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korg delta schematics needed
Posted: Fri May 12, 2006 2:18 pm
by radek tymecki
I need schematics... Sth wrong is with my Delta. The lead section is very quitet... What can it be??
Posted: Fri May 12, 2006 3:47 pm
by jarrekid
It could be a bad potentiometer or switch. Try here for more possible answers:
http://machines.hyperreal.org/
Posted: Wed May 17, 2006 6:49 pm
by radek tymecki
Nothing interesting there
Posted: Wed May 17, 2006 8:57 pm
by PHASEREFFECT
Or a defect Opamp (Operational Amplifier), parts like LM741/LM13600/13700 blahblah....some of them use a capacitor around their circuit and, dependig on the age of the Delta, it is possible that one of them is simply dry.
I think that the Delta is some sort of Siel Cruise: Mono/Poly Section, Poly=Presets, Mono/Lead-Section=Presets and "programmable" etcetc. The Poly Section is build around a Top Octave Generator with frequency dividers (proably under the keybaord at the front side) and lots of CMOS 4xxx Chips, the Lead/Mono Section around a simple ICL8038 VCO. Are the Chips inside your Delta socked? Could you count me the chips which does -not- start with "4" or with "74"? Are there any chips which are "Korg"-labeled and -if-, with which number they are labeled?
Stef