Electronics > Beginners
Soldering station Quicko T12-943 no power
<< < (3/7) > >>
Specmaster:
Just maybe, it's an issue with the 943 controller board?  When I got my second T12, I decided to try out another controller board so I purchased on from Banggood https://www.banggood.com/T12-Digital-Soldering-Station-OLED-Display-Control-Board-STC-Controller-Kit-p-1140746.html?rmmds=myorder&cur_warehouse=CN and that one after a few weeks suddenly developed a fault that caused the tips all to glow cherry red. After I purchased the replacement controller from Aliexpress, the one as used on the Quicko T12-952 and fitted it I've had zero problems with either of them. :-+
floobydust:
Gotta hate that.
22P04 -40V -22A (DPAK)
TPC8107 -30V -13A (8 pin) no margin for short circuits.
 
It's tough, a real Hakko FX-951 is $400 CAD at Digikey and the alternatives from guangdong are a PITA.

I see a bunch of the 24VDC PSU's used in the knock-off T12 stations have added 1k dummy load resistors here and there.
The PSU's are not the greatest and Vout spikes up when there is no heater load. Some don't even use TL431.
bd139:
Yep. SOA is exceeded pretty quick on any MOSFET at Rds(on) of 0.2 ohms. Why I call them MOS-PHUTs. I've blown up tens of IRF510's trying to use them as RF PAs. They go with one hell of a crack.

I bought a nice iron made in China in the end. A Metcal PS900  :-DD
Specmaster:
Guys, I have updated my original post a couple of posts above.
Haggis McHaggis:
@draza
That's a pity, i feel for you. I hope there is no immanent problem with this controller board :(

Do you have any news on this?

Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod