Read LG 47LG5010 / 47LG5020 / 47LG5030 (CHASSIS:LD84D) Service Manual online
C
2008
- 23 -
Check the output data of TU800
Pin 24~34
Can you see the norm al signal?
NO
Could you measure vol tage of
TU800 & IIC lines?
Are the y all norma l?
NO
You sho uld check po wer line
& IIC lines.
YES
You sho uld rep lace TUNER.
YES
Check the output of Main IC(IC100).
Especial ly you sho uld check
The H,V s ync and cloc k.
Can you see the norm al wave form?
YES
NO
After checking the Power of Main
IC(IC100) you sho uld decide to replace
Main IC or not.
This board has big problem
because
Main IC(IC100) have some trouble s.
After checking thorou ghly all path once
again, You sho uld deci de to repla ce
Main Board or not.
DTV doesn’t display
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