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PowerBook 190 external video question - Mac Portable

Hi all, I just received a used Apple video card for the PowerBook 190/5300 which should allow me to hook up an external color monitor and display at least in 8 bit color (256 colors), but after installing it and hooking up various Apple Mac monitors (AppleColor High-Resolution RGB Monitor, AppleColor Plus 14" Disply, Apple 14" Multiscan, and Sony 15" multiscan with Mac video adapter), I get nadda on each of these displays via the PowerBook 190 video out jack, using the supplied Apple PowerBook to Mac video cable adapter. All four monitors work just fine on my various 68040 ...

  1. #1

    Default PowerBook 190 external video question

    Hi all,

    I just received a used Apple video card for the PowerBook 190/5300 which
    should allow me to hook up an external color monitor and display at least
    in 8 bit color (256 colors), but after installing it and hooking up
    various Apple Mac monitors (AppleColor High-Resolution RGB Monitor,
    AppleColor Plus 14" Disply, Apple 14" Multiscan, and Sony 15" multiscan
    with Mac video adapter), I get nadda on each of these displays via the
    PowerBook 190 video out jack, using the supplied Apple PowerBook to Mac
    video cable adapter.

    All four monitors work just fine on my various 68040 and PowerMac G1 an G3
    systems.

    Do I need some type of system extension to use this PowerBook video card?

    I've got the PowerBook 190 running Mac OS 7.5.2 (the OS which came with
    it) and neither the Monitors Control Panel nor the PowerBook Display
    control panel seem to detect this video card (ie. no mirroring allowed in
    the PB Display control panel, no second display available in the Monitors
    control panel).

    The Apple PB > Mac video cable adapter looks to be in mint condition, so
    I'm guessing the video card is toasted for some reason.

    Can I hook up my digital multimeter to test for power (or lack of) or
    signals coming through off the video board and cable?

    Any tips or suggestions?

    regards, Perry
    Perry Guest

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    Default Re: PowerBook 190 external video question

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