LG RT-32FZ32RP Service Manual page 15

Check if heater element is lighting.
Check the heater voltage.
Increase the screen
Check/Replace
voltage of FBT.
FR442,R910.
Check/Replace
Screen is black.
Retrace line is
CPT.
visible.
Check the waveform
Check FBT & CPT socket
at pin 3 of ic901,902,903
& CPT.
YES
NO
Check the waveform
Check the waveform
at pin 62,63,64 of IC501S.
at pin 7 of IC901,902,903.
(RGB out)
YES NO
NO
YES
Check the waveform
Check/Replace
Check/Replace Check/Replace
at pin 20,21,22 of IC501S.
IC101.
Q503,504,505. IC901,902,903.
YES
NO
Check the waveform
Check/Replace
at pin 2,76,79 of IC101S.
IC501S.
YES NO
Check the waveform at
Check/Replace
PIN52 of IC101S.(CVBS1)
IC401S,FL201S,202S,203S.
YES NO
Check the waveform at
Check/Replace
Pin2 of P213A.(Vmain)
IC101S.
YES NO
Check the waveform at
Check/Replace
TU101,Q108.
IC201S.
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