Korg Poly800/EX800 Users

tyrone_topheavy wrote:
> Hey all.
> 
> I just rec'd a Poly 800 from "that auction place". In the past, I've 
> relaced the battery and uploaded the new sounds from my PC through 
> the tape jack, and I assumed this would be the problem with this one.
> 
> First, this is an early model, so no battery.
> 
> Second, I looked at the IC NJM2069D3004, and noticed it appeared to 
> be installed backwards, as it's "key" (the indentaion on the chip) 
> was opposite of all the other ICs on the board. So, I pulled it, and 
> observed some of the legs were missing or bent. Someones obviously 
> been here before me.

That's the filter IC.  If there's the fat "stub" of the leg left, you 
could try soldering a bit of resistor lead on as a "wooden leg" for it ;-)

The wire links you talk about may be repairs to damaged tracks on the 
board, possibly caused by the nicad leaking corrosive goo.

Gordon