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A
B
8
7
6
5
4
3
2
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
1
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A
B
G-13
C
D
COMB/FILTER SCHEMATIC DIAGRAM
(MAIN PCB)
(DBTV2702)
AV/S SW IC
IC1502
NJM2283M
C1505
R1512
4.5
50V
4.7
KA
1K
N
7.5
3.8
R1523
R1521
0
N
1K
820
C1520
W807
3.8
56P SL
L
3.8
7.5
L
N
4.5
D1501
0
S_VIDEO SW
1SS133
4.9
Q1508
KRC102MAT
0
D1502
1SS133
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
F
4.5
L
0
C1521
C1527
4.5
R1520
10P CH
1K 1/4W
50V
10
YK
4.9
7.5
4.5
0
4.5
R1524
1K 1/4W
CAUTION: DIGITAL TRANSISTOR
E
F
G
H
FROM/TO CHROMA
STEREO+5V
C_IN
Y_IN
FROM/TO AV
VIDEO_IN
V1_SW
VI_C_IN
VIDEO_OUT
VI_Y_IN
S_VIDEO
ON_TIMER
FROM MICON/TUNER
AV1
ON_TIMER
FROM/TO POWER
GND
PCB010
TMB544
TUNER VIDEO SIGNAL
G
H
8
7
6
5
4
3
2
1
G-14
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