LG 29FX5REE Service Manual page 13

Is the voltage at
each pin voltage of IC11
Yes
Check pin 60
No
Of IC11(H - Out)
Check &
Yes
Replace
IC11
Check Q402
Collector waveform
No
Check &
Yes
Replace
Q402
Check T401
& each pin voltage
No
Yes
Check &
Replace
T401
Check Q401
No
Collector waveform
Check &
Yes
Replace
Q401
Check & Replace
T402
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NO RASTER
CHECK B+
At D829 cathode
Normal
No
Check the
In/out of
regulator
(IC821, IC822
IC823, IC824
IC825)
No
Ok
- 13 -
Abnormal
Open
Check
Fuse of AC line
Ok
No
Check the Voltage
Of C803
Ok 140 ~ 310V
Check the Voltage
Pin 4 of IC801
Ok 18 ~ 20V
Check / Replace
IC801, IC802, IC826
Check Fuse and Rectifition Diode of
secondary Load of SMPS trans(T803)
Check / Replace
IC11
Check / Replace
Fuse
Check / Replace
DB801
No
Check / Replace
Fuse IC801