Read LG 47LG5010 / 47LG5020 / 47LG5030 (CHASSIS:LD84D) Service Manual online
C
2008
- 26 -
Check J703 ,
Can you see the norm al
wave form?
Check the input of RGB Au dio
switch( IC1001) ,
Can you see the norm al wave form?
Check the output of RGB Audio
switch( IC1001) ,
Can you see the norm al wave form?
YES
YES
YES
NO
J703
may have problem . Replace this Jack.
NO
After checking the Power of RGB Audio
switch, you should decide to repla ce
RGB Au dio s witch or not.
NO
After checking the Power of RGB Audio
switch y ou sho uld deci de to repla ce
RGB Au dio s witch or not.
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.
Check the input of RGB Video
switch( IC700) ,
Can you see the norm al wave form?
NO
After checking the Power of RGB Video
switch, you should decide to repla ce
RGB Video s witch or not.
YES
RGB PC doesn’t display
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