PCI Problem - no output from rear

Hi, I'd be most grateful if anyone can help me.
I have an old Sound Blaster PCI soundcard. Currently I have a set of 2.0 speakers hooked up from the Line Out (green) jack and have no problems with them.
I would like to run a second set of speakers from the Rear Out (black) jack to another room. But when I try to connect any powered speakers (even switching the existing line out speakers to the rear out) to the rear out there is no output whatsoever. The documentation that came with the card says that you should be able to run powered speakers from both the line out and rear out.
Am I missing something obvious?
Once again, thanks for any help in advance.

can you be more specific on what soundcard type you've...
i mean a old pci one are a lot...and what's old, a month or 6 yrs(3-pole or 4-pole on out2&3)...
more info needed of type.
p.s. 2nd &3th channels are with creative drivers effect channels , clear sound (or 2/0) is only on the line out. the 2 & 3 do have effects depending on setup(eax/dolby/ etc. etc.) and so it's not nice to listen to only 2nd(or 3th) channel when you're listen to music/movie. you can better take the rec out of the amplifier that's connected to the soundcard.
so something like:
soundcard lineout - linesignalwire - amplifier tape/in - amplifier tape/out - linesignalwire - amplifier tape/in - etc. etc..(loop amps by their ins & outs like tape/cassette -deck connections, see manual amps for setting switches correctly(LOL hardwareconfiguration of hifi). then you got in every room 2/0 stereo of your lineout.Message Edited by www_96KHz_tk on 05-3-2005 02:59 AM

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    Based on the output from 1-D interactive and the Read DAC.vi there is clearly a discrepancy.  Is it possible that the PCI-7352 is really operating around 0 as the zero velocity point, when 1-D and Read DAC seem to indicate otherwise?
    At this point it appears as though I'm going to have to manually see what the DAC is outputting, but without a breakout box I'm afraid I'm going to have to purchase a cable as a donor to slice and dice.
    Thanks for any help.
    -Derek

    Derek,
    that's strange behavior. In a closed loop system the controller's output value is defined by the characteristics of the plant. The Read DAC vi returns only the value that is sent to the DAC, but it doesn't measure the real voltage output. One chance is that there is something wrong with the DAC. E. g. I could think of an extremely high offset of -5 V or something like that. Here is an idea how to get a better understanding what's going on:
    Disconnect the C809 from the 7352.
    Configure the board for open loop stepper operation. This will unmap the DAC from the axis.
    Use Load DAC.vi to write a value directly to the DAC.
    Measure the voltage at the analog output. Depending on the cable that you are using, this might be a little bit tricky. If you can't do the measurement directly at the cable, you could ask your local NI branch if they could loan you an UMI-7764 and an SH68-C68-S cable.
    Please let me know how things are going. As the drive and the motor work fine with another controller, I don't think that the C809 has a problem. Stil I have good contacts to PI, so I could talk to them if required. 
    Another question: Have you tried the second axis on the 7352? Do you see the same issue with this axis?
    Thanks and kind regards,
    Jochen Klier
    National Instruments 

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