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Comments for E-MU 0404 USB mod wiki

Current Discussion: Main discussion

  1.   #1
    1audio's Avatar
    diyAudio Member
    A few issues around this and the 0202 and Tracker Pre- first the Windows driver has not been changed since 2008 and doesn't work properly with Windows 7 (so far). Second, they seem to have constrained the digital output to a max of 96K with no obvious reason why. I don't have an 0404 so I can't test to see what happens at the 176 and 192 sample rates.
    There is support in Linux/ALSA for the EMU usb cards, and I expect it will be more stable than EMU's drivers are reputed to be.

    I hope worthwhile imporvements can be made since these are available and reasonably priced.
    __________________
    Demian Martin
    Product Design Services
     
  2.   #2
    Banned
    see
    [url=http://www.audiodesignguide.com/HiResolution/EMU0404/index.html]Hi-Resolution System Intro + 192KHz 24bit[/url]
     
  3.   #3
    1audio's Avatar
    diyAudio Member
    I had more success with the Windows driver on Win 7 when I figured out that there are several places to set the sample rate. The whole think is really kludgey compared to XP.

    However the 0404 specs say the max sample rate from the digital outputs is 96K (not the 192K possible internally). modifying the power supplies will help a lot since the internal clocks are sensitive to noise.
    __________________
    Demian Martin
    Product Design Services
     
  4.   #4
    dtk669's Avatar
    diyAudio Member
    Hello everybody!
    Need Help!
    I have an EMU 0404. I put power supply 19VDC for the EMU 0404 and the results are a visual IC U10 (TPS61040=PHOI) was burned black.
    In my country, i can't buy U10 IC because i don't know how to do.
    Please, show me how to repair it.
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  5.   #5
    Banned
    last info and measurements

    [url=http://www.audiodesignguide.com/HiResolution/EMU0404/index.html]Hi-Resolution System 192KHz 24bit with EMU 0404 USB[/url]
     
  6.   #6
    iko's Avatar
    iko is offline
    diyAudio Moderator
    [QUOTE=dtk669;2261352]Hello everybody!
    Need Help!
    I have an EMU 0404. I put power supply 19VDC for the EMU 0404 and the results are a visual IC U10 (TPS61040=PHOI) was burned black.
    In my country, i can't buy U10 IC because i don't know how to do.
    Please, show me how to repair it.[/QUOTE]

    There is absolutely no need to replace the stock 5V smps, as anyway there are a number of smps converters inside the board that will get higher and negative voltages out of the 5V.

    In any case, replace U10 and the supporting resistors around it (possibly there will be some capacitors there too). Check the parts leading to U10 and after it too.
     
  7.   #7
    dtk669's Avatar
    diyAudio Member
    Hi ikoflexer
    Thank's for help!
    But please help me, how to remove the 48V amplifier (I do not need Mic / Hi-Z / Line Inputs) but still use emu0404 with USB or S/PDIF
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  8.   #8
    lwif's Avatar
    diyAudio Member
    Hi,

    I would be very interested to see photos of the pcb in the article. It will ease understanding and help choosing this platform for mods.
    I am thinking of removing all regulators and replace them by good ones, that is no switching regulators. It should be even possible to put batteries for some portions (li po seems to be the buzz).
    Can we see the clock ? Is it possible to uprgade it with good ones ?
    Thanks for your work and attention.

    Lwi.
     
  9.   #9
    hallom's Avatar
    diyAudio Member
    Hey Guys,

    I bought an E-MU 0404 usb, and I want to mod it, but, I I'm not an electrician kinda person, let's say total noob, don't have the knowledge for it. So, is there anyone, who would do that for me for some bucks? I live in London by the way.

    Thanks in advance,

    Zoltan

    neoyoli at gmail dot com
     
  10.   #10
    hallom's Avatar
    diyAudio Member
    Hey Guys,

    I bought an E-MU 0404 usb, and I want to mod it, but, I I'm not an electrician kinda person, let's say total noob, don't have the knowledge for it. So, is there anyone, who would do that for me for some bucks? I live in London by the way.

    Thanks in advance,

    Zoltan

    neoyoli at gmail dot com
     
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