Have you tried holding down the Write button when you turn it on to enter diagnostics mode?
--- In korgpolyex@yahoogroups.com, "eshalsall" <eshalsall@...> wrote:
>
> I noticed another thing when I turn it on. Through the headphone output I can hear the filter cutoff slowly sweep from closed to open and the noise generator is on.
>
> --- In korgpolyex@yahoogroups.com, "eshalsall" <eshalsall@> wrote:
> >
> > I just recently installed the HAWK 800 mod in my Poly 800 MK1. When I turn it on the display flashes "88 88 88" and doesn't change to the "HA-800" as said that it should in the manual. I tried to test all of my work after this happened. I replaced the two original chips, desoldered the cpu write jumper and the synth worked fine with the original configuration. I checked continuity on the ribbon connectors. I also checked every solder joint on the hawk board and that the chips were in the right place.
> >
> > I have the boot ROM v. 1.95
> >
> > Please help
> >
> > Thanks,
> >
> > Ethan
> >
>