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Working on this Line 6 Low Down and traced the issue down to an overheating 3.3v regulator. This overheated reg. seems to be caused by the DSP chip overheating. I can cool the chip off and the 3.3v returns. Curious if any of you have ran into this and if it is a common issue? I really don't want to attempt to resolder this chip without a proper reflow station. I think I may just install a little fan to help keep it cool but not sure if it will completely solve the problem.
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Hi! I have the same problem! Have you found a solution? -
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Thanks you! I'll try, but I also want to install a radiator on the chip. I have a matching size from the old motherboard. Do you think it's worth it?Originally posted by tdlunsfo View PostComment
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If it is your amp and you need the reliability then go for it. I was repairing for a client and since this amp isn't worth a lot, I was limited in what I could do. To me, the fan doesn't fix the issue and only deals with the symptom but it was quick and effective and likely will give the amp a few more years. The client was good with that.Originally posted by Tymbler View PostComment
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and one more question, if I buy a new dsp does it require programming or not?Comment
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Not sure on that one.Comment
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It's programmed part so you'd have to get it from Yamaha. I've seen baked DSP's on these before, not sure why it happens. Maybe a power up sequence thing.Originally posted by Tymbler View PostExperience is something you get, just after you really needed it.Comment
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Are you referring to U14? I've seen those overheat before, they are not pre-programmed. It's a CODEC or Analog-Digital converter AK4528.
https://www.digikey.ca/product-detai...3-1-ND/3679887Comment
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No, U12 is the DSP.Originally posted by dmeek View PostExperience is something you get, just after you really needed it.Comment
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