Behringer DDX3216 - Trying to repair, please help!

[Chuck H]

Ah. Ok. Well, I don't do anything with digital or logic so I'll be lost WRT the CPU trouble. My remarks above were just the basic trouble shooting that applies with little exception to any repair. But one little exception could certainly be that you've got the thing open and half apart anyway. I'll still stand by what I said about whether Q1 and those ceramic caps are common failures or individual cases. If they're common then there's only a small chance of harm doing the additional work. That small chance being that any error or damage you cause (not that I assume you would, but...) could complicate other troubleshooting. It's usually best to repair the known failure before doing any other service just to avoid this potential complication.

103m is a .01uf value with a +/- 20% tolerance

104 is a .1 value

I don't know what voltage is spec for those parts. Maybe someone who posted on this thread and is more familiar with this mixer will chime in on that. But if the parts are known to fail commonly then why? If it has anything to do with the voltage rating then I should think bumping that spec is a good idea anyway.?. And like I said above, 100V for anything in that mixer should be plenty (with the possible exception of any snubber caps on the AC side of a power supply). About the only other concern would be size. I don't know how crowded the boards are in that thing but I guess that the physical size of the capacitors could be a consideration.

[Oldie]

Chuck thank you very much for taking the time to help.

I should have been clearer. The board is malfunctioning, when powered on, all the lights stay on and all faders creep up slowly. So unusable.

I am taking apart the PSU and can't determine the specifications for the following two components:
-C47 marked 103m: 0.01 uF. But what voltage rating should I get as a replacement? Ordering ok n Canada from Digikey.
-C52 marked 104 on schematics: 0.1 uF. Again, what voltage rating should I get?

The schematics I've found online don't specify voltage ratings, only uF. I found the uF rating on page 44 of the following link but no details on voltage rating:
https://www.electronica-pt.com/esque...hematic-27415/

Thanks a bunch!

[Chuck H]

Probably the best thing you can do is just use it. If it exhibits any intermittent contacts or scratchy faders get some pot cleaner and contact cleaner. They are mutually exclusive and NOT the same thing so pay attention to that. Don't fix it if it's not broken.

If the chip you propose replacing were bad you should probably know. If you read somewhere that it failed in one of these mixers, don't worry about it. If you read that it failed in a bunch of these mixers then maybe buy one to have on hand.

As to the electrolytic caps, that unit isn't very old. I wouldn't have expected failure yet, but if you've already removed them then you might just as well put in new ones rather than stick the eight year old ones back in. If you haven't actually removed them then don't. They could last another ten+ years for all we know. I doubt all the automated stuff and logic interface in that mixer will last that long so you're effort ahead to leave them in there.

As to the ceramic caps, same as above. If these are just the caps reported in individual failures then forget about it. If they are indeed common failures then just have replacements on hand and take note of the reported symptoms so you'll know if any one of them fails.

Nothing in that mixer should be high voltage. I would expect 100V caps to be sufficient throughout the circuit and most ceramic cap offerings are at or above that anyway.

C47- Why is there a question mark after the value indicated? If it says .1uf then that's what it is I suppose. Otherwise, what DOES it say on the cap or in the schematic? We can't answer to a quandry if we don't know what it is.

C52- 104 is .1uf

[Oldie]

Wow 8 years and still going!

Bought the DDX 3216 for cheap.

Power on and then all lights up. Faders crawl upwards slowly over the course of a few minute.

So... I went through the forum and noted the most common issues and will replace
- PSU electrolytic caps (after removing them, none had leaked weird)
- Q3
-C47 ceramic
-C52 ceramic

I will not go into more advanced components if that doesn't work and get rid of the board.

Can someone tell me the specs of please:
-C47 (0.1uF?, volts?? How can one tell the volts?)
-C52 (104?)

Any help is appreciated. I know diagnosing is better, but that's a whole other game.

Justin

[brin]

THANK YOU!

Successful LCD fix after replacing all 4 caps surrounding the SCI7654 dc dc converter on the LCD module with tantalium caps.

Thanks a lot for this information!

[Phoebus1966]

If anyone could help me with version 1.12 (surround sound) of the bin files of IC15 up to including IC18 (and IC19 it wouldn't harm) I'll be very glad. It is because my latest update before the mixer went down was this one. Thanks beforehand.

[Phoebus1966]

...comprehenda.
The group switch combination just sets it to factory default, It does not initiate a EPROM load, maybe you have a partially corrupted device. ....

Nisse's experience with DDXupdate V1.11: http://forum.ampage.org/forum.php?cmd=vp&mid=274175

Google 'DDXupdate V1.11 ddx3216' to find the history of this application. GROUP is to engage the mixer in ready to receive data mode and no flash is necessary for that and the mixer only needs to have a working EPROM (basically PROM since without UV window) but its .bin is available online here and elsewhere.

[Phoebus1966]

You also belive in faries I suspect....... think about it ? and I shall explain.
The update 1.11 is a firmware bin factory file for the basic DDX, the 1.12 update for surround sound is a file transfer update, and the only update from factory I know of that works with windows.
Updates rely on the fact that RS232 or MIDI communications are functioning which is dependant on there being a valid OS in the main EPROM. ie 1.11
These are flashed in factory with an OS1.11.bin file. A system backup file can then be made via RS232 or MIDI.

If you EPROM is unreadable for whatever reason..?..
Then you will require a valid working one, to get communications with any RS232 or MIDI device, and onboard interface....comprehenda.
The group switch combination just sets it to factory default, It does not initiate a EPROM load, maybe you have a partially corrupted device .
Take it from me, the system can only be reloaded,by eeprom programmer, and only updated with rs232 ,if it dont talk to windows the you are fecked.
I take it you do have the windows DDX file transfer application 1.1f, and if so can you communicate with the desk ?!
DO YOU HAVE A FILE EXCHANGE BACKUP ?
I suspect not.

Nope, no faries. I just now pulled IC 15, 16, 17 and 18 and left IC 19 in to demonstrate that GROUP indeed is the button to engage the DDX in ready to receive mode via the RS232. This to see if I misunderstood their published experiences with the emergency app called DDXupdate. Nisse expressed clearly there is no need for a working second mixer to fix a broken one with (E)EPROM burners and he was very happy and thrilled he could use this application.

[S2udio]

You also belive in faries I suspect....... think about it ? and I shall explain.
The update 1.11 is a firmware bin factory file for the basic DDX, the 1.12 update for surround sound is a file transfer update, and the only update from factory I know of that works with windows.
Updates rely on the fact that RS232 or MIDI communications are functioning which is dependant on there being a valid OS in the main EPROM. ie 1.11
These are flashed in factory with an OS1.11.bin file. A system backup file can then be made via RS232 or MIDI.

If you EPROM is unreadable for whatever reason..?..
Then you will require a valid working one, to get communications with any RS232 or MIDI device, and onboard interface....comprehenda.
The group switch combination just sets it to factory default, It does not initiate a EPROM load, maybe you have a partially corrupted device .
Take it from me, the system can only be reloaded,by eeprom programmer, and only updated with rs232 ,if it dont talk to windows the you are fecked.
I take it you do have the windows DDX file transfer application 1.1f, and if so can you communicate with the desk ?!
DO YOU HAVE A FILE EXCHANGE BACKUP ?
I suspect not.

[Phoebus1966]

Hi just to make things clear, There is no such thing as a magic 1.11 DDX update file, you need to burn a new or reflash the existing one
There is no serial port comms with a faulty OS eeprom I have the eeprom bin some where but you need a programmer to do this !
They are pretty cheap nowadays.

Oh yes there is an emergency tool for bricked DDX3216 mixers. PLZI.com mentions it, Nisse mentions it and others on the web also. It is a Windows application and yes it is called DDXupdate v1.11 and it is intended to be used in combination with a DDX that went bricked caused by corrupted flash memories due to an interrupted normal update. The bricked DDX is set ready by powering in on with the GROUP switch pressed. There you go

[S2udio]

Hi just to make things clear, There is no such thing as a magic 1.11 DDX update file, you need to burn a new or reflash the existing one
There is no serial port comms with a faulty OS eeprom I have the eeprom bin some where but you need a programmer to do this !
They are pretty cheap nowadays.

[Phoebus1966]

see PM

Months ago we discussed the CPU. That got fixed. But do you have the emergency application named DDXupdate V1.11? We, me and others, needs it dire. Greets, Ben

[Phoebus1966]

Most of the files including firmware are available here.

https://www.musictribe.com/Categorie...0066/downloads

No they are not. The Behringer download site is a mess and Uli Behringer doesn't care.

[Phoebus1966]

Hello,
you also need the communication program which was written for xp so in a w10 pc you should run it as software compatible for xp, i attached the software also...

Do you still have the DDXupdate V1.11? I need it and have asked many already. It is the stand alone emergency application which is the only possible solution on a bricked ("Invalid Program") DDX3216.

[Phoebus1966]

Hi,
So how do you replace your capacitors if you don't dismount your PSU?
By the way, I think you have to clean your PSU-fan a bit!

Well, does anybody know the difference between the V112.bex and V109.bex? For me it looks like V112.bex is a newer firmware, but on behringes homepage it says:
V109.bex = Latest firmware
V112.bex = Audio software (surround software)

Do I need to install them both?
How can I see the installed version(s)

Ps.
If anyone needs the DDXUpdate, I can share it for you.

/Nisse

Yes I and many others would love to have the DDXupdate V1.11 emergency tool uploaded or sent to us by email so we can upload it here.

We also need to call Uli Behringer to alert him of the deplorable and lazy support.