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No Power voltage on ic36 snaredrum.
Posted: Sep 19th, '18, 16:17
by JP maro
Hi, i'm finished snare section and before put the ic, testing power voltage. 15v on all ic except ic36. No voltage on 7 and 14 pins. Rp3 ans rp4 have 15 ans -15v.
Help please Is it normal?
Re: No Power voltage on ic36 snaredrum.
Posted: Sep 20th, '18, 07:08
by serum114
I think you are ok to proceed. If you are unsure and want to wait I'm building a Nava currently and expect to fire it up tomorrow so I can the check for you then - to be honest I never check the voltages IC36, if you look at the silkscreen there is no test point point for voltages so I guess the voltage isn't critical for the 4069 (I might me wrong!!). Maybe check all you polarized parts just to be sure of their orientation.
Re: No Power voltage on ic36 snaredrum.
Posted: Sep 20th, '18, 07:56
by Wellental
Did you check the schematic?
IC36 doesn't use power voltages of +/-15V!
instead its powered by the Amp Tune Envelope buffered at IC35A&B - IC36 is part of the 2 oscilator circuits of the SD
Re: No Power voltage on ic36 snaredrum.
Posted: Sep 20th, '18, 09:30
by JP maro
Thanx very much guys