Jesus..... first make a patch with White noise....... If the white noise works on all voices properly it wont be in the filter.....
If not a filter issue, secondly take out the whitenoise and add the squarewave without pwm and the saw wave...... remove sine wave altogether from VCA section....
If notes are dissapearing here, check the capacitor or traces travelling from the VCO chip out to the waveshaper chip on the voice card that has no sound... I think you may have a break there... a dead cap would allow some sound thru, but very weak.... a break in a trace may cut everything altogether...... FYI... sin wave and noise bypass the wave shape chip, so that is how you tell if it is the waveshaper, or the Filter itself....
-----Original Message-----
From: jesus <
gretchen.lipke@...>
To:
yamahacs80@yahoogroups.comDate: 06/16/12 12:09
Subject: [POSSIBLE SPAM] [yamahacs80] MY CS-80 IS SICK. HELP!!
Hi, group,
My beautiful CS-80 has a minor issue: One of the upper-row voices seems to only have the sine wave suboscillator, but no VCO-VCF in it. This is obviously more noticeable if I silence the bottom row, and if I mix both rows equally it becomes barely perceptible, kinda' like a muffled note caused by hitting the key too slowly.
It is a barely-noticeable "blemish", but I hate it.
Anybody want to tackle this one?
I have tried contacting Old Crow using the email from his CS80 site, but it bounces back.
Hope you guys can come up with a solution.
Thanks!!!
JDiaz
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