Hiss/Static in right channel [resolved]

[rockbox]

I have a SEX 2.1 kit that I bought 7-8 years ago. It has developed hiss/static in the right channel. Any ideas on how to troubleshoot. I switched the tube to check if one of the tubes were going bad the the static is still in the same channel.


Since I bought the kit so long ago, I do not have the manual to check the resistances. Is there a place were I can download the manual?

 

[rockbox]

I think I figured it. I think the sockets were dirty or corroded, because after removing the tube and reseating it a couple of times, the static went away.