Velleman K8004 Kit

Hello Velleman,

I soldered the K8004 Kit, but it doesn´t seem to work. I checked every soldering point and the resistors as far as possible.
I used an external voltage source as well as the internal reference voltage, but the controller passes the Input Voltage directly to the Output Connector. There ist no regulation at all. It does not react on any potentiometer input.

Do you have any hints for further toubleshooting? How can I check the IC or the Diodes?

Thanks for your help

-> Is there a chance that your Tech Support can check the module? I bought it in Germany from Conrad Electronics.

You can return your kit to Conrad or you can send it
directly to us (transportation cost!):

Velleman NV
attn. KIT Repair dept.
Legen Heirweg 33
9890 Gavere

Thank you for your help! :smiley:
I will send it directly to you - don´t know how long Conrad will take.