Hi, I also sent an email and I hope the community can help me.

I have a problem with my Muzishare X7: when I calibrate the bias with the appropriate trimmers, after a while it goes away, tending to decrease but sometimes it also increases dangerously.

I don't know what it could be: maybe the adjustment potentiometers that have already worn out....but it seems strange to me that after three years and very little use of the same, these have been ruined.

I could change them using the guide you made on this topic, but if that wasn't the defect I would always be back to square one.

So I thank you for the help you can give me

Thank you very much and best regards.

Salvatore Tosto