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Greetings all... I have a 1980's Sunn powered PA model SR-6100. Nice little 6 channel unit. The channels stopped working one after another sequentially. That is...they didn't fail all at once. First channel 1, then 2, etc. in sequence over the course of an evening. Before I tear into it, any thoughts on what may be the cause of such a failure? It's nice but it's old and may not be worth the headache to fix. Any thoughts would be appreciated! Thanks!
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Most common failures:
1. Normally closed switching jacks on the back panel (any that say "in").
2. Inter-connect cables between circuit boards.
3. Broken solder joints.
4. Bad potentiometers.Support for Fender, Laney, Marshall, Mesa, VOX and many more. https://jonsnell.co.uk
If you can't fix it, I probably can. -
Was it sitting unused for a long time before this happened, or in regular use?Originally posted by Enzo
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