EMU 1212 schematic and mods help - diyAudio
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Old 16th March 2008, 04:17 AM   #1
diyAudio Member
Join Date: Mar 2008
Default EMU 1212 schematic and mods help

Hi guys,

I have an EMU 1212M sound card outputting a S/PDIF signal via coax to the SFD-2 dac. I have done a bit of reading about this card and some people have upgraded the pulse transformer, caps and adjusted the output to true 75ohm. My questions are:

1) does anyone have a schematic for this card?

2) Does anyone know what parts would be good to use? Pulse transformer? Caps?

3) How to set the output to true 75ohm?

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Old 16th March 2008, 03:11 PM   #2
sangram is offline sangram  India
diyAudio Member
Join Date: Sep 2002
Location: India
Most of the guys around here are using analog out - these mods apply more to the analog board:

E-MU 1212M Sound Card Thread

Post #9 in this thread has some more detail on digital, maybe you can email foo directly:

Emu 1212m mods?
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Old 16th March 2008, 11:49 PM   #3
diyAudio Member
Join Date: Mar 2008
Thanks for the info Sangram. The post by foo does look to be along the lines of what I need. Unfortunately as I have only recently joined, I can't send any emails to other members .

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Old 27th April 2013, 10:41 PM   #4
diyAudio Member
Join Date: Jul 2012
I looking to schematic for Emu 1820M. I have modified the phantom input and the quality improved.
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