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Re: Bass Drum BUZZZ
Posted: Jul 26th, '16, 17:32
by decoder303
swapped all transistors, buzz is still there
of course it has to be the kick.. why not one of the toms
Re: Bass Drum BUZZZ
Posted: Jul 27th, '16, 21:38
by p4rancesc0
Bump!
Anyone ?
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 16:31
by Data Jam
i didn't notice this before o_O but i also have a buzz on the bass drum (main out and single out), its also to quiet compared to other instruments...
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 16:47
by peskado
Same with my BD, its also to quiet compared to other instruments
Maybe some errors in PCB design?
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 16:57
by decoder303
ok, at least some others also have the same problem, so there might hopefully be a bigger chance that we get at least a little bit of support..
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 18:59
by peskado
I'm comparing Nava and r909 schematics
Maybe some errors
I checked my Nava with scope and it look like some buzz coming from IC11 pin 3
is anybody have pictures with traces?
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 20:07
by decoder303
IC11 pin 3 is connected to ground..
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 20:11
by peskado
yes, i know
I checked this pin with scope
some news
If remove IC33 and ic32 no Buzz on scope
Maybe some errors in Noise section
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 20:13
by peskado
What cd4006 in your nava?
I used rare toshiba
Re: Bass Drum BUZZZ
Posted: Jul 29th, '16, 20:34
by decoder303
I removed one leg of r10 (input of noise) and the buzz was still there. I have to check tomorrow which 4006 I used..