LG 32LG40 Training Manual page 35

Main PWB (Back Side) Regulator Checks
Main PWB (Back Side) Regulator Checks
IC401 BCM RESET
PIN FUNCTION
14 IN
1 On/Off Control
6 OUT
IC801 +1.8V_NTP REGULATOR
PIN FUNCTION
1 Gnd
2 OUT
3 IN
IC805 D1.2V/A1.2V BCM REGULATOR
PIN FUNCTION
6,7,8,10 IN
17 On/Off Control
1,2,3,4,5 OUT
13, 14,15,16 n/c
11,12,18,
Gnd
19,20
Screen Print for Pin No is incorrect, use IC
NAME STBY
D3.3V_BCM 0V
Reset from IC400 0V
BCM_RESET 0V
NAME STBY
Gnd Gnd
'+1.8V_NTP 0V
3.3V_TMDS_SW 0.26V
NAME STBY
+5V_SUB 0.38V
Power_CTL_1.2V 0V
D1.2V_BCM 0V
n/c 0V
Gnd Gnd
IC808 ST-BY 3.3V DC-DC CONVERTER
RUN PIN FUNCTION
3.41V 2 IN
3.4V 3 OUT
3.4V 4 Gnd
Q900 LVDS 12V SWITCH CONTROLLER Q901
RUN PIN FUNCTION
Gnd B Control
1.8V C Pull Down 12V
3.29V E Gnd
Q901 LVDS 12V SWITCH
RUN PIN FUNCTION
5V 1,3 IN
3.41V 2,4 On/Off Control
1.29V 5,6,7,8 OUT
0V
Gnd
35
NAME STBY
ST_5V 5V
3.3VST_MICON 3.43V
Gnd Gnd
NAME STBY
LVDS_PANEL_CTRL 0V
LVDS Switch Control 0V
Gnd 0V
NAME STBY
12V 0V
Q900 0V
LVDS 12V 0V
LCD DV 32LG40
RUN
5V
3.43V
Gnd
RUN
0.75V
0V
0V
RUN
12.36V
6.16V
12.36V