Oops.. May have fried my M-audio SuperDAC 2496

motherone · 9th March 2005, 05:29 AM

Well, I was modifying my M-Audio SuperDAC 2496 tonight. I had completed upgrading all the caps to Cerafines and Panason FM series caps last night, with no problems.

Tonight I decided to go in and swap out the 1N4001 diodes with MUR8100E's (they're the best that I have laying around right now). I also decided to put in new output jacks. Everything was going fine except being tired and dumb, I screwed the polarity of the diodes up. Well, things were fine for a little bit, since I didn't replace the diode in front of the 5volt regulator (7805). However, once I reversed that, you can guess what happened.

Pop. 1 less 2200uF/16v Panasonic FM, and me dodging some flying electrolyte.

So my question is this. The 5volt regulator seems fried (no voltage on it's output, now that I assume I have the diodes in correctly). I'm going to set out to replace it tomorrow, but I'm hoping (and praying) that I didn't fry the digital section of this DAC.

If nothing else, let this be a lesson to not do stuff when you're tired

Does anyone out there have any advice on troubleshooting after I pick up and install a new 7805 from the ratshack tomorrow?

Thanks!

M1

Cobra2 · 9th March 2005, 07:45 AM

the damaged components, and I think the rest would be ok.
There are hardly any damage after regulators, in my experience.

Arne K

motherone · 9th March 2005, 08:22 AM

Quote:

Originally posted by Cobra2
the damaged components, and I think the rest would be ok.
There are hardly any damage after regulators, in my experience.

Arne K

Thanks Arne. I hope you're right! If there's no damage after the regulator I will be most happy

motherone · 11th March 2005, 09:09 PM

I swapped out the 7805 for one from the ratshack and she's working beautifully again. Now I have a wholly modded 2496 that I'll post some details about once I get pictures of it.

Thanks again!

9th March 2005, 05:29 AM	#1
motherone diyAudio Member Join Date: Apr 2003 Location: Seattle	Oops.. May have fried my M-audio SuperDAC 2496 Well, I was modifying my M-Audio SuperDAC 2496 tonight. I had completed upgrading all the caps to Cerafines and Panason FM series caps last night, with no problems. Tonight I decided to go in and swap out the 1N4001 diodes with MUR8100E's (they're the best that I have laying around right now). I also decided to put in new output jacks. Everything was going fine except being tired and dumb, I screwed the polarity of the diodes up. Well, things were fine for a little bit, since I didn't replace the diode in front of the 5volt regulator (7805). However, once I reversed that, you can guess what happened. Pop. 1 less 2200uF/16v Panasonic FM, and me dodging some flying electrolyte. So my question is this. The 5volt regulator seems fried (no voltage on it's output, now that I assume I have the diodes in correctly). I'm going to set out to replace it tomorrow, but I'm hoping (and praying) that I didn't fry the digital section of this DAC. If nothing else, let this be a lesson to not do stuff when you're tired Does anyone out there have any advice on troubleshooting after I pick up and install a new 7805 from the ratshack tomorrow? Thanks! M1

9th March 2005, 07:45 AM	#2
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Just replace the damaged components, and I think the rest would be ok. There are hardly any damage after regulators, in my experience. Arne K __________________ Ars longa, vita brevis

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11th March 2005, 09:09 PM	#4
motherone diyAudio Member Join Date: Apr 2003 Location: Seattle	I swapped out the 7805 for one from the ratshack and she's working beautifully again. Now I have a wholly modded 2496 that I'll post some details about once I get pictures of it. Thanks again!

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