Inv On-Off; Pwm-Dim; 16.5V; 16V 0.31V - LG 32LG40 Training Manual

CIRCUIT DeSCRIPTIONS
POwER SUPPlY CONNECTORS
3
Pin Label Stby
23 N/C
2
21 BR1
19 PWR
L
17 ERR
15 Gnd
G
13 Gnd
11 5.2V
4
9 5.2V
7 Gnd
0
5 12V
3 Gnd
1

16.5V

BR1 Pin 21 can vary according to OSD Backlight setting. 0.9V 0% to 3.3V 100%
20 20
Fall 2008 LCD Training Fall 2008 LCD Training
P201 "SMPS" to P800 "Main"
Run Diode Check
0V 3.2V OL
0V 1.68V OL
0V 2.86V OL
0V 3.3V 1.26V
Gnd Gnd Gnd
Gnd Gnd Gnd
5.15V 5.15V 0.34V
5.15V 5.15V 0.34V
Gnd Gnd Gnd
0V 11.8V 1.69V
Gnd Gnd Gnd
0V 16V 0.31V
P203 "SMPS" to MCN1 "Ballast"
Pin Label STBY
1 24V 0V
2 24V 0V
3 24V 0V
4 24V 0V
5 24V 0V
6 Gnd Gnd
7 Gnd Gnd
8 Gnd Gnd
9 Gnd Gnd
10 Gnd Gnd
11 BR1 0V
Pin Label Stby
24 N/C 0V
22

PWM-DIM

0V
20 INV On/Off 0V
18 ACD 5.05V 4.57V
16 Gnd Gnd
14 Gnd Gnd
12 5.2V 5.15V 5.15V
10 5.2V 5.15V 5.15V
8 Gnd Gnd
6 12V 0V
4 Gnd Gnd
2 16.5V 0V
Run Diode Check
24.52V 0.33V
24.52V 0.33V
24.52V 0.33V
24.52V 0.33V
24.52V 0.33V
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd Gnd
Gnd Gnd
1.67V OL
Run Diode Check
0V OL
3.38V OL
3.29V OL
OL
Gnd Gnd
Gnd Gnd
0.34V
0.34V
Gnd 0V
11.8V 1.69V
Gnd Gnd
16V 0.31V