Help to identify components, antec true power 430

[Quaddro]

Hello everyone..

Tonight i've got an old antec true power psu.
After a brief observation, i found a burn mark on resistor.
Try to replace it, then it got hot with very quick.

So i try to check and replace components surround it.
When i was try to pull of the one of zener diode (of course after desolder it), it's slip from my tweezers, and drop to the box, (well, my room is soo messy).
I can't find it, since this component is so small.

So, anyone can help me to identity the zener diode..? (d24 mark on the board)

Thanks alot.

[Stefan Payne]

Re: Help to identify components, antec true power 430

D means Diode.
The question remains what Diode....

And remember that this PSU is around 15 Years old...

[eccerr0r]

Re: Help to identify components, antec true power 430

Picture of the back side of the board?

No guarantees, but maybe someone can make a guess...

Or if even luckier someone has either the same PSU opened up or have drawn a schematic...

[Quaddro]

Re: Help to identify components, antec true power 430

Picture of the back side of the board?

No guarantees, but maybe someone can make a guess...

Or if even luckier someone has either the same PSU opened up or have drawn a schematic...

OK i'll try to draw the schematic..
Hopefully we can guess the missing component

[momaka]

Re: Help to identify components, antec true power 430

Can you provide us a picture of the solder side? That way, I might be able to trace it.

The missing diode is not a Zener, but rather looks like a regular diode. Those diodes in that area of the output side of the PSU are typically for -5V or -12V rail rectification or 3.3V rail regulation.

The fact that you have components burning up on the secondary side means you probably have something shorted. I suggest desoldering those ceramic caps and checking them for leakage and proper capacitance.