MBPro starts but screen dead

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MacBook Pro 15" Core 2 Duo 모델 A1226 & A1260

2.2, 2.4, 2.5, 또는 2.6 GHz Core 2 Duo 프로세서

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Fredrik Lundin @fredriklundin

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게시일: 2011년 4월 22일

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MBPro starts but screen dead

Hi!

When I press the start button on my MBPro I hear fans, DVD, HDD rev up and power led behaves as it should, but that's it. I hear no startup chime and the screen doesn't activate at all. I have tried SMC reset, I have tried to start it with power adapter only (adapter is working, I use it on my other MB) and I have checked that the RAM is mounted correctly. I removed the hard drive and connected it to my other MB and it works correctly, so luckily I can do a back up of it. Do any of you have any suggestions what I could try next?

Sincerely

/Fredrik

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WiseGeek @wisegeek 평판: 1.3k 10 2 4 · Answer 1 · 2011-04-22T17:05:07-07:00

WiseGeek @wisegeek

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Try Hooking it up to an external display. See if you get anything. If not then reset the Pram, when its starting up press ( option-command-p-r) Until you hear two beeps. If that still doesn't work try removing one stick of ram it could be corrupt (but highly unlikely).

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I'll give it a try. Thanks!

Fredrik Lundin 의 2011년 4월 23일

No luck :-( External display doesn't react at all, PRAM reset did nothing and I tried with a couple of other RAM sticks that I know are working.

Fredrik Lundin 의 2011년 4월 23일

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MacBook Pro 15" Core 2 Duo 모델 A1226 & A1260

MBPro starts but screen dead

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