LG 50PK950 Training Manual page 162

50PK750 Main Board Component Voltages
50PK950 Main Board (Front Side) Component Voltages
IC400 3.3V_NEC_ST IC402 D3.3V / +3.3V
Pin Regulator Pin Regulator
[1] Gnd [1] 5V
[2] 3.3V [2] 3.3V
[3] 5V [3] 3.3V
[4] 7.48V
IC401 DDR 1.8V [5] 3.3V
Pin Regulator [6] 0.8V
[1] 6.75V [7] 5V
[2] 5.0V [8] Gnd
[3] 1.85V
[4] Gnd IC403 A2.5V
[5] Gnd Pin Regulator
[6] 2.356V [1] 1.26V
[7] 0.9V [2] 2.5V
[8] 1.0V [3] 5V
[9] 2.4V
[10] 3.3V
50PK950 Main Board (Back Side) Component Voltages
IC100 RS232 IC602 DDR_VTT
Pin Control Pin Regulator
[1] 1.65V [1] Gnd
[2] 1.65V [2] 3.3V
[3] 4.56V [3] 0.43V
[4] 1.65V [4] 0.94V
[5] 1.65V [5] 1.857
[6] 4.66V [6] 3.3V
[7] Gnd [7] 1.86V
[8] n/c [8] 0.93V
[9] 1.657V
[10] 0V IC700 Micro
[11] 4.5V Pin EEPROM
[12] 0V [1] Gnd
[13] 1.657V [2] Gnd
[14] 5.12V [3] Gnd
[4] Gnd
IC101 RS232 [5] 3.3V
Pin EEPROM [6] 3.3V
[1] Gnd [7] Gnd
[2] Gnd [8] 3.3V
[3] Gnd
[4] Gnd
[5] 4.325V
[6] 4.8V
[7] 5.12V
[8] 5.0V
IC404 7V (to IC405) IC405 D1.2V / A1.2V
Pin Regulator Pin Regulator
[1] 17.1V [1] Gnd
[2] 7.11V [2] 4.99V
[3] 7.11V [3] Gnd
[4] 11.95V [4] 1.26V
[5] 3.3V [5] 0V
[6] 0.8V [6] n/c
[7] 5.0V [7] 6.17V
[8] Gnd [8] 5.0V
[9] 5.0V
[10] 5.0V
[11] 1.27V
[12] Gnd
[13] 3.3V
[14] 0.83V
IC406 5V (Tuner)
Pin Reg
[1] 7.13V
[2] 5V
[3] 7V
IC702 RS232 IC704 RS232
Pin Selector Pin Selector
[1] 3.34V [1] 3.26V
[2] 5.78V [2] 3.26V
[3] 0V [3] n/c
[4] 0V [4] n/c
[5] 0.2V [5] n/c
[6] (-5.68V) [6] Gnd
[7] 5.78V [7] n/c
[8] Gnd [8] Gnd
[9] n/c [9] Gnd
[10] Gnd [10] 4.99V
[11] 3.3V [11] 4.99V
[12] 0V [12] 0.88V
[13] 0V [13] 3.3V
[14] (-5.68V) [14] 3.3V
[15] Gnd [15] 3.3V
[16] 3.3V [16] 5V
IC1001 Motion Remote
Pin IC
[1] 0V (3.3V M_Remote Used)
[2] 3.3V (0.3V M_Remote Used)
[3] n/c
[4] n/c
[5] n/c
[6] Gnd
[7] Gnd
[8] Gnd
[9] n/c
[10] 0.02V
[11] 0V
[12] 3.3V
[13] 0V (3.3V M_Remote Used)
[14] 3.3V
[15] 3.3V
[16] 3.3V
IC705 NVRAM IC1102 USB2 5V
Pin Pin
[1] Gnd [1] Gnd
[2] Gnd [2] 5.14V
[3] Gnd [3] 5.14V
[4] Gnd [4] 0.04V
[5] 3.28V [5] 3.28V
[6] 3.28V [6] 4.94V
[7] Gnd [7] 4.94V
[8] 3.28V [8] n/c
IC1101 USB1 5V
Pin Regulator Q701 RS232 IR
[1] 5.0V Pin Buffer
[2] Gnd [B] 0.574V
[3] 3.2V [E] Gnd
[4] 0V [C] 0V
[5] 0V
[6] 5.1V Q900 SCL to LVDS
[7] 0V Pin FET
[8] 3.28V [G] 3.28V
[S] 3.28V
[D] 3.28V
IC707 Reset IC Q200 CEC Remote
Pin Pin HDMI
[1] 3.3V [B] 2.59V
[2] Gnd [G] 3.3V
[3] 3.31V [S] 2.58V
[D] 3.25V
IC1400 Reset IC
Pin Q201 Hot Swap
[1] 0V Pin HDMI1
[2] 1.29V [B] 4.27V
[3] 3.27V [C] 0V
[E] Gnd
Q100 RGB W/P Q202 Hot Swap
Pin Pin HDMI2
[B] 0V [B] 4.27V
[C] 5.12V [C] 0V
[E] Gnd [E] Gnd
Q101 Wired IR Q203 Hot Swap
Pin 1st Buffer Pin HDMI3
[B] 0V [B] 4.27V
[C] 3.33V [C] 0V
[E] Gnd [E] Gnd
Q102 Wired IR Q204 Hot Swap
Pin 2nd Buffer Pin HDMI1
[B] 0.6V [B] 0V
[C] 0V [C] 4.26V
[E] Gnd [E] Gnd
Q901 SDA to LVDS
Pin FET
[G] 3.276V
[S] 3.289V
[D] 3.28V
Q1402 Video Buffer
Pin
[B] 2.05V
[E] 2.75V
[C] Gnd
Q205 Hot Swap Q702 IR Out
Pin HDMI2 Pin 2nd Buffer
[B] 0V [B] 0V
[C] 4.26V [C] 3.32V
[E] Gnd [E] Gnd
Q206 Hot Swap Q703 IR Out
Pin HDMI3 Pin 1st Buffer
[B] 0V [B] 0.62V
[C] 4.26V [C] 0V
[E] Gnd [E] Gnd
Q207 Hot Swap Q1300 Wired IR
Pin HDMI4 Pin 1st Buffer
[B] 4.28V [E] Gnd
[C] 0V [B] 0V
[E] Gnd [C] 17V
Q208 Hot Swap Q1301 Wired IR
Pin HDMI4 Pin 2nd Buffer
[B] 0V [G] 17V
[C] 5V [S] 17.1V
[E] Gnd [D] 0V
Q500 Flash WP Q1401 SIF Buffer
Pin Pin
[B] 0V (Flash_WP) [B] 0.165V
[C] 3.36V [E] 0.83V
[E] Gnd [C] Gnd
D200 HDMI CEC Limiter
Pin
[A1] 0V
[A2] 3.31V
[C] 3.18V
D209 HDMI Hot Swap
Pin Routing HDMI1
[A1] 5.13V
[A2] 0.15V
[C] 4.67V
D210 HDMI Hot Swap
Pin Routing HDMI2
[A1] 5.13V
[A2] 0.15V
[C] 4.67V
D211 HDMI Hot Swap
Pin Routing HDMI3
[A1] 5.13V
[A2] 0.15V
[C] 4.67V
D212 HDMI Hot Swap
Pin Routing HDMI4
[A1] 5.13V
[A2] 0.15V
[C] 4.67V