[help] iMac 21 2011 1 led blink

[phantom]

Hi to all, I have an iMac 21 2011

Customer said to change the power button because it works only few times

I’ve changed it and changed also the solder paste on cpu and gpu but now it doesn’t boot

I have only led 1 blinking

I’m very angry with myself because of not having tested it before chaning the button..Any help?

 

[2informaticos]

What is exact 820-xxxx code of your board?

 

[phantom]

Solved the problem: it was the power supply…

But now i have fans at top speed.

I’ve done a jumper here but no luck

IMG-7700 hosted at ImgBB

Image IMG-7700 hosted in ImgBB

ibb.co

 

[phantom]

This is the error

IMG-7703 hosted at ImgBB

Image IMG-7703 hosted in ImgBB

ibb.co

 

[2informaticos]

That is temperature error, but I can't find which component related.
Maybe caused by power supply, as it has embedded temp sensor probably.

 

[phantom]

Whaaat?

 

[2informaticos]

May also be caused by LCD temp sensor, if you forgot to connect it.