LG 42PG20 Training Manual page 59

MAIN bOARD CONNECTORS
P302
LVDS To Control
P303
To Front Controls
JK501
Speaker Out
Pin Stby
1 0V
3 0V
5 Gnd
7 Gnd
9 0.89V
11 0V
13 0V
15 0V
17 0V
19 0V
21 0V
23 0V
25 0V
P701
To Power Supply
IC1001
X100
12 Mhz
RS-232
Remote
Optical
Audio
A/V Composite
Component
P302 "Main" P121 "Control"
Run Diode Check
0V Open
0V Open
Gnd Gnd
Gnd Gnd
3.29V 1.97V
1.25V 1.17V
1.25V 1.17V
1.27V 1.17V
1.22V 1.17V
1.24V 1.17V
1.24V 0.83V
0.58V 1.01V
3.29V Open
CIRCUIT DeSCRIPTIONS
SW100 Reset
IC702
X400
25 Mhz
RGB/PC
Audio HDMI Inputs
Pin Stby Run Diode Check
2 0V 0V
4 0V 0V
6 Gnd Gnd
8 Gnd Gnd
10 0.89V 3.29V
12 0V 1.21V
14 0V 1.21V
16 0V 1.21V
18 0V 1.25V
20 0V 1.21V
22 0V 1.18V
24 0.93V 3.29V
26 Gnd Gnd
USB
HDMI 3
AV 3
Open
Open
Gnd
Gnd
1.97V
1.17V
1.17V
1.17V
1.17V
1.17V
1.17V
1.5V
Gnd
PDP Training - Fall 2008
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