LG 42LH90 Manual page 71

42LH90 Main (Front Side) Component Voltages
Serial Flash
IC101 IC705
Pin Memory
[1] 0.05V
[2] 3.2V
[3] 2.5V
[4] Gnd
[5] 0V
[6] 0V
[7] 3.3V
[8] 3.3V
HDCP
IC105 IC706
Pin EEPROM
[1] Gnd
[2] Gnd
[3] 3.29V
[4] Gnd
[5] 3.3V
[6] 3.3V
[7] 0V
[8] 3.3V
+1.8V_DDR
IC701 IC707
Pin Regulator
[1] 0V
[2] 3.2V
[3] 3.2V
[4] n/c
[5] n/c
[6] 1.8V
[7] 0.8V
[8] Gnd
+3.3V_FE
IC704 IC708
Pin Regulator
[1] 0.8V
[2] Gnd
[3] 5V
[4] 7.5V
[5] 5V
[6] 3.3V
[7] 3.3V
[8] 2.1V
+1.26V_VDDC
IC1000
Pin Regulator
[1] 0.8V
[2] Gnd
[3] 5V
[4] 6V
[5] 3.2V
[6] 1.2V
[7] 1.26V
[8] 5V
5V_EXT
IC1001
Pin Memory
[1] 0.8V
[2] Gnd
[3] 12V
[4] 9.6V
[5] 5V
[6] 4.97V
[7] 4.97V
IC1002
[8] 1.9V
+1.8V_MEMC
Pin Regulator
[1] 0.8V
[2] Gnd
[3] 4.92V
[4] 6.5V
IC1203
[5] 4.8V
[6] 1.8V
[7] 1.8V
[8] 4.8V
+1.26V_MEMC
Pin Regulator
[1] Gnd
IC3500
[2] 0.8V
[3] 1.26V
[4] 1.26V
[5] 1.8V
[6] 5V
[7] 1.26V
[8] 5V
+1.26V_PVSB
IC3503
Pin Regulator
[1] 0V
[2] 3.39V
[3] 3.4V
[4] 0V
[5] 0V
IC3204
[6] 1.21V
[7] 0.8V
[8] Gnd
+3.3V_PVSB
Pin +3.3V_FE
[1] 4.94V
[2] 4.94V
[3] Gnd
[4] 3.4V
[5] 1.25V
Q100
+5V_TU
Pin Tuner
[1] 8.92V
[2] 1.88V
[3] 5.04V
Q106
[4] 0V
[5] Gnd
SPIF Optical
Pin Audio
[1] 1.58V
Q702
[2] 3.2V
[3] Gnd
[4] 1.61V
[5] 3.21V
+3.3V_Dimming
Pin Regulator
[1] Gnd
[2] 3.3V
[3] 5V
71
+1.8V Reg
Q706
Pin Dimming Pin
[1] 0.58
[2] 1.8V
[3] 3.19V
Dimming
Pin EEPROM
[1] Gnd
[2] Gnd
[3] Gnd
[4] Gnd
Q1200
[5] 3.3V Pin
[6] 3.3V
[7] 0V
[8] 3.3V
W/P IC101
D1000
Pin Pin
B 0V
C 2.5V
E Gnd
S5/S6 Reset
Pin Mstar
B 0V
C 3.28V
E 0V
INV_ON
Pin Inverter
B 0.05V
C 4.66V
E Gnd
+5V/12VLVDS
Switch
[1] 5.1V
[2] 0.29V
[3] 11.9V
[4] 5.99V
[5] 11.98V
[6] 11.98V
[7] 5.06V
[8] 5.06V
IR RS232
Buffer
B 0.634V
C 0.97V
E Gnd
Speed Up Reset
IC1004
C 3.4V
A 3.38V