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4-5
Trouble shooting chart
No video display
No Video display
Yes
Check if CN7/CN8 fix well from
No
Fix CN7,CN8 in AV board
AV board
to mainboard.(the
solder of CN7/CN8 is OK )
Yes
No
Add L452
Check if L452 is on main BD
Yes
No
Check
If
R616 is
Add R616
on
Main BD
Replace the main board
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