Author Topic: ZD-915 desoldering station: blown transistor on power supply  (Read 1452 times)

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Offline THM60Topic starter

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ZD-915 desoldering station: blown transistor on power supply
« on: September 12, 2021, 07:35:57 am »
Hi, first post here and it's for requiring your help  :-\

I stupidly blew a regulator on my ZD-915 power supply by inverting wires when connecting the output to a DC-DC converter. I had replaced the cheesy "voltage dropping" device installed by the manufacturerwith a nice adjustable converter and testing went well, now motor and fan are receiving the voltage they are designed for,i.e. 12V.

Unfortunately, when rewiring the thing I inadvertdly inverted positive and negative wires on the DC-DC converter's input. Of course when I powered it, regulator T1 was instantly blasted, so badly that I can't even read what was written on it (see photo).

Here's my question : what part number shall I order to repair the PS ?

Thanks !
 

Offline DavidAlfa

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Re: ZD-915 desoldering station: blown transistor on power supply
« Reply #1 on: September 12, 2021, 05:17:15 pm »
Here they repaired it with a FSCQ1265RT

http://monitor.espec.ws/section8/topic204373.html
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Offline THM60Topic starter

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Re: ZD-915 desoldering station: blown transistor on power supply
« Reply #2 on: September 13, 2021, 05:53:52 am »
Hi,

Thank you.

I replaced the blown Fairchild FSCQ0565. Desoldering station is repaired and working like a charm.

Picture of the newly installed DC-DC converter, motor and fan now working with correct voltage.

 


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