Originally posted by Termac
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Behringer DDX3216 - Trying to repair, please help!
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Originally posted by gassanov View PostYes...i already re soldering all the memory chip...i foget the ic label but it looks like a chip on the computer ram. But the problem still there. I guest i have to changes the memory chip righ?
Well, if you have verified that all pins on the power connector on the mainboard have the right voltage and the VCC on the memory chip (be careful here while measuring here), I would try to replace the memory chips. It can be a little bit tricky to remove the old memory chips, but if you got hold of new chips, it's sometimes easier to cut of pin by pin on the old mem-chip with a small sharp nipper. When that is done, you can remove the capsule and the remove pin by pin with the soldering iron. (This is not a beginners operation)
Now it's just to put the new on place! (c;
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It will be easier and less destructive to probably good ICs to use Chip-Quik SMD Removal using a Chip Quik kit - YouTube very low temperature solder to simple wet all the leads with the solder and pick the part off with your figures without damaging it or the pc board. Those chips would each take about 5-10 second of work to remove and yield an undamaged board and chip that can be reinstalled if you find it is not the problem. That and hot air are the only two ways of properly removing such a large chip. The same low temp solder is very useful in removing heavier parts that are solder to ground planes/heat sinks, such as a pot or switch, jacks and others that could take a lot of heat applied to both sides of the board to remove if using a conventional desoldering technique such as braid or solder sucker.
Good luck
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Those RAM memory chips are pretty robust .
I have seen those BOOT memory errors before........from what i remember ,turned out to be the Elan microprocessor,
I would recommend a reflow of the micro ,then replace if no joy.
? We are talking about the CPU RAM(s) rather than the Flash ROM(s) ?!Last edited by S2udio; 10-02-2012, 04:17 PM.
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Originally posted by S2udio View PostThose RAM memory chips are pretty robust .
I have seen those BOOT memory errors before........from what i remember ,turned out to be the Elan microprocessor,
I would recommend a reflow of the micro ,then replace if no joy.
? We are talking about the CPU RAM(s) rather than the Flash ROM(s) ?!
One of my DDXs has a little defect on the DSP card. There is a little "klicking sound" on FX1 on some effects. I would guess it is some problem with one of the memory chip on the DSP board, but i'm not shure. Perhaps you know anything about that? Besides that, the mixer works fine.
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Wow - - What all this says to me: "Stay the hell away from Behringer gear until they learn how to design reliable electronics"
No offense meant. In many ways, Behringer is like Peavey was back in the '70s: Low dollars, feature packed, and absolutely not reliable enough to be considered road-worthy. Eventually Peavey, over the years, mastered the art of electronics design, and now make some great stuff.
Assuming Behringer is on a similar path, I may look into buying some of their stuff around 2025 or so...
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Originally posted by philbo View PostThe original is an Advanced Micro (AMD) part. It will probably require an exact replacement - If I recall correctly, the AMD parts had some processor instruction set differences to the Intel 386 processor.
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