TV-20F242
TV-20F242
No.51768
No.51768
%
2-31
2-32
[DIGITAL COMB FILTER CIRCUIT DIAGRAM]
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
IC901
TC90A45F
DIGITAL COMB FILTER
1
10
11
12
13
14
15
16
2
3
4
5
6
7
8
9
THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:
IS NON POLAR ONE.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
THE RESISTOR MARKED F IS FUSE RESISTOR.
NOTE:
L904_1
82uH
Q903
2SC2412K
BUFFER
Q901
2SC2412K
BUFFER
Q902
2SC2412K
BUFFER
C916
47
16V
KA
C925
0.1 B
C906
0.01 B
C921
10P CH
C926
15P
CH
C917
0.01 B
C912
0.01
B
C911
0.01
B
C909
180P
CH
C910
0.01
B
C908
100P
CH
C913
0.01 B
C905
0.01
B
C902
0.01
B
C901
0.01
B
C919
56P
CH
C923
220P CH
R915
470
R909
100
R907
33K
R913
2.2K
R908
820
R906
1K
R912
6.8K
R914
820
R911
3.3K
R910
1K
R902
1K
R904
470
R905
120
C903
0.47
50V
KA
C907
330
6.3V
YK
W931
W920
L901
820uH 0607
L903
15uH
0305
L902
150uH
CY901
IMSA-9130S-06L
1
2
3
4
5
6
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
TUNER VIDEO SIGNAL
LUMINANCE SIGNAL
COLOR SIGNAL
DIGITAL COMB FILTER SCHEMATIC DIAGRAM
(COMB FILTER PCB)
(CP604)
FSC
GND
P.CON+5V
Y IN
C IN
MONITOR V.OUT
1.7
5.0
1.1
0
2.5
2.2
3.6
4.2
1.4
3.8
5.4
5.5
0
2.6
2.6
3.0
2.4
0
0
KILLER
TEST
BIAS1
SS
OUT
OUT
DD
DV
C
Y
AV
DV
DD
SS
AV
CKIN
VFIL
BIAS3
BIAS2
ADIN
VRT
VRB
5.4
2.5
1.9
2.4
2.1
4.4
FROM/TO CHROMA/IF
VEX911
PCB300