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Thread: PS problem (MSRB1)

  1. #1
    Variable Bitrate
    Join Date
    Mar 2002
    Location
    Long Island, NY
    Posts
    334

    PS problem (MPBS)

    Having a specific problem with my power supply. Basically the system wont boot up at all. The LCD just flickers endlessly, as if it were struggling for a constant signal. when I use a regular AC-DC PS from the wall socket everything boots up and works perfectly inside the car. I checked the voltage from my power source and its a constant 14V. Any ideas?

    Grand AMplifier Project 1.0:
    http://drive.to/cliffsgrandamgt/
    http://www.astallaslions.com/carmp3/
    --------------------------------
    -Eden 800 mini-itx motherboard
    -5.6 NTSC TFT-LCD
    -80 gig hard drive
    -128 MB RAM
    -MPBS1 DC-DC PSU
    -PB Remote /w Girder
    -Media Engine & Windows XP
    -Playstation II also added
    -Steering Wheel Buttons modified for Control.


  2. #2
    Variable Bitrate
    Join Date
    Mar 2002
    Location
    Long Island, NY
    Posts
    334
    *bump* anyone? I tryed messing with the grounds making sure they were clean from the battery through a filter.. didn't really help. If it helps when I look at the light on my USB Sound Device its actually flickering at the same rate as the screen is, as if it weren't getting constant power, but like I said the 12V in wire is getting a constant 14V says my voltmeter. Is the PSU shot?

    Grand AMplifier Project 1.0:
    http://drive.to/cliffsgrandamgt/
    http://www.astallaslions.com/carmp3/
    --------------------------------
    -Eden 800 mini-itx motherboard
    -5.6 NTSC TFT-LCD
    -80 gig hard drive
    -128 MB RAM
    -MPBS1 DC-DC PSU
    -PB Remote /w Girder
    -Media Engine & Windows XP
    -Playstation II also added
    -Steering Wheel Buttons modified for Control.


  3. #3
    FLAC
    Join Date
    Apr 2001
    Location
    Portland OR
    Posts
    1,244
    Quote Originally Posted by Cliff
    *bump* anyone? I tryed messing with the grounds making sure they were clean from the battery through a filter.. didn't really help. If it helps when I look at the light on my USB Sound Device its actually flickering at the same rate as the screen is, as if it weren't getting constant power, but like I said the 12V in wire is getting a constant 14V says my voltmeter. Is the PSU shot?

    What all are you powering with the PSU? How do you have the display wired?
    How do you have your grounding and how do you have the PSU connected to the battery?
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  4. #4
    FLAC
    Join Date
    Apr 2001
    Location
    Portland OR
    Posts
    1,244
    Quote Originally Posted by zootjeff
    What all are you powering with the PSU? How do you have the display wired?
    How do you have your grounding and how do you have the PSU connected to the battery?

    Is your power souce a battery or some kind of AC to DC regulator that puts out 14 volt?
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

  5. #5
    Variable Bitrate
    Join Date
    Mar 2002
    Location
    Long Island, NY
    Posts
    334
    Quote Originally Posted by zootjeff
    What all are you powering with the PSU? How do you have the display wired?
    How do you have your grounding and how do you have the PSU connected to the battery?
    I have the display wired from the fuse box. Like I said, when I used an AC PSU with the same display wired the same way there was no clipping. The PSU is wired straight from the battery, with no regulation devices in circuit. The Ground is straight from the battery as well. I tryed putting a ground filter in circuit from radioshack which does wonders for the audio, did nothing for my display. I used your PSU fine this way for a long time, until I blew the fuse on it, replaced it, and now its like this.

    Grand AMplifier Project 1.0:
    http://drive.to/cliffsgrandamgt/
    http://www.astallaslions.com/carmp3/
    --------------------------------
    -Eden 800 mini-itx motherboard
    -5.6 NTSC TFT-LCD
    -80 gig hard drive
    -128 MB RAM
    -MPBS1 DC-DC PSU
    -PB Remote /w Girder
    -Media Engine & Windows XP
    -Playstation II also added
    -Steering Wheel Buttons modified for Control.


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