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 Forum index » DIY Hardware and Software » Klee sequencer
Some Klee Issues
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rosch



Joined: Oct 03, 2009
Posts: 162
Location: germany

PostPosted: Wed Aug 07, 2013 7:06 am    Post subject: Some Klee Issues Reply with quote  Mark this post and the followings unread

hi guys,
i have some issues with my Klee build. at first, as far as i can tell everything was running ok. then problems started with section A.
first step 2 went out of function. after a while it's now steps 1-4 that don't work anymore. i.e. the output cv for these steps is the lowest as if the fader is turned all the way down. also there are no gates for these steps.

also, another problem that i observed just recently is that i can't program steps 5+6. however, step 5 occasionally works if programmed together with step 4. it's also shown in the youtube video.
in this video step 5 appears to work sometimes after deactivating step 4.

another weird thing is that the ranges switch doesn't give correct ranges anymore. manual never worked and now it's only 2 of the fixed ranges working but i think they're also not in the right position, i have to check that again.

any tips maybe where i could start troubleshooting? bad soldering maybe or could it be i fried a chip when i hooked up a not working module to the system? (shorted)
any hints / thoughts would be greatly appreciated.

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elmegil



Joined: Mar 20, 2012
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PostPosted: Wed Aug 07, 2013 6:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

Just a SWAG after building mine, I'd expect gate/step problems to be on the digital board. If you're not getting the gates I wouldn't expect the steps to work.
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Rivelen



Joined: Mar 02, 2007
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PostPosted: Thu Aug 08, 2013 2:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

it's maybe related to that CD4034 brand problem :
http://electro-music.com/forum/post-172714.html
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rosch



Joined: Oct 03, 2009
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PostPosted: Thu Aug 08, 2013 7:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks,
i'll check which type is in there and get some replacements to try if there's a difference.
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State Machine
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PostPosted: Thu Oct 17, 2013 1:02 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi, any resolve to the problem ?? Just curious Wink

Thanks
Bill
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elmegil



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PostPosted: Thu Oct 17, 2013 5:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Since this popped back up, I'd also recommend reading the troubleshooting section of NV's build doc. The most common problems seem to be with the MTA cables.
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EdisonRex
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PostPosted: Wed Oct 23, 2013 12:23 am    Post subject: Reply with quote  Mark this post and the followings unread

elmegil wrote:
Since this popped back up, I'd also recommend reading the troubleshooting section of NV's build doc. The most common problems seem to be with the MTA cables.


This is very likely especially when you get a section out like that. I had this problem back when I built mine (in 2009?) and it was just a bad finger in one of the connectors.

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rosch



Joined: Oct 03, 2009
Posts: 162
Location: germany

PostPosted: Sun Jun 08, 2014 3:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

thanks guys, that's what i'm hoping. it can't be much, as it worked before. there is the possibility that some ICs were hurt when i connected the add on boards to the random looping sequencer couple of times in a couple of wrong ways (shorts, and they were in the same system)

i haven't really checked since back then, also a few months break from diy (or GAS) but now comes troubleshooting of some of my modules.

i'll report back when i find something
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Uncle Krunkus
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PostPosted: Mon Jun 09, 2014 5:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

There are a lot of inter-board, and off board connections. We did that to simplify the boards, and maximise options, but it means you do have to make them VERY reliable.
On the prototype, I crimped, AND SOLDERED, every connector as I went. It worked perfectly almost immediately, and has never missed a beat. That is what I would be double checking first.

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