LG 32LG40 Training Manual page 33

Main Board (Front Side) Regulator Checks 2 of 2
Main Board (Front Side) Regulator Checks 2 of 2
IC806 D3.3V/A3.3V_BCM Regulator turns on LD800
PIN FUNCTION
1 On/Off Control
2 IN
3 Gnd
4 OUT
IC807
PIN FUNCTION
1 IN
2 On/Off Control
3 OUT
4 n/c
5 Gnd
IC809
PIN FUNCTION
6,7,8,10 IN
17 On/Off Control
1,2,3,4,5 OUT
14,15 n/c
11,18,19,20 Gnd
NAME STBY
Power_CTL_3.3V 0V
+5V_SUB 0.36V
Gnd Gnd
D3.3V_BCM 0.1V
D3.3V/A3.3V_BCM Regulator
NAME STBY
+9V 0V
Power_CTL_3.3V 0V
+5V 0V
n/c n/c
Gnd Gnd
D2.6V/A2.6V_BCM Regulator
NAME STBY
+5V_SUB 0.36V
Power_CTL_2.6V 0V
D2.6V_BCM 0V
n/c n/c
Gnd Gnd
Q801
RUN PIN FUNCTION
3.4V 1,3 IN
5V 2,4 On/Off Control
Gnd 5,6,7,8 OUT
3.4V Q802 CONTROLLER for 5V SUB SWITCH Q801
PIN FUNCTION
RUN B On/Off Control
8.9V C Pull Down
3.4V E Gnd
5V Q400
n/c PIN FUNCTION
Gnd B Reset
C Vcc
RUN E Gnd
4.98V
3.41V
2.66V
n/c
Gnd
LCD DV August 2008 32LG40
33
5V SUB SWITCH
NAME
ST_5V
Q802
+5V_SUB
NAME
RL_ON
ST_5V
Gnd
RESET GENERATOR FOR MICRO IC407
NAME
Reset
3.3VVST_MICON
Gnd
STBY RUN
0V 5V
0V 0.28V
0V 5V
STBY RUN
0V 3.29V
0V 5V
Gnd Gnd
STBY RUN
0.6V 0.6V
0V 0V
Gnd Gnd