DEQ2496 continual reboot(?) Help! - diyAudio
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Old 4th July 2007, 08:03 PM   #1
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Default DEQ2496 continual reboot(?) Help!

I have a Behringer DEQ2496 that signal wise sits between an SRC2496 and a DCX2496. It has been used in a home stereo for about 2 years.

Starting about 6 months ago I got an intermittent signal cutout during the first 10 minutes of warmup of the DEQ2496.

Now when I turn it on, the front LEDs blink together every ~1/2 second. This is continuous, otherwise nothing else. Is this a cyclic reboot?

I took the cover off and poked around for shorts or burned components, exercised the connectors, etc., - to no effect.

Anybody out there had this problem? Any suggestions? Otherwise I'm looking at 300 clams for a new unit...
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Old 16th July 2007, 10:54 PM   #2
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I had the same problem with mine when it arrived used via eBay. I removed the boards and put tape down on the bottom of the chassis and put everything back together. It was a stab in the dark, as this method of "repair" fixed a shorting issue I had with one of my DCX's a couple years ago.

So far so good, no rebooting since then. (knock on wood)

Good luck.
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Old 30th March 2010, 11:50 AM   #3
simone is offline simone  Italy
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Same cyclic reboot here, click/clack from relays & display on/off in an infinite loop.
Stab in the dark n.2 for me: lid removed, exercised PSU connector and... it looks like to work right now without lid on.

Overheat? PSU cable connector?
Is PSU going to R.I.P.?
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Old 13th May 2010, 12:46 AM   #4
gphoton is offline gphoton  United States
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Default Mine too

Hi, My DEQ2496 from eBay has started to do this too very intermittently. I saw an Amazon review where somebody put heatsinks on the Sharc DSP's to fix their issue. I plan on "all of the above": tape on the chassis, check the PS connector and put some old motherboard northbridge heatsinks on the DSP's. Another poster also mentioned that running the RTA for extended periods leads to issues, which points to a potential heat problems. If this doesn't work the next step would be PS cap and regulator replacement.

Also, anybody know where I can get Seoman's remote control software for this thing? The link is down.
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Old 14th May 2010, 07:08 AM   #5
col is offline col  Australia
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You could try the linear PSU mod:

AW DIY - Audio designs for the DEQ2496 and DCX2496

col.
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Old 30th September 2012, 10:08 AM   #6
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hello guys, i have the same problem of your deq2496, my deq2496 sometime go down and restart for more time.
i have 3 deq2496 and when the first had problem i have open it and i controlled all the pcb and the connector and i have find that i disconnect the power supply and riconnect it the deq2496 work perfectly.
yesterday the second deq2496 have make the same problem , this problem for in my case is a very big problem because if one of these unit reboot continuosly interupt the mainly sound to all amplifiers!!!!
you have find a solution for this problem? i don't think that the problem is only the psu connector but i don't know the very problem....behringer know the problem???how behringer purpose for this problem?
best regards to all alessandro
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Old 1st October 2012, 03:46 AM   #7
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Bear in mind that Behringer is a low end, cut-rate company, that builds things as cheaply as possible. This means that things like electrolytic capacitors are sub-standard quality & very likely to start failing after a year or two. So, start changing caps to reliable Nichicons or Chemicons & you'll have the best shot of resurrecting it & having it stay fixed.
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Old 1st October 2012, 04:09 AM   #8
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Default Hopefully it's the AC connection

And a less obvious fix is to make sure the AC cable is FIRMLY pushed in to its limit.

I had this same "problem" with one of my units and thought it was defective only to discover it was in fact a loose connection in the AC socket, caused by the undersized pins Behringer chose for the AC socket.

Once I made sure the AC connector was properly seated and all the way in, the problem disappeared. It may be a good idea to change out the AC receptacle.

BTW Stephen's recommendation to change the caps is a good one, the sound of the unit may improve as well.
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