Problem with preamp..need direction.


I have a cheap audcom 2 tube/remote pre w/auricaps.
Im getting music out of the L channel with the volume all the way down.It does it with the tuner,sacd player and phono.The R channel is quiet.
If there is no source of music (turn the tuner off) I get a hum from the L channel.
I have switched the tubes around,installed different tubes.No fix.

I switched the speaker cables in back of the amp and then the problem goes to the R channel.
I switched the I.C.'s in back of the amp....then the preamp and the R channel stays affected.
I guess this narrows it down to the preamp.
My question is "NOW WHAT"! I have soldering skills but thats where my tech.ability/knowledge ends.
I'd like to be able to do a DIY fix if possible.
Thanks for any help.
david99

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