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A
B
8
7
6
5
4
3
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
A
B
G-21
C
COMB FILTER SCHEMATIC DIAGRAM
C758
C765
27P CH
50V
0.47
KA
BUFFER
Q753
2SA1037AK
0
2.3
2.9
2.3
1.2
0
1
2
3
4
5
6
A.VSS
VRB
VRT
BIAS1
TEST
1H LINE
BPF
MEMORY
CLAMP ADC
BPF
BPF
DYNAMIC
COMB FILTER
COLOR
KILLER
DAC
DAC
1/2
A.VDD
BIAS2
BIAS3
V.FIL
16
15
14
13
12
11
5.1
2.3
1.5
3.9
3.5
2.2
L753
15uH
C766
22P CH
BUFFER
4.8
Q751B
2SC2412K
4.8
2.0
1.4
R757B
680
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D
E
(AV PCB)
49
W858
2.2
R762
1.6
100
0
L755
100uH 0305
0
5.1
7
8
W831
D.VCC
W863
C785
PLL
SYSTEM CLOCK
6.3V
220
YK
D.VSS
10
9
2.3
0
C786
0.01 B
C779B
0.1 B
C774
100P CH
5.2
C793
2.6
0.1 B
50
1.9
C790
W829
W832
BUFFER
0.1 B
Q754
2SC2412K
51
BUFFER
5.2
Q752B
2SA1037AK
1.6
R760
C783
W830
1K1/4W
50V
2.2
KA
D
E
F
G
FROM/TO AV SW
MONITOR_V
FROM/TO POWER
P.CON+9V
P.CON+A5V
GND
FROM/TO
VIF/SIF/CHROMA
FSC
COMB_C_OUT
COMB_Y_OUT
RECORD COLOR SIGNAL
RECORD LUMINANCE SIGNAL
TUNER VIDEO SIGNAL
PLAYBACK VIDEO SIGNAL
F
G
H
8
7
6
5
4
3
2
PCB250
TMA503
1
H
G-22
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