No display but backlight is on

Question

MacBook Pro 13" Retina Display 2015 상반기

MacBook Pro 13" Retina Display, 모델 A1502의 2015년 3월 업데이트는 5세대 Intel Core i5 및 i7 프로세서를 포함하며 Force Touch 트랙 패드를 소개합니다.

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Amberrena @arkersey1

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게시일: 2019년 2월 21일

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No display but backlight is on

The backlight turns on but there’s no display when I turn on my Mac. The chime turns on and the keyboard lights come on. I can also connect it to an HDMI to my TV and I can see the display through there but still no display on my laptop. Maybe a lose cable? Any suggestions?

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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Did anything happen to it?

mayer 의 2019년 2월 22일

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arbaman @arbaman

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게시일: 2019년 2월 22일

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Good news is that the Mac and graphic card are still working. Bad news is without parts at hand or logic board diagnostics abilities you won’t be able to do any further troubleshooting. I wouldn’t recommend anyone to buy such an expensive new screen assembly to “see if it works”. It might be the screen as well as a logic board issue. Try reseating the screen connector on the logic board, but if that doesn’t help you’ll need to find a technically reputable lab into component level repairs.

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Pulled my back (bottom) off and swapped memory and HD out with spares (actually the original) parts and still no change... Tried reseating the screen connector and it gave me back lighting but no screen... Tried it again and cleaned the contacts on the cable lightly and all is good now...

James Hager 의 2019년 11월 21일

@James Hager It's always worth to try basic things first, good it worked out !

arbaman 의 2019년 11월 21일

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Pulled my back (bottom) off and swapped memory and HD out with spares (actually the original) parts and still no change... Tried reseating the screen connector and it gave me back lighting but no screen... Tried it again and cleaned the contacts on the cable lightly and all is good now... — James Hager
@James Hager It's always worth to try basic things first, good it worked out ! — arbaman

mayer @mayer 평판: 685.3k MacHale Enterprises 3.4k 1.1k 2.6k · Answer 1 · 2019-02-22T09:45:20-07:00

mayer @mayer

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게시일: 2019년 2월 22일

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First try a SMC-Reset - then an NVRAM-Reset

SMC - On the laptop's keyboard, hold down the Shift+Control+Option keys and the Power button at the same time. Release all keys and the power button at the same time – the little light on the MagSafe adapter may change colors briefly to indicate the SMC has reset. Boot your Mac as usual.

Resetting NVRAM

Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
Turn on your Mac.
Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
Hold these keys until the computer restarts and you hear the startup sound for a second time.

In or out of warranty you can get a free over the counter 'Apple Service Diagnostics' test and ask specifically for the VST (Video Systems Test)