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C163 at SD

Posted: Aug 13th, '16, 17:52
by jeroenbvo
On the BOM it's 0.047µ and in the schematic 0.47µ. Also on the build pics it shows as 0.47µ. Which one is correct? As it is not found on the original, at least I don't see it..

Re: C163

Posted: Aug 13th, '16, 17:55
by drifter7508
To speed things up, which part are we talking about?

Re: C163

Posted: Aug 13th, '16, 18:06
by jeroenbvo
Snare drum, capacitor at Accent, to gnd

Re: C163 at SD

Posted: Aug 13th, '16, 18:48
by drifter7508
Good question. I followed the build spec. with a 0.047.
Can't find it on the original either...:-/

Re: C163 at SD

Posted: Aug 13th, '16, 20:21
by jeroenbvo
Seems like that all instruments have the Accent tied to ground with a Cap of .47µ on the schematics.
It's probably there because Vincent designed it like that due to the difference of his sequencer and the original. Question is why? And if not what is the value? Is this causing the issues reported as we all followed the BOM? However as his demo sounds pretty good to me I will opt for the 0.47µ.

Maybe Vincent can shed some light next week.

Re: C163 at SD

Posted: Aug 14th, '16, 03:56
by e-licktronic
jeroenbvo wrote:Seems like that all instruments have the Accent tied to ground with a Cap of .47µ on the schematics.
It's probably there because Vincent designed it like that due to the difference of his sequencer and the original. Question is why? And if not what is the value? Is this causing the issues reported as we all followed the BOM? However as his demo sounds pretty good to me I will opt for the 0.47µ.

Maybe Vincent can shed some light next week.
C163 is 0,047uf. BOM will be updated

Best regards,
e-licktronic

Edited on September the 9th 2016

Re: C163 at SD

Posted: Aug 14th, '16, 11:03
by jeroenbvo
Thanks for your response Vincent and welcome back! :D

Can you also have a look at the transistor issues we encountered in the SD?: viewtopic.php?f=24&t=970&start=10#p5645

Complete thread:viewtopic.php?f=24&t=970#p5622

Re: C163 at SD

Posted: Sep 2nd, '16, 21:34
by drifter7508
e-licktronic wrote:
jeroenbvo wrote:Seems like that all instruments have the Accent tied to ground with a Cap of .47µ on the schematics.
It's probably there because Vincent designed it like that due to the difference of his sequencer and the original. Question is why? And if not what is the value? Is this causing the issues reported as we all followed the BOM? However as his demo sounds pretty good to me I will opt for the 0.47µ.

Maybe Vincent can shed some light next week.
C163 is 0,47uf. BOM will be updated

Best regards,
e-licktronic

I changed this one to 0,47uf and now the Accent is all screwed up on the snare!
The build guide also shows a 0,047uf! The board with the buzz fix Vincent shows also have a 0,047uf.
0,47uf mess things up! (Or something else has happened)

Re: C163 at SD

Posted: Sep 3rd, '16, 07:32
by drifter7508
I changed back to 0,047uf. Now the snares Accent is back to normal again.
DO NOT USE 0,47UF!

Re: C163 at SD

Posted: Sep 3rd, '16, 08:12
by beeb
I'm pretty sure I put a 0.47uF from the start and my accent is fine.. the problem might be elsewhere.