820-02009 - No S2 line

Palhano

Member
iMac won't turn on! On the test button, LED 1 lights up and LED 2 blinks.

C7801 was shorted, I replaced it and the problem was solved. But the iMac still won't turn on.

PPBus_aon -16v
PP3v8_aon - 3.8
PP1v8_aon - 1.8

I didn't find any shorts on the secondary lines!

In diode mode, L8120 reads 0.090. But I don't have another board or references to check.

Any suggestions?
 
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