Acer X163W X163W LCD Monitor Service Guide - Page 38

Acer 3. No Raster No raster? Yes LED Blue? Yes Backlight can't be turned on. Yes Is there 14Vdc voltage on pin9 of IC501? Yes Is there high-level voltage on pin8 of IC501? Yes Are connected rightly CN501, CN502? Acer -LCD-X163W No Check power supply No Is Ok R503? No No Yes Check I/F board R503 open Connecting the output connector again Yes Is there instantaneously pulse wave on pin14, pin11 of IC501 at the moment of restart? No Yes Is Ok IC501? U501 fail No IC501 fail Yes No Is T501 ok? T501 fail Yes Check feedback circuit D507,D508. END 37