Discussion about the Korg PolySix synthesizer

Hi,

 

Might I suggest, before you do anything else, check the continuity of the
tracks that form data bus D00-D07. Pay particular attention to the area
around IC30/31, especially if you have had a battery leak. In my experience,
if you think you might have a problem with the CPU, first remove it and
replace the 40 pin socket making sure that the underside is free from
battery electrolyte. Solder in a new socket and monitor the i/o bus P20-P27
for data activity with either a logic probe or scope. I would be surprised
if the CPU has failed, however, would not be surprised if you still have a
track disconnection!

 

Let us know how you get on....

 

Cheers,

Andy

 

From: PolySix@yahoogroups.com [mailto:PolySix@yahoogroups.com] On Behalf Of
mack_sass
Sent: 14 November 2009 01:03
To: PolySix@yahoogroups.com
Subject: [PolySix] Battery problems

 

  

I have been working off and on at fixing my battery issue for the past few
months...replacing parts etc.

I have not been able to get ANY sound from the poly six at all. In addition
to this, the controls are unresponsive and the lights are erratically on or
off. I suspect possible problems with the 8048 CPU. I have heard conflicting
reports on this, but with batter leak damage, shouldn't I expect to heard
SOMETHING when pressing keys?





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