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the42net1

Macbook Core Duo Backlight won't work

Reply by the42net1

I recently replaced the keyboard/top of lower case with ifixit instructions. Piece of cake thanks to the great instructions here!

The bottom case needed to be replaced also, so followed instructions to a T. They were great! It took a lot longer than replacing the keyboard cover.

I put in the battery and breathed a sigh of relief when I heard the chime.

But was not a happy camper when I realized that the computer was running, but no backlight, so the only way I can see the screen at all is to have a bright light on it. Unacceptable.

I can connect to the computer with another using Screen Sharing on my WiFi network. The computer is working fine except for screen light. I connected to an external video source (my TV) and it works fine also. iSight camera works fine with iChat.

The brightness keys are set to brightest, and the display preference has brightness all the way up.

I have tried to reset the PMU a variety of different ways. No change.

Any suggestions?

Thanks in advance, Penny.

lemerise

Reply reply by lemerise

The inverter cable connector may not be well seated in his socket on the motherboard. You will have to lift the top case to check it out. Why did you replace the keyboard ? Liquid spill ?

the42net1

Reply reply by the42net1

The computer had been dropped. There was a chink out of the lower right corner that was bugging me.

I didn't know until I replaced the top case that, on the bottom case, some of the screws in the front right were stripped and it was bowing out.

The inverter cable connection is in step 31, correct?

Thank you! I will do this when I get home tonight, and let you know the outcome.

Penny

the42net1

Reply reply by the42net1

Hi Lemerise,

I opened up the computer and the inverter cable connector was not only not well seated, it was just laying there on top of the mother board.

I plugged it in and reassembled the computer, and voila! There was light!

Thank you so much for your excellent manuals and online support.

You are the greatest!

I send you joy,

Penny

lemerise

Reply reply by lemerise

That was an easy one Penny :-) It's a good thing to always double-check the motherboard connectors before installing the top case.

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Reply to: Macbook Core Duo Backlight won't work

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