Model A1225 / Early 2009 / 2.66, 2.93, or 3.06 GHz Core 2 Duo processor

167 个问题 查看全部

Intel 24" iMac 2.66 won't power on!

Hi,

I own a early 2009 Intel 24" Alu iMac 2.66ghz. I was using it the other day and suddenly it went dead. I tried turning it back on - nothing happened. So I changed the power cord and tried it in another room - nothing.

So I found the guide on here and swapped the power supply with a new unit. It didn't fix the problem :(

I was thinking it might be the logic board but surely it would do something if it was this? I get nothing, no fans,noise, nothing.

Any other suggestions on what I could check? Oh, and I did try the SMU reset and reseating the RAM...

PS. I've no applecare.

Many thanks!!

Martin

已回答! View the answer 我也有这个问题

这是一个好问题吗?

按维修分数 2
添加一条评论
传播 Fixmas 欢乐
Get $12 off your purchase of $50 or more with code FIXMAS12
传播 Fixmas 欢乐
Get $12 off your purchase of $50 or more with code FIXMAS12

4个回答

已选择的解决方案

Look

Mac not powering up when I hit power button? - thanks to Mayer.

这个答案有帮助吗?

按维修分数 1

评论:

I didn't know that there were diagostic LED's on the Intel 24" Alu 2.66ghz iMac??

Ok, here we go, power cord is plugged in,turned on at wall.

From the left

1. Green light on

2. Off

3. Doesn't seem like there's an LED here anyway

4. Off

This is with the NEW power supply installed, yet it still won't turn on.

Cheers

Martin

添加一条评论
最有帮助的答案

#2 light off

  1. When the computer is turned off or the power supply is working incorrectly
  2. I would say you got a bad power supply

这个答案有帮助吗?

按维修分数 2

评论:

It's a brand new one..I think I would be pretty unlucky to have 2 bad power supplies.

I'm reading this right out of Apple manual. Are you sure it's turned on? LED #1 will be on with it just plugged in.

Here is a link to mayers original post with all four lights. From your description I would say its either not turned on or you have a bad power supply. +

LED power supply and logic board tests

添加一条评论

if the first led lights ON with GREEN, meaning the power supply(PS) is good, when turning the switch ON, second LED must lit... if its not light it means that the logic board is not receiving any voltages at all, check your SWITCH and the swicth connector to logic board, check also the connection of the PS going to logic board.

这个答案有帮助吗?

按维修分数 0

评论:

The first light only means it is getting trickle voltage, not that it's good. If the second light is on then the power supply is good.

添加一条评论

I know this is an old topic, but I am having the same issue. At first, I wasn’t getting any diagnostic LED lights at all. I purchased and changed out the power supply and now I get LED#1 on when plugged in. Progress? Upon pressing the power button, nothing happens. No other LEDs come on, no sounds/fans. I went ahead and purchased another logic board, but the same thing is happening with this one too.

I have tested the power switch and it seems to be working. I get continuity between the wires when pushing the button.

My thoughts are that the power supply I purchased is bad, though I don’t know how to test it to verify. Does anyone know of a way to test it (voltage pinout) or have any other idea?

Also, do I need to completely reassemble the system to test it or should I be able to turn it on even without the LCD attached or logic board screws put back in just to see if it does turn on? Not sure if not having all screws back in would prevent it from powering on.

Thanks for the help.

the_buzz_man

这个答案有帮助吗?

按维修分数 0
添加一条评论

添加你的答案

Martin 将永远感激不已
浏览统计数据:

过去的24小时: 0

过去的7天: 3

过去的30天: 22

总计 3,484