Acer AL2051W Technical Information PDF herunterladen (Seite 36)

White screen

Note: 1. If Replace “MAIN-BOARD”, Please re-do “DDC-content” programmed & “WHITE-Balance”.

2. If Replace “ PWPC” only, Please re-do “ WHITE-Balance”

White screen

Measure Q701 base

is high level?

X401 oscillate

waveform is normal

Check Q701, Q702 is

broken or CN407 solder?

Check Correspondent

component.

Replace Panel

Check Correspondent

component.

Replace U402

Replace X401

Check reset circuit o

U402 is normal

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Acer AL2051W Technical Information Seite 36