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7-2. Main board failure check
No picture but have
sound
Check if there is +43V at
PCN4
Yes
Check if there is +12V at
Pin35 in CN202
Yes
Change LVDS wire
test if PU5 Pin8 3.3V
Pin1
12V
No
No
Replace the QD6
Still having
Change Panel
problems
- 27 -
Model No.:
No
normally
Yes
Check if PQ6
No
PD14 PR46
works normally
Service Manual
Replace PU5
Replace PQ6
PD14
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