The fan starts to spin, but then all the leds go out, and the machine

Question

iMac G5 20" Model A1145

2.1 GHz G5 processor

77вопросов Показать все

Randy Brandon @randybrandon

Репутация: 1

1

Опубликовано: 4 янв 2013 г.

Опции

The fan starts to spin, but then all the leds go out, and the machine

I am currently trying to diagnose the same symptoms on a 24 inch Imac (2006) model. ANd the #1 light stays on until I hit the on switch, then the # 2 light flickers, and the machine flatlines? If I hold the on swith in when I plug it in, then the #1,2, & 3 leds flash, and the fan starts to spin, but then all the leds go out, and the machine flatlines again? Anybody had this experience?? any assistance will help. Thanks, Randy

Ответ на этот вопрос У меня та же проблема

Это хороший вопрос?

Да Нет

Оценка 0

Добавить комментарий

2 Ответов

LikeARabbit @likearabbit Репутация: 3,8к Macalope 9 11 3 · Answer 1 · 2013-01-04T10:54:18-07:00

Наиболее полезный ответ

LikeARabbit @likearabbit

Репутация: 3,8к

Macalope

9

11

3

Опубликовано: 4 янв 2013 г.

Опции

You could try component isolation (disconnect hard drive, super drive, etc one by one) to see if any other components have an effect but with what you're describing my gut says the power supply is to blame. LED 1 indicates that the power supply is providing trickle power, this should be on as long as the machine is plugged in to power. LED 2 lights when the power button is pressed and the power is routed through the logic board. It sounds to me like the power supply is still providing trickle power but is failing when it has to provide full power.

Hope that helps!

Был ли этот ответ полезен?

Да Нет

Оценка 1

1 Комментарий:

Check the logic board for expanded or leaking capacitors. There should be about 24 of them.

4 янв 2013 г. из mayer

Добавить комментарий