2001 iMac G3 Won't Power On

[Adderthorn]

Recently inherited a 600MHz Snow iMac G3. Copyright date of 2002 on the bottom. When I got it home, I powered it up just fine. Took out the HDD to image it and wipe it and put it back in and now it no longer powers on. When I plug it in cold and press power I hear a pop from the speakers and that's it. Pushing the power button again or any other button does nothing.

I know this seems like it might be analog board related, but it was literally just working. Could I have distrubed it enough to kill the analog board?

 

[Nixontheknight]

has it been recapped? this could be caused by faulty capacitors

 

[Adderthorn]

has it been recapped? this could be caused by faulty capacitors

That was what I was afraid of. I doubt it has been. I took it apart and there is quite a lot of caps on this thing. Anyone have a list? if not I will try making my own.

 

[Phipli]

That was what I was afraid of. I doubt it has been. I took it apart and there is quite a lot of caps on this thing. Anyone have a list? if not I will try making my own.

Given it worked before you dismantled it, and not after. I'd assume it was related to that.

Try dismantling it again and re assemble it, checking that everything is properly seated, no shorts, no trapped wires.

 

[Adderthorn]

Given it worked before you dismantled it, and not after. I'd assume it was related to that.

Try dismantling it again and re assemble it, checking that everything is properly seated, no shorts, no trapped wires.

Put it back together and still doing the same thing. Unfortunately the disassembly process caused a lot of the inner support plastics to break and I no longer believe it will fit together again.

One more note - I've disconnected the speakers to see if I hear anything else and there seems to be a faint "burp" noise coming from the flyback (or something near it). This happens when a. the power has been unplugged for a few moments, b. I plug it in, and c. I press power. Subsequent presses do nothing until I start from step a.