crumar / roland questions.

BonoVox9 at aol.com BonoVox9 at aol.com
Wed Sep 27 14:11:12 CEST 2000


In a message dated 9/27/00 6:45:31 AM Central Daylight Time, 
goddard.duncan at mtvne.com writes:

<< I've got one of these too; again, under-rated- the strings are wonderfully
 gritty and cheap-sounding, and the thing is built like a tank. I had to
 replace most of the faders (it had been in a garage) but the rear tuner
 gives no trouble. I reckon it probably is a dead spot on the pot; the
 symptoms may be a little different than you'd expect because of how the
 thing works. it's more like an organ than a synth- maybe someone else on the
 list has seen the schematics or knows something about the design, but I have
 a feeling that there's a master oscillator and lots of dividing circuits, at
 least one for each note. this would explain the notchiness of the tuning
 adjustment, especially if the pot's got a dead spot. >>

What did you replace the faders with? The faders that are in it are made by 
Piher. Did you replace them with another brand? I would really, very much so 
like to replace most of the faders in my performer. Mine was stored in an 
attic near Chicago IL for about 15 years. It suffered summers and winters and 
the faders are really bad. 

I've had a few people help me out with the performer, I got one and the 
string section wasn't working right and it turned out that the ensemble 
circuit wasn't getting power and someone basically troubleshooted and walked 
me through the repair. It was invaluable, and a great experience. I have 
three problems with mine still. The tuning pot, the faders and my brass 
section makes a constant, irregular static noise. The noise isn't present 
when you hear the brass through the SIGNAL output. I'm assuming the signal 
output is the brass section, completly bypassing the filters and attack and 
sustain. It's really loud, bold and clean. But, when I use the normal MAIN or 
BRASS outputs, I get the static from the brass.  I also hear a clicking noise 
with each press and release of the keys. It clicks when the key is pressed 
down, and clicks when it's released, again, only on the brass section. 

I've tried to figure out what was doing it, but, I can't. I thought that it 
was maybe a bad cap or something, but, I can't find any on the brass filter 
board. Who knows.





About the Roland RS-09 knob, I don't know if Roland can supply one, or not. I 
don't know how to go about contacting them.  It is a 4 octave keyboard. I 
wish it had CV in/out or something. It only has Gate. The crumar has Gate 
out. I wish that the crumar and roland worked with cv or something so that i 
had a better keyboard to control a pro-one with. 

thanks again
j.



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