commonsound forum: Noise Swash => unsucessful swash

commonsound

kits ... forum ... about us ... contact ... license ... 4ms Pedals

Members

FUDforum help

Home

Building How-to » Noise Swash » unsucessful swash

Show: Today's Messages :: Unanswered Messages :: Show Polls :: Message Navigator

E-mail to friend

unsucessful swash [message #1755]

Mon, 31 December 2007 16:14

jordan s
Messages: 2
Registered: December 2007

Junior Member

I completed my swash with mini swash board I received a few weeks ago and it does not work. Everything is where it should be with correct polarity, I've checked my wiring and my connections and it's all as the instructions say it should be. All connections are solid, the ics are in correctly, I've even checked to see if the ic leads were bent which they are not. NOTHING happens. Well, the led turns on, that's about it. I get a clean signal though when switched off, when switched on I don't get a single sound. I've twiddled the knobs every which way and checked the wiring about a thousand times. I just can't figure this one out. I've read in some past posts that I should be getting 9v at pin 8 and 0v at pin 4 of the ICs. I've tested this and found that there is no voltage at pin 8 of either IC. What would cause this? Perhaps someone has a photo of the bottom the pc board so I can trace the signal.

Report message to a moderator

Re: unsucessful swash [message #1756]

Tue, 01 January 2008 16:05

jordan s
Messages: 2
Registered: December 2007

Junior Member

Fixed it. On the wiring diagram, the center lead of the low power pot connects to the center low power hole on the board. As far as I can tell, this really only powers the led. I had to bridge the center and right low power holes to get voltage to the rest of the board. The pedal works fine now and sounds how I believe it's supposed to. So is the wiring diagram erroneous or did I just make a lucky mistake?

Report message to a moderator

Re: unsucessful swash [message #1766]

Tue, 08 January 2008 11:39

dann
Messages: 829
Registered: December 2002
Location: Austin TX

Senior Member

so did you use a low power pot? if you don't use the pot, you need to jumper the board where the pot will go. the kit normally comes with low power, so it's normally not an issue. But it would make sense to make a note on the site...

Report message to a moderator

Re: unsucessful swash [message #1995]

Mon, 01 September 2008 09:53

kriista
Messages: 24
Registered: December 2007

Junior Member

had the same exact problem here. my friend finally finished his 1.3 swash kit and we were getting nothing. just LED. after reading this post we tried it and it worked.

following the wiring diagram for the 1.3, nothing worked. in looking at the circuit board here:

http://www.commonsound.com/kits/lib/exe/fetch.php?cache=cach e&media=wiki%3Amns_build%3A3_filled.jpg

the +V is leaving the center pin of the low power section, where as on the 1.3 its leaving the right most pin.

is this a mistake in the diagram/board or is there something else that we missed?

either way it sounds kickass. finishing putting it back together, and gonna compare it with my oldschool point-to-point board.

Report message to a moderator

Re: unsucessful swash [message #2000]

Thu, 04 September 2008 12:25

dann
Messages: 829
Registered: December 2002
Location: Austin TX

Senior Member

WhoopS! Found a mistake in the wiring diagram. Confused

The Low Power pot should go to the bottom right and center holes on the board.
I updated the PDF file, so it's correct now:

http://www.commonsound.com/swash/mNS/wiring.pdf

The photo you linked to, kriista, is from an old board version (which matches the way the diagram was)

[Updated on: Thu, 04 September 2008 12:26]

Report message to a moderator

Re: unsucessful swash [message #2003]

Sat, 06 September 2008 10:06

kriista
Messages: 24
Registered: December 2007

Junior Member

I know it was an old version I linked, as that one showed it going to where we ended up wiring it to (the diagram didn't match the board in our kit).

Report message to a moderator

Previous Topic:	add LFo to NS, where to input
Next Topic:	army swash troubles

Goto Forum:

-=] Back to Top [=-

Current Time: Sat May 18 15:40:29 EDT 2013

.:: Contact :: Home ::.