Samsung CS2551SX Service Manual page 35

4-9-2 Pin Assignment Specification (Continued)
PIN NO FUNCTION
ASSIGN
27 Relay
I/O
28
N.C.
29
GND
30
Vdd VDD 3.3V
31
N.C.
32 N.C.
33
Reset Reset
34 X-In
X-TAL In
35 X-Out X-TAL Out
36
GND
37
VDD 2.5V
Vdd
38
R OSD-R
39
G OSD-G
40
B OSD-B
41 COR CORE
42
VDD 2.5V
Vdd
43 GND
44
Vdd
VDD 3.3V
45
I/O PX.Y
I/O PX.Y
46
47
N.C.
48 N.C.
49
I/O
S-Mute
50
I/O Power
51
N.C.
52
I/O
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IN/OUT
ACTIVE H/L
Out
In
In
Out
Out
Out
Out
Out
In
Out
Out
Out
DESCRIPTION
Low
Activate Degausssing Coil
Not Used (Programmed Gound Level)
Analog Ground
Not Used (Programmed Gound Level)
Not Used (Programmed Gound Level)
Micom Hardware Reset
Crystal Oscillation Input
Low
Crystal Oscillation Output
6MHz
Analog Ground
6MHz
Analog B+
OSD/TTX Output (Red)
OSD/TTX Output (Green)
OSD/TTX Output (Blue)
Fast Blank/Half Contrast Output
When The Caption Function Adopted, Used.
Not Used (Programmed Gound Level)
Sound Amp Mute
High
Picture On/Off Control
Low
Not Used (Programmed Gound Level)
Alignment and Adjustments
4-21