Dear Old Crow,
I was wondering if you had an idea as to what I should do next. Thought the IC32 in my Polysix was going up, but appears not (see below). Perhaps there are corroded traces on the board just not readily visible?
Thanks for any insight. Your site is great, I cleaned my key contacts with its instruction.
- Ells
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> Ells,
> Be careful! If your Polysix will hold its presets when they are
> changed or the unit is turned off, I would say offhand that the SRAM
> chip is probably okay. You might be wasting your money on buying a
> new one. If you can't edit your sounds while in manual control, then
> there is something else wrong.
Thanks for the heads up, Jim! I was wondering about that myself which is why I posted. I can't edit in Manual mode either. Just have a kind of blip sound that can't be tweaked. The odd thing is is that the Polysix used to not hold patches properly until it warmed up for about 20 minutes and I COULD edit them at that time. That was last fall and it sounded very much like the Old Crow's description of a bad IC32 chip.
Then just recently it started retaining the patches right at boot up and they are all fine except now I ∗can't∗ edit them!
> My SRAM chip was indeed bad, but I was
> still able to use manual and tweak the sounds- I just couldn't save
> anything.
Yes, we had the opposite problem in a way.
> Even if your battery is only a couple of years old, you
> should start by making sure it hasn't leaked again on that board.
> Just because the battery will hold its voltage doesn't mean that its
> NOT leaking. Much weirdness that you describe can result...
Well I had the Varta replaced with a Lithium battery so there should not be a leakage problem. But perhaps it took a few years for some tiny bit of corrosion from the orignal battery finally is eating away at some trace??? (it was just starting to corrode but the Poly worked fine for a few years beginning at that time in '99 when the battery was changed)
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