LG 50PC1DR - - 50" Plasma TV Troubleshooting Manual page 46

1. Check LED ( Normal status lighting or not )
2. CHECK OSC X1 output. (100MHZ)
3. Check CTRL input voltage
(CONNECTOR P10)
4. CHECK each FET 3.3V, 5V,1.8V., 2.4V
+5v
GND
Probe
3.3vdc
Test
point
1.8vdc
2.4vdc
5vdc
Plasma Display Panel Troubleshooting - 2007
Control Board
Check
FET's
OSC(X1)
Check oscillator state.
Be careful to avoid
physical shock.
46
Troubleshooting
100.0 MHZ
Input
voltage