Samsung CS21A9W2QS/MUR Service Manual page 9

Alignment and Adjustments
4-6 MICOM
4-6-1 UOC IC 1-CHIP Part Pin Port Function
1
.
MICOM
.
PART
.
11
12
.
.
.
1-CHIP
.
UOC-IC
. PART
.
.
.
32
4-6
Pin No
64
12 Analog GND of TV
.
13 Secam PLL decoupling
.
14 2nd supply voltage(8V)
.
15 Supply voltage of digital circuit
16 Phase-2 filter
54
17 Phase-1 filter
53
18 GND 3 for TV
.
19 Bandgap decoupling
20 Automatic Volume Leveling(90' ver)
.
21 Vertical drive B out
.
22 Vertical drive A out
.
23 IF input 1
.
24 IF input 2
25 Reference current input
.
26 Vertical sawtooth cap
.
27 Tuner AGC out
.
28 Audio deemphasis
33
29 Decoupling sound demodulator
30 GND 2 for TV
31 Narrow band PLL filter
32 Sound IF input/ AM output
FUNCTION
B out
G out
R out
Black current in/V-guard in
Beam current limiter in
B-in/Pb-in
G-in/Y-in
R-in/Pr-in
F/B in
Audio output(volume controlled)
GND
EXT CVBS in
GND for TV
Internal CVBS input
Main supply voltage TV(8V)
IF Video out
IF-PLL loop filter
EHT/over voltage protection in
External audio out/AM output
Flyback in/sandcastle out
Horizontal out
FUNCTION Pin No
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
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