Jump to content

Could 10cm cables between the MB_6582 mainboard and the CS board be too long?


borfo
 Share

Recommended Posts

I'm troubleshooting a few misbehaving switches and LEDs on my recent MB_6582 build - there are still a few switches and LEDs that aren't working.  Could just be bad switches/burnt out LEDs, but before I start desoldering and replacing stuff, I thought I'd ask about maximum cable length between the control surface and the mainboard.  My cables are about 10cm long at this point - is that within acceptable range, or could that cable length be causing issues?  The build guide says something around 4.5cm is "ideal", but is 10cm too long?

Edited by borfo
Link to comment
Share on other sites

Should be okay. With a matrix design, you usually get entire rows or columns out rather than a few here and there.

One thing I've noticed, is that the through hole plating is not always the best. For LEDs and switches that don't work, try soldering on both sides of the joint, adding flux if you need to. You have to be careful of melting any plastic components, and also e.g. soldering LED legs one at a time so the alignment stays good.

Link to comment
Share on other sites

Thanks - that's helpful.  The cable length thing does have weird effects though - I initially had 20cm cables, and shortening to 10cm fixed a bunch of misbehaving switches and glitchy LEDs.  The few that are still not cooperating are probably bad parts, or as you say, maybe not properly soldered. 

 

I'll start working them over on the weekend.  Normally, I don't mind this kind of troubleshooting stuff with a new synth build, but I'm pretty impatient to get this one fully working so I can make crazy noises with it...  Even in the "almost-fully-working" state it's in now it's pretty amazing.

Edited by borfo
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

×
×
  • Create New...