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Thread: DSX12VD power issues

  1. #1
    One Sharp Cheddar ThunderStick's Avatar
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    DSX12VD power issues

    I recently purchased a DSX12VD from mp3car.com It worked fine then it blew my motherboard. I suspect the PSU anyway, nothing else changed. Then I went to try it again on a different PC and no power. just wondering what might be wrong with this thing. I checked the fuse and it is fine. I checked power at the fuse and I get 12v. I checked power at the power header molex connector and I get nothing. accessory wires it powered and connected right. still nothing. Turned the count down timer (p1) all the way down and still I get nothing.
    Any help is appreciated.
    Thanks
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  2. #2
    FLAC
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    Quote Originally Posted by ThunderStick View Post
    I recently purchased a DSX12VD from mp3car.com It worked fine then it blew my motherboard. I suspect the PSU anyway, nothing else changed. Then I went to try it again on a different PC and no power. just wondering what might be wrong with this thing. I checked the fuse and it is fine. I checked power at the fuse and I get 12v. I checked power at the power header molex connector and I get nothing. accessory wires it powered and connected right. still nothing. Turned the count down timer (p1) all the way down and still I get nothing.
    Any help is appreciated.
    Thanks

    Measure the voltage at VIN and ACC, make sure both are 12 volts.

    Make sure you have a good ground.

    Make Sure P2 is turned all the way counter clockwise (don't over turn).

    Do you get an LED? Any blink codes?
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  3. #3
    One Sharp Cheddar ThunderStick's Avatar
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    I checked all the voltages, acc = 12v vin = 12v ground = good
    no blink codes.
    Just turned p2 all the way counter clockwise. Still nothing.
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  4. #4
    FLAC
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    Quote Originally Posted by ThunderStick View Post
    I checked all the voltages, acc = 12v vin = 12v ground = good
    no blink codes.
    Just turned p2 all the way counter clockwise. Still nothing.


    Can you think of anything you might of done to the the unit? Did you have stray wires floating around or anything? Can you take a picture of the setup? You have disconnected everything and let the unit completely power down right?

    Do you have a volt meter? I can give you some probe points..

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  5. #5
    One Sharp Cheddar ThunderStick's Avatar
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    I removed the white molex connector and soldered the wires direct. That is the only change I made to the unit. The reason I did that is becuase the molex connectors were to big and wouldnt fit in my case as is.
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  6. #6
    One Sharp Cheddar ThunderStick's Avatar
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    FRONT OF PSU


    FRONT OF WHOLE PSU


    Back of PSU


    I did use RTV to secure it to the computer case. Inbetween the psu and the case I but cardboard to prevent any shorting. That is what you see in the pic.

    Yes the RTV was completely dry before I powered it up. I waited nearly 24hours.
    Any ideas for me.

    Probe points would be helpfull
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  7. #7
    One Sharp Cheddar ThunderStick's Avatar
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    Anyone have ideas on what went wrong?
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  8. #8
    FLAC
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    Quote Originally Posted by ThunderStick View Post
    Anyone have ideas on what went wrong?
    Try probing Pin JP1 A1 See if there is 5 volts there when ACC and VIN have 12 volts on them.

    Sounds like the microcontroller got fried somehow if you don't get the LED to turn on. Did anything short to J2 or JP1?
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  9. #9
    One Sharp Cheddar ThunderStick's Avatar
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    the only thing I had connected on jp1 was the motherboard on switch.

    mp3car told me to send it back, so i am
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  10. #10
    Variable Bitrate
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    Did you ever figure this out? Are you still using the dsx12v?

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