Model A1418 / Late 2012 / 2.7 & 2.9 GHz Core i5 or 3.1 GHz Core i7 Processor

147 Questions View all

LED Backlight Dead. PSU replacement or Complete Screen Replace?

My backlight just died on my iMac, opened it up and there is is an Electrical burning smell.

I can see Mac Booting up if I use a torch - so guessing its the LED driver board is fried or potentially something in the PSU.

Question 1.

Could this just be the main PSU - does it have a separate feed for the LED Backlight ?

Question 2.

If not the PSU Is there a way to just replace only the faulty board or would I need to replace the whole LCD Panel ?

This happened just 3 months out of warranty arragh !!

Answered! View the answer I have this problem too

Is this a good question?

Score 1
Add a comment
Spread Fixmas Cheer
Get $12 off your purchase of $50 or more with code FIXMAS12
Spread Fixmas Cheer
Get $12 off your purchase of $50 or more with code FIXMAS12

1 Answer

Chosen Solution

Turns out it was a Capacitor on the Logic Board that was at fault and thankfully not the whole screen. Capacitor is being replaced

Was this answer helpful?

Score 2


Hello. I had the same problem as you.

as it solved?

you can tell me condenser was? thanks and regards


I don’t understand the previous comment.

“as it solved?” -> Is it solved?

“you can tell me condenser was?” ->

Can you tell me what capacitor it was?

Anyhow, I have the same questions.


Add a comment

Add your answer

Steve Francesco will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 1

All Time: 353