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HP 5190 flatbed scanner service info

Discussion in 'Electronic Repair' started by [email protected], Mar 3, 2007.

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  1. Guest

    does anyone have any service info for this scanner - schematics -
    HP 5190 flatbed scanner service info - goes by model 5100cse

    it has 3 voltages from power supply - all of which are ~10% low -
    5v = 4.5v
    12v - 10.8v
    24v = 22.1v

    when powered on scan light flashes once.
    when connected to computer - WinXP - nothing is recognized.

    tried reloading s/w & drivers - but computer doesn't see connection
    no new hardware found message.
    no imaging device in hardware manager.

    was working - just stopped.

    seems like parallel port busy line is active.
    all other ports appear to have correct logic level at idle.

    xtal oscillators appear to be running
    uses a Motorola 6811 processor.

    I have disconnected and reconnected all connectors and one plug in IC

    thanks for your help
  2. Does WinXP support parallel port scanning?
  3. Guest

    I guess it must,

    "it was working, just stopped"
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