Love this forum, really appreciate the wealth of information I have gained from being a member for just the short time I have been on........I'm turning to all you experienced folks for a problem I currently am having. I have a Pioneer SX-990 receiver with no left channel output, blows the 2 amp left channel fuse as soon as it is turned on. Actually, all the output transistors are checking good, emitter resistors, drivers as well. Only thing I can find wrong so far is that the 50 ohm trimmer pot for the left side is shorted, so I was wondering if you know of any suitable source and replacement for it, as well as the other trimmer on the same channel which is a 30k pot. Started looking at Digi-Key and Mouser, but have come up blank for replacement so far. Any suggestions would be greatly appreciated.