LG 42PJ350 Training Manual page 111

42PJ350 Main Board Back Side Component Voltages
IC203 Winbond Serial IC303
Pin Flash
[1] 0V
[2] 3.30V
[3] n/c
[4] n/c
[5] n/c IC304
[6] n/c
[7] 0V
[8] 3.3V
[9] 0V
[10] Gnd
[11] n/c IC306
[12] n/c
[13] n/c
[14] n/c
[15] 0V
[16] 0V
IC307
IC301 1.8V_MST
Pin Regulator
[1] 0.6V
[2] 1.85V (Out)
[3] 3.3V (In)
IC302 3.3V_VST
Pin Regulator
[1] Gnd
[2] 3.3V (Out)
[3] 5.09V (In)
3.3V_MST IC501 HDCP Data
Pin Regulator Pin EEPROM
[1] Gnd [1] Gnd
[2] 3.3V (Out) [2] Gnd
[3] 5.04V (In) [3] 3.3V
[4] Gnd
1.2V_DVDD Reg [5] 3.3V
Pin Dig Ch Only [6] 3.3V
[1] Gnd [7] 3.3V
Only on
[2] 1.2V (Out) [8] 3.3V
with Dig
[3] 3.3V (In)
Channel
3.3V_TU IC502 IC503, IC504
Pin Regulator EDID Data
[1] Gnd Pin For HDMI
[2] 3.3V (Out) [1] Gnd
[3] 4.97V (In) [2] Gnd
[3] Gnd
1.8V_TU [4] Gnd
Pin Regulator [5] 4.52V
[1] Gnd [6] 4.52V
[2] 1.8V (Out) [7] 3.33V
[3] 3.3V (In) [8] 4.53V
IC602 RGB
Pin EEPROM
[1] Gnd
[2] Gnd
[3] Gnd
[4] Gnd
[5] 5.09V
[6] 5.09V
[7] 3.33V
[8] 5.09V
IC701 USB 5V Q301
Pin Limiter
[1] 4.97V (In)
[2] Gnd
[3] 3.3V (Enable)
[4] 0V
[5] 0V Q302
[6] 4.97V (Out)
IC703 RS232 Tx/Rx
Pin
[1] 3.3V
[2] 5.45V Q303
[3] 0V
[4] 0V
[5] (-5.37V)
[6] (-5.4V)
[7] (-5.4V)
[8] 0V Q304
[9] 3.3V
[10] 3.3V
[11] n/c
[12] n/c
[13] 0V
[14] 5.45V Q501, Q503
[15] Gnd Q504
[16] 3.3V (B+)
111
Driver for 5V_MST Q702 RS232
Pin Switch Q302 Pin Tx Buffer
[B] 0.6V [B] 0.6V
[C] 0V [C] 0V
[E] Gnd [E] Gnd
5V_MST D502 HDMI CEC Limiter
Pin Switch Pin
[G] 0V [A1] 0V
[S] 5.09V [A2] 3.28V
[D] 5.04V [C] 3.1V
3.3V_PVSB Sw
Pin Dig Ch Only
[G] 0V
Only on
[S] 3.3V
with Dig
[D] 3.3V Channel
Driver for 3.3V_PVSB
Pin Switch Q303
[B] 0.64V
Only on
[C] 0V
with Dig
Channel
[E] Gnd
Hot Swap
Pin Switch for HDMI
[B] 0V
[C] 0V
[E] Gnd
August 2010 42PJ350 Plasma