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Tone Tweakers eBay | Reverb
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"Meticulously overhauled by the most critical professionals around and working perfectly, no excuses or surprises typical of most vintage sales these days.In addition to any repairs, we paid our tech to do the following work to this example. Some of these are things we typically do to our Xpanders during restoration and some were to fix an intermittent tuning problem this unit had when we bought it from our customer who we believe was the original owner:
Recapped power supply
Cleaned panel and chassis
Removed, cleaned, lubed memory switch
Cleaned all other switch contacts
Replaced hinge screws
Replaced 2 output jacks
Modified panel overlay to resolve typical sticking switches
Cleaned all IC sockets
Resoldered IC sockets for all EPROMS and all RAM
Replaced several IC sockets
Replaced all operating system IC chips with new ones, latest version (2 for voice board, 4 for CPU board)
Replaced battery
Reloaded patches
This process required 30 hours of highly skilled vintage tech labor plus parts. This one had tricky problems that ended up being due to bad IC sockets. The problems were intermittent - the unit would sometimes work fine but would sometimes malfunction. Those are often the hardest problems to fix because you have to get them to recur. Our typical burn in process after servicing items is long, but in this case, we ran it even longer and shook it up a bit after figuring out and fixing the problem, just to be absolutely sure it was working perfectly, and now it is, so it's ready to make its next owner very happy!"
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