Modify behringer DEQ2496? - Page 12

ampsarus · 16th July 2007, 11:09 PM

Fixed it with tape on the bottom of the chassis, same as in one of my DCX's. Tape can work wonders in shorty Behringer gear.

stef1777 · 20th October 2007, 03:55 PM

Welcome to my new web site dedicated to the DEQ2496.

http://www.awdiy.com/

Have fun!

.

stef1777 · 29th November 2007, 12:19 PM

I got a new DEQ2496 v2.4. it seems that the DSP board have been heavily modified. A first look show that crystals have been moved to another locations, LM317 to produce the digital 2.5v removed (and replaced by a dedicated regulator), new uController, some capacitors better placed close to the chips, etc...

No yet checked analog board.

.

ampsarus · 29th November 2007, 04:31 PM

I'd like to "modify" my DEQ so that it boots and works when I turn it on instead of seeing the flashing display and hearing relays doing an endless clicking cricket imitation. *sigh*

stef1777 · 29th November 2007, 05:18 PM

Quote:

Originally posted by ampsarus
I'd like to "modify" my DEQ so that it boots and works when I turn it on instead of seeing the flashing display and hearing relays doing an endless clicking cricket imitation. *sigh*

First check each voltages. Relays are powered with 5v.

ampsarus · 29th November 2007, 06:47 PM

Quote:

Originally posted by stef1777

First check each voltages. Relays are powered with 5v.

TY Stef!

sendler · 14th December 2007, 11:22 PM

I like the direct out mod.
http://mysite.verizon.net/vze4c5pt/id14.html
.

stef1777 · 15th December 2007, 01:54 PM

Quote:

Originally posted by sendler
I like the direct out mod.
http://mysite.verizon.net/vze4c5pt/id14.html
.

I added your link on my web site.

Below is a summarize of the changes found in the new DEQ v2.

On the DSP board:

- new specialized uController: an Analog Device ADSP-BF531 remplace the Triscend TAS04
- new SDRAM memory chips
- LM317 removed and replaced by a dedicated circuit close to the BF531. Seems to be SOT223 reg but not checked yet in detail. Ref printed on reg google nothing.
- crystals moved to a new location, better placement (shorter traces)
- complete new traces and ground plane (a lot better than old version)
- large smd coils on the 9v input

On the input/output analog board: nothing except RoHS. I hate new solders. Need to be clean-up a lot to solder something else.

On the switched mode psu: shielded box around the transformer

No more thermal adhesive on the connectors (good !!!)

AC input connector inverted.

More stickers and signs on the TOP (a real marketing tool for Behringer !!!).

Sound same apparently.

stef1777 · 29th January 2008, 02:22 PM

On my web pages, you will find new details on the capacitor modification. I added 2 tables with the use and replacement parts for each of the capacitors on the Analog Input/output and DSP boards.

http://www.awdiy.com/index.php?page=...-deq-caps-mods

.

Ryssen · 29th January 2008, 05:08 PM

Quote:

LM317 removed and replaced by a dedicated circuit close to the BF531. Seems to be SOT223 reg but not checked yet in detail. Ref printed on reg google nothing.

Would this work with a LT1763 2,5v?Different pinout ofcourse.

29th November 2007, 12:19 PM	#113
stef1777 diyAudio Member Join Date: Jun 2004 Location: Paris	I got a new DEQ2496 v2.4. it seems that the DSP board have been heavily modified. A first look show that crystals have been moved to another locations, LM317 to produce the digital 2.5v removed (and replaced by a dedicated regulator), new uController, some capacitors better placed close to the chips, etc... No yet checked analog board. . __________________ Vote for the DEQ2496 http://www.awdiy.com/

14th December 2007, 11:22 PM	#117
sendler diyAudio Member Join Date: Aug 2004 Location: ny	Deq2496 direct out mod I like the direct out mod. http://mysite.verizon.net/vze4c5pt/id14.html . __________________ Scott

29th January 2008, 02:22 PM	#119
stef1777 diyAudio Member Join Date: Jun 2004 Location: Paris	On my web pages, you will find new details on the capacitor modification. I added 2 tables with the use and replacement parts for each of the capacitors on the Analog Input/output and DSP boards. http://www.awdiy.com/index.php?page=...-deq-caps-mods . __________________ Vote for the DEQ2496 http://www.awdiy.com/

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16th July 2007, 11:09 PM	#111
ampsarus diyAudio Member Join Date: Aug 2003 Location: San Fernando Valley, CA	Fixed it with tape on the bottom of the chassis, same as in one of my DCX's. Tape can work wonders in shorty Behringer gear.

20th October 2007, 03:55 PM	#112
stef1777 diyAudio Member Join Date: Jun 2004 Location: Paris	Welcome to my new web site dedicated to the DEQ2496. http://www.awdiy.com/ Have fun! .

29th November 2007, 04:31 PM	#114
ampsarus diyAudio Member Join Date: Aug 2003 Location: San Fernando Valley, CA	I'd like to "modify" my DEQ so that it boots and works when I turn it on instead of seeing the flashing display and hearing relays doing an endless clicking cricket imitation. sigh

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