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원문 게시자: Anthony ,

본문:

Steven,

Thanks for your detailed info and picture responding to the ACD LED 24" question on the ifixit board.

I'm in a similar situation.  I was given a 24" that wouldn't display anything.  I'm able to plug the display in and get the speakers to work, charges macbook, camera works, USB works . . . but no image - blackness.

When I go into the display preferences it doesn't recognize the display.  So . . . I followed your handy steps and took the beast apart for some testing.  I was able to verify 14.7 VDC from the power supply.

Then I disconnected everything but the power connector to the Logic board and was able to verify all of the correct voltages (per your brilliant share of the photo/info).  I reconnected everything one by one and still verified correct voltages.  The only thing I didn't reconnect/check were the connections going to the LED display - "Cable1. Ambient Temp Sensor,Cable2. AIO Video,Cable3. LCD Function Interface,Cable4. LED Driver (Backlight)".

I reconnected LED just to double check if it was a loose connector - still no love.

If I'm reading your directions correctly - this would seem to indicate it's time to replace the logic board - yeah?  Is there anyway to test the LED?  Or should I just bite the bullet and order a new logic board?

Thanks so much for taking the time to post and respond.  Any insight/tips would be greatly appreciated.

Best,

Anthony

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