Acer AL1713sg Service-Handbuch - Seite 28

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Power LED Amber
Is Power LED Amber?
Do the Hsync. & Vsync. Signals exist
in CN301 #13& #14 separately?
Do the Hsync. & Vsync. Signals exist
in R304 & R305?
Do the Hsync. & Vsync. Signals exist
in U401 #101 & #100?
Is the frequency 14.318MHz at #102
Change U401
YES
YES
YES
YES
of U401?
YES
END
NO
Insert VGA Cable correctly
NO
Check R304 & R305
NO
Change R304 & R305
NO
Change X401
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