Acer AL1716 Service Manual
Also see for AL1716: SpecificationsUser guideUser manualService guideService guide
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4.5 Abnormal screen for VGA sourceCheck the R.G.B video signals fromcomputer input on P302 of video connectorFailure Point:1. No R.G.B video signals output from host computer. Check the computer.2. VGA video signal cable disconnectedCheck VGA R.G.B inputvideo signals on I306 pin99, pin96, pin93respectively that their level is0.5Vp-p to 0.7Vp-pNGOKFailure Point:In the case of the RED signal. (Green and Blue signals are the same path, too.)1. Video cable is failure.2. l306 is damaged.3. FB305, FB307, FB309, FB308, FB306, FB310,R310~R318, C317~C320, C324,C325 is Open4. R313, R314, R315 is short.NGOKCheck all LVDS signals beingoutput to P306 from I306? NGProceed ‘Checking the resolution changed ICmovement’ sectionOKFailure Point:Printed wire is open between I306 and P306.4. Troubleshooting (continued)Go to cover page18 ACER AL1716W |
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