Help! What does this mean? Orig Ground Control question

Q & A for building and interfacing your rack gear with Ground Control Pro and GCX-based systems.
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bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Help! What does this mean? Orig Ground Control question

Post by bclaire »

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At soundcheck yesterday everything was fine- came back for the gig 5 hours later and every light on the Ground Control lights up and it won't work! Tried two other good midi cables and unplugged it from the GCX and tried the original power supply to no avail.

Any suggestions?

thanks
Billy

bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Re: Help! What does this mean? Orig Ground Control question

Post by bclaire »

Actually, switch 2 (LED 4) isn't lighting... would a burnt out LED cause this?

Pulled it apart and checked for unseated chips, cold solder joints, and such, but everything looks fine...

bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Re: Help! What does this mean? Orig Ground Control question

Post by bclaire »

Did the reset as per manual- unit went completely blank. An hour later back to all lights lit except for LED4...
Last edited by bclaire on Wed May 26, 2010 5:41 am, edited 1 time in total.

JohnClark
Posts: 7494
Joined: Tue May 05, 2009 2:33 pm
Location: The Lab

Re: Help! What does this mean? Orig Ground Control question

Post by JohnClark »

I see you have already opened it up and checked that chips were all seated, I will have to say that the cold solder joint search was destined for failure...Although it has died now apparently, it has functioned for many years, therefore, no cold solder joint. One thing to check would be for a cracked lead on the frequency crystal that is directly below the 40-pin chip. If one of those leads is severed then you would get the random behavior you are seeing. If it is severed, re-solder the leads and glue the frequency crystal down with some silicone glue. If that does not help then you should give us a call to discuss sending it in for repair. Good Luck!
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bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Re: Help! What does this mean? Orig Ground Control question

Post by bclaire »

In thinking about it overall, I found a second one on ebay to get me through gigs and such. (Hopefully, it's revision 2.4) But then I'd like to get this one sorted- I'll look for the cracked lead but is the non-working LED of any concern?

I'd love to have a GC Pro but unfortunately I often play barefoot and the buttons on the Pro are non-friendly compared to the pads on the first generation... I tried one out once and limped for two days and the bottom of my foot was one big bruise!

JohnClark
Posts: 7494
Joined: Tue May 05, 2009 2:33 pm
Location: The Lab

Re: Help! What does this mean? Orig Ground Control question

Post by JohnClark »

bclaire wrote:In thinking about it overall, I found a second one on ebay to get me through gigs and such. (Hopefully, it's revision 2.4) But then I'd like to get this one sorted- I'll look for the cracked lead but is the non-working LED of any concern?
Until the unit is functioning again, there is no way to tell if the LED in question is in fact not working.
bclaire wrote:I'd love to have a GC Pro but unfortunately I often play barefoot and the buttons on the Pro are non-friendly compared to the pads on the first generation... I tried one out once and limped for two days and the bottom of my foot was one big bruise!
eww, perhaps we don't want this in here for repair! ;)
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---------==Voodoo Lab Magician & Tech==---------

bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Re: Help! What does this mean? Orig Ground Control question

Post by bclaire »

Ha ha ha! I clean it after every gig!

octatonic
Posts: 26
Joined: Wed Aug 19, 2009 5:26 pm

Re: Help! What does this mean? Orig Ground Control question

Post by octatonic »

bclaire wrote:I often play barefoot
I thought we had a 'no hippies' policy here?

bclaire
Posts: 7
Joined: Sun May 23, 2010 12:23 pm

Re: Help! What does this mean? Orig Ground Control question

Post by bclaire »

Ha ha ha ha...

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