LG 42LH90 - Time Settings: Automatic Clock; Setting Clock Automatically; Time Zone and Daylight Saving Selection

42LH90 MAIN (FRONT SIDE) SIMICONDUCTORS
IC101 Serial Flash IC704 +3.3V_FE IC707 +1.8V_MEMC IC1001 +3.3V_PVSB IC3500 +3.3V_Dimming Q100 W/P IC101 Q706 +5V/12VLVDS
Pin Memory Pin Regulator Pin Regulator Pin +3.3V_FE Pin Regulator Pin Pin Switch
[1] 0.05V [1] 0.8V [1] 0.8V [1] 4.94V [1] Gnd B 0V [1] 5.1V
[2] 3.2V [2] Gnd [2] Gnd [2] 4.94V [2] 3.3V C 2.5V [2] 0.29V
[3] 2.5V [3] 5V [3] 4.92V [3] Gnd [3] 5V E Gnd [3] 11.9V
[4] Gnd [4] 7.5V [4] 6.5V [4] 3.4V [4] 5.99V
[5] 0V [5] 5V [5] 4.8V [5] 1.25V IC3503 +1.8V Reg Q106 S5/S6 Reset [5] 11.98V
[6] 0V [6] 3.3V [6] 1.8V Pin Dimming Pin Mstar [6] 11.98V
[7] 3.3V [7] 3.3V [7] 1.8V IC1002 +5V_TU [1] 0.58 B 0V [7] 5.06V
[8] 3.3V [8] 2.1V [8] 4.8V Pin Tuner [2] 1.8V C 3.28V [8] 5.06V
[1] 8.92V [3] 3.19V E 0V
IC105 HDCP IC705 +1.26V_VDDC IC708 +1.26V_MEMC [2] 1.88V Q1200 IR RS232
Pin EEPROM Pin Regulator Pin Regulator [3] 5.04V IC3504 Dimming Q702 INV_ON Pin Buffer
[1] Gnd [1] 0.8V [1] Gnd [4] 0V Pin EEPROM Pin Inverter B 0.634V
[2] Gnd [2] Gnd [2] 0.8V [5] Gnd [1] Gnd B 0.05V C 0.97V
[3] 3.29V [3] 5V [3] 1.26V [2] Gnd C 4.66V E Gnd
[4] Gnd [4] 6V [4] 1.26V IC1203 SPIF Optical [3] Gnd E Gnd
[5] 3.3V [5] 3.2V [5] 1.8V Pin Audio [4] Gnd D1000 Speed Up Reset
[6] 3.3V [6] 1.2V [6] 5V [1] 1.58V [5] 3.3V Pin IC1004
[7] 0V [7] 1.26V [7] 1.26V [2] 3.2V [6] 3.3V C 3.4V
[8] 3.3V [8] 5V [8] 5V [3] Gnd [7] 0V A 3.38V
[4] 1.61V [8] 3.3V
IC701 +1.8V_DDR IC706 5V_EXT IC1000 +1.26V_PVSB [5] 3.21V
Pin Regulator Pin Memory Pin Regulator
[1] 0V [1] 0.8V [1] 0V
[2] 3.2V [2] Gnd [2] 3.39V
[3] 3.2V [3] 12V [3] 3.4V
[4] n/c [4] 9.6V [4] 0V
[5] n/c [5] 5V [5] 0V
[6] 1.8V [6] 4.97V [6] 1.21V
[7] 0.8V [7] 4.97V [7] 0.8V
[8] Gnd [8] 1.9V [8] Gnd
42LH90 MAIN (BACK SIDE) SIMICONDUCTORS
IC103 Reset Gen IC703 +3.3V_ST IC1200 RGB IC1202 USB +5V Q703 5V Switch Q1001 Tuner Video
Pin Mstar IC100 Pin Regulator Pin EEPROM Pin Switch Pin Control Pin Buffer
[1] Gnd [1] 0V [1] Gnd [1] 4.95V B 0.6V B 3.09V
[2] 0V [2] 1.8V [2] Gnd [2] Gnd C 0.03V C 0V
[3] 3.3V [3] 3.21V [3] Gnd [3] 3.21V E Gnd E 3.72V
[4] Gnd [4] 4.95V
IC104 RGB (PC) [5] 4.82V [5] 0V Q704 1st 12V LVDS D102 Audio Mute
Pin EEPROM IC800 SPI Flash [6] 4.82V [6] 4.95V Pin Switch Control Pin Routing
[1] Gnd Pin [7] 4.82V B 0.05V A1 0.047V
[2] Gnd [1] 0.12V [8] 4.82V IC3505 Reset Gen C 0.65V C 0.089V
[3] Gnd [2] 1.13V Pin for IC3502 E Gnd A2 0V
[4] Gnd [3] 3.26V IC1201 RS232 [1] 3.3V
[5] 3.22V [4] Gnd Pin Rx/Tx [2] Gnd Q705 2nd 12V LVDS D500 Shunt for
[6] 3.22V [5] 0.06V [1] 3.3V [3] 3.22V Pin Switch Control Pin IC501
[7] 0V [6] 1.2V [2] 5.56V B 0.65V A1 3.25V
[8] 3.22V [7] 3.27V [3] 0.02V Q105 PWR On Delay C 0.0V C 3.12V
[8] 3.27V [4] 0.03V Pin Q2405 E Gnd A2 0V
IC107 Power Det [5] 5.46V B 0V
Pin Gen IC1003 9V Reg [6] 5.5V C 1.95V Q1000 Tuner SIF D1223 5V Routing
[1] Gnd Pin to IC1002 [7] 5.5V E Gnd Pin Buffer Pin for IC1200
[2] 3.9V [1] 12V [8] 0V B 2.4V A1 0V
[3] 3.28V [2] Gnd [9] 3.29V Q600 Audio Mute C 0V C 4.82V
[3] 8.9V [10] 3.24V Pin Switch E 3.85V A2 5.11V
IC702 +3.3V_ST For Tuner Voltage 5V [11] 0.02V B 0.08V
+3.3V_AVDD_MPLL [12] 3.29V C 3.26V
Pin Regulator [13] 0V E Gnd
[1] Gnd [14] 5.5V
[2] 3.29V [15] Gnd
[3] 5.11V [16] 3.29V