Table of Contents
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B
Display abnormal
START
Does thescreen
appear?
Yes
Is display normal?
Yes
Normal
Checkifvoltage of screen F1andF2is3.3V.
No
Check if voltage of 34 pin of UPD16311is-24V.
Check groundednegativevoltage of screen F1 and F2.
Check if connectioncordbetweenscreen and
No
Replace UPD16311.
mainboard is broken?
Check if UPD16311pinisconnected.
Check if pin of screen is connected.
7
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