57Strat777
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- Joined
- Mar 7, 2016
- Messages
- 11
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I have a first version of the Mark IV combo I bought new around 1991. The factory foot switch recently stopped working reliably. The lights on the footswitch randomly blink as if there is a short and it won't change channels when I click the foot switches. The amp will manually change channels just fine when using the channel select knob on the back of the amp. Is it simple to fix this, or do I need to send it back to Mesa Boogie?