Having problems with your Gateway M305CRV Notebook ?

Gateway nx560x screen black

\015 I have a Gateway laptop NX560X has run great for years. No new hardware or software has been added lately.\015\012The LCD blinked and went out. I could still see a fiant image. When attached to an external monitor I can tell the cpu works fine.\015\012Research led me to believe it was the power inverter. Replaced it. Screen worked for 1 1/2 days blinked and went out. Replaced the Power Inverter again. Same thing. Replace the entire screen - same thing. Leads me to believe there's something else wrong.\015

Answers :

RE:The ribbon cable is in good shape and is firmly connected at both ends.

That does not tell anything you either need to test the ribbon cable with a multimeter, and even there you cannot be sure that is not one of the connector bad.

The inverter has a resistor that will blow if there is a power problem.
A full test on the inverter is complicate , as it will require an oscilloscope, but understanding if an inverter is not working at all is not too difficult.

Thest the wiring harness that is connecting the inverter to motherboard, if you do not have 5 V in there then replace wiring cable.

Testing the inverter output is dangerous , as there is high voltage in there, however, if the inverter has regular low V in input, and no AC out, then the inverter is again faulty.

If the inverter is defective replace it.

If the inverter is fine try replacing ribbon cable, if that does not work you have a faulty LCD display, or a defective video chipset bus to the internal LCD.

If I was in your shoes I would start looking for a same model laptop for spares on Ebay, that is the cheapest way to get parts.

The inverter output
Hi Rich.
\015\012
\015\012Ok, you have gone through power inverters and even put in a new screen. The next two things to look at are the wiring harness and the connnector at the board itself. Check for cont. at both ends of your harness. Good Luck.
\015\012
\015\012Rob
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