Rhodes Chroma Polaris

"We have memory Captain!"

The diode was the problem. I put in a new one and everything works great.

I bought the Polaris in 1990 for $100. Eventually it made it's way to the closet until recently I decided to bring it back to life with the new membrane panels from Paul.

I decided to rebuild the power supply and replace all the caps. I found I needed a new DAC, some LED, ribbon connectors and then that pesky diode. Now all's I have left to do is pretty up the wood end pieces but I think I am going to play my Polaris for a while first!

The Polaris has a great rich analog sound and a smooth,quiet keyboard that is wonderful to play. Paul, the team made a great product back in the day.

Thanks to everyone for the help in getting it going. I will reciprocate with a couple of posts stating where I got a few of the replacement parts - perhaps it will save someone else some time. 

Brett



--- In chromapolaris@yahoogroups.com, "stanleykenton59" <stanleykenton59@...> wrote:
>
> I measured the current flow both directions and there was no conduction either way. I noticed the glass casing was broken and the diode just basically broke in half. That settled that. I am just waiting for a new one to come.
> Thanks everyone.
> Brett
> 
> --- In chromapolaris@yahoogroups.com, "Paul D. DeRocco"  wrote:
> >
> > > From: stanleykenton59
> > > 
> > > I looked online and the IN34A germanium diode is easy to 
> > > find. So I will get one and replace it. 
> > > Thank you both for the advice.
> > > Once I change out the diode, I report back.Hope that is all it is!
> > 
> > You can save yourself the trouble if it's not. With the power off, measure
> > the voltage on both sides of the diode. If the difference is more than, oh,
> > a couple hundred millivolts, it's broken. If not, then it's some other
> > problem, perhaps a transient when you turn the power on or off.
> > 
> > -- 
> > 
> > Ciao,               Paul D. DeRocco
> > Paul                mailto:pderocco@
> >
>