Gnd Gnd Gnd Gnd; N/C 0V 0V - LG 32LG40 Training Manual

MAIN vOlTAGES
P800 "Main" to P201 "SMPS"
Pin Label
1, 2 16V
3, 4 Gnd
5, 6 12V
7, 8 Gnd
9, 10 ST-5V
11, 12 ST-5V
13, 14 Gnd
15, 16 Gnd
17 VBR-B 5V-MNT
18 AC-DET
19 RL-ON
20 INV-On/Off
21 BR1
22 VBR-B
23 n/c
24 n/c
ADIM Pin 21 varies according to OSD Backlight
setting. 0.9V 0% to 3.3V 100%
Pin Label Stby
1 n/c 3.34V
Disc 3.4V With Disc Player
2 3.34V
Check
3 n/c 3.34V
4 n/c 3.34V
5 Gnd 0V
6 Pr 0V
7 Pb 0V
8 Y 0V
9 Gnd 0V
10 n/c 0V
11 Gnd 0V
12 n/c 0V
13 Gnd 0V
Stby Run Diode Check
0V 16V OL
Gnd Gnd Gnd
0V 11.8V 3.03V
Gnd Gnd Gnd
5V 5.15V 1.23V
5V 5.15V 1.23V
Gnd Gnd Gnd
Gnd Gnd Gnd
0V 3.3V OL
5V 4.57V OL
0V 2.86V 1.25V
0V 3.29V 2.15V
0V 1.68V OL
0V 3.38V 2.15V
0V 3.2V OL
0V 0V OL
P904 "Main" to CN401 "DVD Player"
Run Diode Check
3.34V
0V No Disc Player
3.3V
3.3V
Gnd
0.8V
0.8V
0.6V
0V
0V
0V
0V
0V
CIRCUIT DeSCRIPTIONS
P401 "MAIN" to "Front Keys"
Pin Label
1 KEY3
2 KEY4
3 Gnd
4 Gnd
5 KEY-1
6 KEY-2
7 n/c
8 ST-5V
9 PWM-LED
10 IR
11 n/c
12 Gnd
13 LED-G
14 LED-R
15 Gnd
Pin Label
OL 14 n/c
1.60V 15 n/c
OL 16 DVD-SPDIF 3.38V 1.8V
OL 17 DVD-MUTE
Gnd 18 DVD-L-In2
OL 19 Gnd
OL 20 DVD-R-In2
OL 21 n/c
Gnd 22 Gnd
OL 23 n/c
Gnd 24 n/c
0.83V 25 Gnd
Gnd 26 n/c
Stby Run Diode Check
3.4V 3.4V 1.4V
3.4V 3.4V 1.4V
0V 0V Gnd
0V 0V Gnd
3.4V 3.4V 1.4V
3.4V 3.4V 1.4V
0V 0V OL
5V 5V 0.53V
0V 0V 0.8V
4.1V 4.1V 2.3V
0V 0V OL
0V 0V Gnd
0V 2.1V 0.8V
2.1V 0V 0.8V
0V 0V Gnd
Stby Run Diode Check
0V 0.7V OL
0V 0V OL
0.83V
0V 0V OL
0V 2.4V OL
0V 0V Gnd
0V 2.4V OL
0V 0V OL
0V 0V Gnd
0V 0V OL
0V 0V OL
0V 0V Gnd
0V 0V OL
Fall 2008 LCD Training Fall 2008 LCD Training
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