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Check ST_Voltage
Check IIC bus
lime (SDA, SAC)
Check/ Replace F1701
Is the voltage at VCC of IC001
ST_1.8V and ST_3.3V?
Check/
Replace IC500
Check the voltage at
C824(+) 5.6V
Check +B voltage
125 ~ 135V or
OPEN
Check/ Replace D801
0V
Check/ Replace IC801
0V
OK
NO
NO
NO
YES
OK
YES
YES
0V
Check/ Replace
Q422, T402
Is the waveform at
Drain Q408 normal?
5. No raster
Check F1701 Fuse
on PSW Board
Does the square
waveform from PIN
23 of IC500 appear?
Check the voltage at
pin2 of IC801
Check the voltage of
C804
Check/ Replace IC802
PWR port DB801
0V
Check the voltage at
pin4 of IC801
Check/ Replace T802
0V
Check the output
IC830, IC840, IC843
Check the voltage at
IC812 B+ Port
Copyright©2007 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
LGE Internal Use Only
Содержание 29FC2RNX/RNB
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