 1113 FP NEW
RM12 3 1
PROV
L12 0 9
10 µ H
Q12 0 3
B F9 5 9
E
B
C
0 TR9 5 9 0 0 9 A A
C M12 3 2
5 0 V
PROV
C RY12 0 1
3 .5 7 9 MHz
15 6 - A0 1B
RM12 3 8
12 0
RM12 3 0
2 2
C 12 3 5
16 V
2 2 0 µ F
C M12 3 6
5 0 V
2 2 0 p F
C M12 3 7
5 0 V
2 2 0 p F
RM12 19
10 0
C M12 3 9 5 0 V 0 .0 1
C M12 0 2
5 0 V
10 0 0 p F
C 12 0 3
16 V
0 .0 1
C M12 4 0
5 0 V
0 .1
C M12 11
5 0 V
0 .0 1
L12 0 1
15 µ H
L12 10
15 µ H
C 12 0 9
16 V
4 7 µ F
C 12 0 7
16 V
2 2 0 µ F
C M12 2 5
16 V
0 .1
C M12 2 4
16 V
0 .1
C M12 19
16 V
0 .1
C M12 3 4
16 V
0 .1
C 12 2 2
16 V
4 7 µ F
C 12 14
16 V
4 7 µ F
C 12 2 1
16 V
4 7 µ F
C 12 5 0
5 0 V
1µ F
C M12 5 1
5 0 V
10 0 0 p F
C M12 5 2
5 0 V
2 2 0 0 pF
C M12 5 4
5 0 V
2 2 0 0 pF
Q12 10
KSA7 3 3 C - Y
E
B
C
0 TR7 3 3 0 0 9 A A
Q12 11
E
B
C
KSC 9 4 5 C - Y
0 TR9 4 5 0 0 9 A A
RM12 5 0
3 3 0
RM12 5 1
4 7 0 K
RM12 5 2
12 K
RM12 5 3
3 .9 K
RM12 5 4
10 K
RM12 5 5
PROV
RM12 5 6
6 8 K
RM12 5 7
10 0
C 12 0 1
5 0 V
4 .7 µ F
C 12 5 3
5 0 V
4 .7 µ F
C M12 3 3
5 0 V
2 2 0 p F
L12 0 0
10 µ H
L12 0 7
15 µ H
C M12 18
5 0 V
10 0 0 p F
RM12 18
2 2 0
RM12 3 9
10 0
RM12 4 0
12 0
RM12 5 8
PROV
RM12 5 9
PROV
RM12 3 4
15 K
RM12 4 1
4 7 K
RM12 17
0
RM12 2 5
0
RM12 2 7
0
RM12 2 4
2 .2 K
RM12 2 0
3 3 0
RM12 3 6
2 2 0
RM12 3 7
2 .2 K
C M12 3 1
5 0 V
PROV
RM12 2 2
PROV
C M12 16
5 0 V
PROV
TP3
21
WF
WF
22
WF
23
WF21
5.1V
WF22
75MV
WF23
1V
SHT. 6-10
SHT. 6-10
SHT. 6-10
SHT. 6-10
SHT. 6-10
SHT. 6-10
SHT. 6-9
SHT. 6-2