Current situation -
Trident powers up correctly, String section works OK except for
unable to click the 16' and 8' on/off. Besides all section works.
Brass section doesn't play any sound. Synth section plays the saw
waveform ok, PM doesn't play sound, and PWN plays a what sounds like
a contineous "ta-ta-ta-ta-ta". VCF sectiob doesn't make any change
to sound.
What I did so far -
1. changes battery to another NiCAD battery of 3.6v - don't know how
much Ah it is (can this be the problem ?)
2. Retraced two black traces on the computer/battery board (I can't
see any corroded traces / parts other than those)
3. Replaced all 4xxx ICs in the synth board as I found a staple
between the legs of one of them.
4. Cleaned the corrosion of a few traces on the oscillator board,
these are the traces that are placed under the coputer board, right
under the bettry position.
Any directions / idea ?
Thanks
--- In PolySix@yahoogroups.com, "gil_we" <gil_we@y...> wrote:
>
> Thanks !!
>
> I made a search here and found that by the Polysix service manual,
> VR1 on the computer board is supposted to be responable for the
reset.
>
> I changed VR1 setting on the Trident and now the leds/banks seems
to
> work OK ! i.e they do not lite up contantly as before, but acts
what
> seems to be normally (I can select presets / write)
>
> Still I find that the Synth section plays hiss and noise (no
sound)
> as well as the brass section.
>
> The Strings section seems to function (beautiful sound !) as well
as
> the effects (flanger, vibrato, ensemble, bowing, joystick)
>
> The sting section even sounds quite tuned (surprisingly...)
>
> So now the main problem is the misfunction / silent of the brass
and
> synth section.
>
> I'll retrace the other what-seems-to-be bad traces on the other
board
> (voice?) and see if that helps.
>
> Any other ideas at the meantime ?
>
> Thanks !!
>
>
>
>
>
>
> --- In PolySix@yahoogroups.com, "Chromatest J. Pantsmaker"
> <chromatest@g...> wrote:
> >
> > ----- Original Message -----
> > From: gil_we <gil_we@y...>
> >
> > > Also, I can see a few partially black traces on the KLM-379B
> board,
> > > right at the place that is below the battery.
> >
> > I'd start here. Get a nice voltmeter and visually and
mechanically
> trace all of the darkened traces. I bet a couple of those are
> hosed...