LG 32LD350 Troubleshooting Manual page 51

32LD350 Main (Front Side) Component Voltages
IC101 Serial Flash
Pin Memory
[1] 0.05V
[2] 3.28V
[3] 2.26V
[4] 0V (Gnd)
[5] 0V
[6] 0V
[7] 3.28V (B+)
[8] 3.28V (B+)
IC105 HDCP
Pin EEPROM
[1] 0V (Gnd)
[2] 0V (Gnd)
[3] 3.3V (B+)
[4] 0V (Gnd)
[5] 0V
[6] 3.3V
[7] 0V (Gnd)
[8] 3.28V (B+)
IC401 5V Regulator g
Pin for USB
[1] 11.9V (In)
[2] 5.09V (Out)
[3] 5.09V (Out)
[4] 0V (Gnd)
[5] 3.25V (PWR On/Off1)
[6] 0.8V
[7] 5.05V
[8] 0V (Gnd)
Q7702 HDMI 4
Pin Det
B 0.63V
C 0V
E Gnd
IC403 (+1.26V_VDDC)
Pin Regulator
[1] 0.79V
[2] 0V (Gnd)
[3] 3.37V (In)
[4] 4.47V
[5] 3.34V
[6] 1.3V (Out)
[7] 1.3V (Out)
[8] 2.96V (PWR On/Off2_1)
IC405 (+3.3V_NORMAL)
Pin Regulator
[1] 0V (Gnd)
[2] 11.92V (In)
[3] 0V (Gnd)
[4] 0.8V
[5] 0.84V
[6] 2.39V (PWR On/Off1)
[7] 3.35V (Out)
[8] 3.35V (Out)
IC406 ( (+5V_NORMAL) _ )
Pin Regulator
[1] 0V (Gnd)
[2] 11.92V (In)
[3] 0V (Gnd)
[4] 0.8V
[5] 0.84V
[6] 2.39V (PWR On/Off1)
[7] 4.98V (Out)
[8] 4.98V (Out)
D1100 5V Routing
Pin for IC1100
[A1] 0.07V
[A2] 4.98V
[C] 4.37V
IC407 (D1.8V)
Pin Regulator
[1] 0.8V
[2] 0V (Gnd)
[3] 3.38V
[4] 4.79V
[5] 3.35V
[6] 1.76V (Out)
[7] 1.76V (Out)
[8] 2.36V (PWR On/Off1)
IC1000 (+1.2V_PVSB)
Pin Regulator
[1] n/c
[2] 3.26V (Enable)
[3] 3.26V (In)
[4] n/c
[5] n/c
[6] 1.81V (Out)
[7] 1.21V
[8] n/c
IC1450 5V Shot Protection
Pin for USB
[1] 0V (Gnd)
[2] 5V (In)
[3] 5V (In)
[4] 0V (USB-Ctl)
[5]
[6] 5V (Out)
[7] 5V (Out)
[8] n/c
D7705 5V Routing
Pin for IC7701
[A1] 0V
[A2] 4.98V
[C] 4.71V
51
November 2010
IC5001 (+1.26V) for Tuner
Pin Regulator
[1] 3.3V (In)
[2] 1.26V (Out)
[3] 0V (Gnd)
Q100 Write Protect for
Pin IC101
B 0V
C 3.3V
E Gnd
Q1100 Earphone Mute
Pin 1st Driver
B 0V
C 2.26V
E Gnd
Q1103-4 EARPHONE
Pin MUTE
B 0V
C 0V
E Gnd
Q1105 Earphone Mute
Pin 2nd Driver
B 0.63V
C 0V
E Gnd
32LD350 LCD-DV