Induction Heating

[oliv25]

Hello, my name is Olivier and I have to do some soldering tests on a 64/900 power cube but
the problem is that it is faulty A6, it worked fine a few years ago.
We took it out to test for a customer because the parts to be soldered are deformed
too much in our brazing oven.
When switching on, no display, a condo was out of order on the small plate on the front with the buttons
+ and -, it's a 220µf 16V, I replaced it, it lit up and communicates with the slave box.
I also had the A4 fault but it no longer appears for the moment.
I am new to electronics, a multimeter to take some measurements, it is on this risk
to be complicated to find the problem.
However, has anyone ever encountered the A6 fault and how to solve it if there is
has resolution?

[oliv25]

[oliv25]

[Anders Mikkelsen]

I would start with measuring the power transistors and the diodes, to see if they are okay. If you have a multimeter, you can measure the voltage drop across the diodes and MOSFETs using the diode check function. I can try to make some reference measurements on one of my own units later, for comparison.

Where in France are you located? I am in Ain, and if you are nearby I could maybe offer some assistance.

[oliv25]

Hello and thank you for the reply.
I am in Etupes in the doubs (25) next to Sochaux and Montbéliard.
Stupid question, where are the diodes and transistors and mofset?