bobgardner Posted June 12, 2016 Share Posted June 12, 2016 My bud has a Spider 75. He says 'fix it'. When I turn it on, and plug a guitar cord in, it sounds like it is connecting to a modem... crazy tones. I'm guessing its the darn digital stuff jumping into the analog. So thinks me The Old Dude, I'll just try and isolate prob to preamp or power amp. Imagine my surprise when the back doesnt reveal any preamp out or power amp in jacks. Anyone else ever heard this weird noise? Amp doesnt work. I held in button A to try to reset. Any way to operate in degraded mode (computer held in reset, no effects, just jack thru preamp to amp)?. At least that would let you finish the gig with a chorus pedal or something. Do all the factory service dudes have 4 year EE degrees? I do. Send me the link to the factory manual. If I find out whats wrong with this booger, I'll tell yall. Thanks. Quote Link to comment Share on other sites More sharing options...
fflbrgst Posted June 13, 2016 Share Posted June 13, 2016 Plug in a set of headphones to hear just the preamp section. To test the amplifier section, plug an MP3 player into the MP3 input on the back. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted June 13, 2016 Share Posted June 13, 2016 What sort of noise? How is it jumping around? Recommend registering the amp in your account, then log a support ticket. fflbrgt suggestion is a good one. Use the patch "Like Buttah", it's a clean setting, so whatever anomaly is there won't get masked by effects. Quote Link to comment Share on other sites More sharing options...
bobgardner Posted June 14, 2016 Author Share Posted June 14, 2016 Top line in original message... "it sounds like a modem connecting" warbling 1-2K square waves, freq changes when I touch tip of cord. No knobs operate. How do you reset or reflash or disable the digital stuff? I haven't taken the amp out of the case yet... was waiting for a forum reply, and I thanks you guys for replying. Quote Link to comment Share on other sites More sharing options...
psarkissian Posted June 14, 2016 Share Posted June 14, 2016 Register the amp in your account and log a ticket with customer support, get a return authorization, have the authorized service center contact me. Don't void the warranty by going inside of it yourself. Quote Link to comment Share on other sites More sharing options...
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