Re: Help for repairing Delta PSU (DPS-200PB-189A)

This is back of the board.

With green circles marked where was the blown resistor.

Can I check for shorts without desoldering all those mosfets from the shorted heatsink? All components are very crammed inside, and white glue everywhere....

Hi there.

Due to a mistake, while testing the termistor for variable voltage at the cooling fan with my hot air station, I've managed to make a short between the ground and the heatsink (the one where the mosfets are screwed) on a Delta PSU (DPS-200PB-189A).

As a result the R3 resistor was blown away.

After I've raised my wall fuse back and restored power outlet, the PSU no longer works.

I don't know what else is damaged, but visual inspection shows only the R3 resistor being the one with problem, so I would like to swap this first and see if...

Re: New Members - please post your introductions here

Hello. Doing this because I'm desperate to post.