Hi ive got 2 cq61 laptops but only one screen which im having trouble with both of the mother boards one when plugged in just has a white screen and the other when the screens plugged in works but has no backlight am i right in thinking that i need a new inverter?
compaq cq61 not working
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Re: compaq cq61 not working
Forgot to mention they both work fine on external screen -
Re: compaq cq61 not working
did you switch them ? white one without backlight?Just cook it! It's already broken.Comment
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Re: compaq cq61 not working
I Think you have AMD or nvidia version of CQ61 try to reball the north bridge or GPU chip
in most cases reball solve the problemComment
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Re: compaq cq61 not working
If the screens plus the inverter are ok, then reball the gpu,
i don't think the north brige, cuz it work on extern.The Night Drop Down, I Will Keep Try Until..., You Never know.
Dushi Kòrsou, Nos Tei.Comment
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Re: compaq cq61 not working
Hi my friend reballed both of the motherboards and still have no backlight through motherboards I used in car dvd screen inverter and the screen lights up so its not the backlight bulb so im quite stuck is there a circuit on the motherboard that powers the inverter? I get 18v on inverter plugComment
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Re: compaq cq61 not working
There's schematic...
What's the behaviour of both boards after reball???
Still the same?Attached FilesComment
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Re: compaq cq61 not working
Right I tried to measure voltages on cn1 and managed to blow up the mother board lol so have to try and fix the other one (one with picture no backlight) on the inverter the voltages are as follows
1-18.64v
2-0.0v
3-3.26v
4-0.0v
Im sure pin 4 is ground and pin 1 is the right voltage but what should 2 and 3 be?Comment
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