Discussion about the Korg PolySix synthesizer

I use the HM6514 all the time for repairs and new boards alike.  They 
are $3 ea from Jameco.

  However, if the programming controls 'lock up' it still sounds like the 
CPU (IC22) is crashing due to either a bad connection or the part itself 
is failing.

Crow
/**/

On Wed, 28 Jul 2004, toorglick wrote:

> When on, the 5514 gives me around 3.9 volts and off it reads about 1.9.  
> Funny, though, that section looks clean and even the legs look good
> (shiny metal).  I only did a quick test the other night and haven't
> removed 367 (again) to check for more continuity problems.
> 
> I was looking for replacements online but I mostly got a lot of links to
> video-game repair.  Here is a list of comparable replacements as far as
> I can determine:
> 
> Toshiba 5514
> Harris HM6514, National 6514, Fujitsu 6514
> NEC 444, RCA 5114, Hitachi 4334
> 
> Is it safe to assume any one of these can replace the 5514?  
> 
> The patch and bank section of the programming controls lock up on me 
> so I'm not able to test whether I can load in data.
> 
> Thanks.