Bottlehead Kits > Eros Phono

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

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davidnow:
Hi,
The Eros2 is clearly the best phono preamp i had the chance to listen to. Thank you very much for offering this gem.
My vinyl collection is in a country house so I don’t listen to it very often, let’s say few hours a week every two months.
I am back in the country house now and listened to some favorite vinyl albums. But after an hour or so, the Eros 2 turned down, no more music. I switched it off and waited for it to get cold. When it is cold, it could play again, but stopped again after an hour...
I would appreciate any help to cure this problem...
Best regards
David

Paul Birkeland:
You'll need to post your voltages when the Eros is on but not able to play music.  There's one component in the Eros that is mounted to a heatsink that will turn itself off if it gets too hot, and that's the 1085 regulator.  Make sure it's tightly mounted to the heatsink.  If you don't have the rubber feet on your wood base, that could also be enough to overheat things.

davidnow:
Thank you Paul, my Eros is mounted on the rubber feet. i will check the regulators and post voltages when i can check them.
Best regards
David

davidnow:
Hi,
i had the opportunity to check the voltage at last... But i could not!
When the Eros turns down, i put it upside down to check voltages but i have not enough time to do so, i can see the diodes and the tubes glowing again.
So when the music turns down, the tubes and the diodes (the four under the 12AU7 and the eight under the 6922) stop glowing, and when i turn the Eros upside down, they all glow again after few seconds...
I should also tell that the 1085 heatsink is not warm at all.
Maybe i should try to change this 1085...
Kind regards
David

Paul Birkeland:
You very likely have a loose connection in your Eros.  When you are moving it, it's moving the loose connection and bringing things back to life.

Definitely do not just guess that the 1085 is bad and replace it.  This may just cause more problems.

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