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Model A1224 / Mid 2007 및 Early 2008 / 2, 2.4, 또는 2.66 GHz Core 2 Duo 프로세서

549 질문 전체 보기

Won't Turn On Power UP

I can see the Diagnostic Leds, and

Number 1 : It's On when connect the AC Cable

When I push the start button the Leds 2 and 3 turn ON

No 2: ON

No 3: ON

But the LED 4 do not. Still OFF. And the Fans not working, some advice about it?

The SMC was reset and nothing happens.

답변되었습니다! 답변 보기 저도 같은 문제를 겪고 있습니다

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답변 2개

선택된 답변

See this

previous post from Mayer

Remember to return and mark accepted the answer that best solves your problem.

Good luck,

N

해당 답변은 도움이 되었습니까?

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good advice in that post +

+ excellent source

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LED #4

Indicates that the computer and the LCD display panel are communicating. This LED will be ON when the computer is turned on and video signal is being generated. If the LED is ON and there is no image on the LCD display panel, the LCD display panel or inverter might be installed incorrectly or need replacement.

해당 답변은 도움이 되었습니까?

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