[sdiy] seek help on Jupiter 6 repair

[Anderson, Robert O]

>From: J. Larry Hendry [mailto:jlarryh at iquest.net]
>Here are the scans of the earlier versions of the voice boards.  Hopefully

Thanks everybody, I've hooked up the scope to IC20 4051 mux looking at each
oscillator output.  All twelve appear to have a heatbeat..  The frequencies
of nine of them are only about 1 Hz.  A couple are less than 1 Hz.  And one
is about 100Hz.  I guess the tuning procedure first does a low freq then
high freq calibration and I'm stuck on the low one.
Anyone know the passable freq spec?  I should try splitting the TX from two
voice boards to see if only one board has a high TX.  TX goes to plug MC4:7.


I'll also investigate the sample and holds.  Looks like the CEM3340 gets the
sum of FREQ+CV+Bend.  If the Bend voltage was off it could ruin the tune
procedure.
Bob A