Music turn down after a while... [resolved]

[davidnow]

Thank you Paul
I have replaced the TL431. Now Kreg are 1.4V and 1V (without 12AU7)
With 12AU7, voltages on MJE5731A are 217V and 218V.
Sounds good?

 

[Paul Birkeland]

Yes, those are within tolerance.

 

[davidnow]

I had the C4S board reconnected and all the voltages are now within specs, thank you very much!
David

 

[davidnow]

To finish the story i think i figured out what was wrong with my Eros, i mean with the first problem : music stops after a while.
I manage to make it occur with Eros upside down. No voltage on the IEC power entry module. When i turned a bit the chassis, the diodes began to glow... It appears there was a bad connection, probably with the fuse. I changed the IEC and now i can listen to music stressless!
Thank you again for your help
David