ZD-915 Desoldering Station when on the blink

[Agent24]

Re: ZD-915 Desoldering Station when on the blink

I'm guessing the snubber capacitor is C6, and possibly C7 as well.

Can you tell us the part number of the switching IC? (Looks like they labeled it T1 - wtf?)

Would also help if you can remove the primary capacitor and take some more photos of the primary side area showing the top side traces and components, it's hard to see what goes where.

[sam_sam_sam]

Re: ZD-915 Desoldering Station when on the blink

Ok

Next weekend I might work on this board
I have order some more 2200uf@35 volt cap Which I do not have on hand
I only have 2200uf@25 volts ones on hand


The switching IC chip is one on the right hand side in the photo the one on the left hand side of the photo is the chip that controls the Heater on the gun
I am not sure what the one in the middle one dose yet I have not traced down that far yet I hope this helps

I bought another ZD-915 and recapped that the other day and works a lot better with the 2200uf@35 volt one
For one thing you can push the power button and push the button for the pump to be on and it will power on with no problems at all

With the 2200uf@25 volt cap I would not be able to do this I would have to wait 30 seconds before I could push the button for the pump to be on

The 2200uf @35 volt ones will fit on the board but lead spacing is a little different and the diameter of the leads are little larger than the 2200uf@25 volt ones and
the diameter of the can is also a little bigger so it is a tight fit

[sam_sam_sam]

Re: ZD-915 Desoldering Station when on the blink

Can you tell us the part number of the switching IC? (Looks like they labeled it T1 - wtf?)

It has one of these regulator in the power supply FSCQ1565RTYDTU Power Switch ICs - Power Distribution 15A/650V QRC Power Switch

https://cdn.badcaps-static.com/pdfs/...3d31708caa.pdf