WLX-936D Solder Station schematic

[jdev99]

I bought one of these in 2015 for £28 and was quite happy with it until recently.
It started giving all weird problems, temperature fluctuating, flashing display, dead display etc.
So I decided to take it apart to see if I can find the problem and maybe fix it.
While it was apart, I decided to redraw the schematic (as accurate as I can)
To my surprise it actually uses an Atmega8a-AU.

This is the result:  (See attachments)

In the end I decided just to "upgrade" it to this :
https://www.hackster.io/sfrwmaker/soldering-iron-controller-for-hakko-907-v-2-fc75d7

[Nusa]

Gotta love how whoever assembled that completely ignored the strain relief holes for 9V and 24V wires.

[stj]

you should look at these projects if you really want to use that shit iron.

the original
https://debugginglab.wordpress.com/2014/10/30/soldering-station/

the improved version.
https://github.com/manolena/DIY-SMD-Soldering-Station