See if fuse F1 is blown. Or rather, see if that should be a fuse. It looks like someone replaced it with a resistor.

wiretap wrote on 2023-05-31, 16:24:

See if fuse F1 is blown.

I see only C1, JC1 (jumper) and then two "green" L5 and J1
I see marking F1, but no part.
Probably you mean with F1 - "my part" L5.
If it fuse, then infinity resistance makes sense! Blown.
For what current do I need a new fuse ?

And what can be J1 or part below fuse? They look very similar... Just distance between rings is little bit different.

It looks like someone replaced it with a resistor.

I would say no. The soldering looked as original. Also oxidated.

You need 2 of this: https://www.ebay.com/itm/175117812292?_trkpar … 7Cclp%3A2047675 , fixed the link with one that has the color coding so you will understand better. The actual value is in your case 10 uh with 10% tolerance, 1/2 w should be fine.

bogdanpaulb wrote on 2023-05-31, 16:38:

You need 2 of this: ....

Thanks! Sounds good.
Will test after vacation

Looks like there are at least two hardware variants of this board. The earlier rev has the fuse and I was looking at the schematics for that. Yours has two ferrite cores. The poster above linked the correct parts.

Thanks a lot. I have soldered proposed 2 inductors and everything works fine!