TITLE
    PowerBook G3: Video Out Specifications
Article ID:
Created:
Modified: 		24232
11/21/97
10/15/99
TOPIC

    This article describes the PowerBook G3 built-in video out specifications.

DISCUSSION

    Note: Macintosh PowerBook G3 Series computers should not be confused with Macintosh PowerBook G3 computers. Though the names are similar, there are significant differences. For more information differentiating between the computers, please see the following Tech Info Library article:

    Article 24604: " PowerBook G3 & G3 Series: Identifying Different Models "

    The PowerBook G3 computer has a VGA connector built into the backplane for an external video monitor. The connector is standard DB9/15 for use with VGA or SVGA monitors.

    You can connect a VGA or SVGA monitor all the way up to a 21" monitor with 1024 x 768 resolution projected in thousands of colors (16-bit). Video projection devices can also be attached via the VGA connector.

    Video Adapter
    An optional video adapter allows the user to connect a standard Apple video cable to the computer. The adapter is identical to that shipped with PowerBook 2400 and 3400 series systems. The adapter is black and enables the PowerBook G3 computer to recognize a wider range of monitor types. The Apple part number for the new adapter is 590-0289-A.

    Video RAM
    The PowerBook G3 ships with 2MB of VRAM which enables it to support up to 24 bits per pixel on most monitors.

    NOTE: The video RAM (VRAM) is not upgradeable.

    Video Mirroring
    There is no video mirroring control panel/strip. If the external monitor can display 800 by 600 pixels at 60 Hz, the PowerBook G3 computer can display simultaneously on both the external monitor and the flat panel display. This mode of display, called Simulscan, provides the same information on both displays.

    Examples: When connected to a 17" Multiscan monitor:
    • 640x480 67Hz - Millions of colors (external monitor available only)
    • 800x600 60Hz - Thousands of colors (Simulscan "Mirroring")
    • 800x600 75Hz - Millions of colors (external monitor available only)
    • 832x624 75Hz - Millions of colors (external monitor available only)
    • 1024x768 75Hz - Thousands of colors (external monitor available only)
    Important Information About Using an External Monitor

    If you connect an external monitor to your PowerBook G3 and it remains black, you can try the following: While holding down the Control Key, click on the Monitors Resolution Control Strip module. A list of all the supported resolutions will be shown. You can click on the appropriate resolution for your monitor and the PowerBook G3 will start displaying video on it. If you use this procedure, you will need to repeat it once you shut down or put the PowerBook to sleep. Please consult your monitor specifications in order to decide which resolution is the most appropriate.


    Monitor Pixel Depths

    The following table lists the pixel depths supported for each type of monitor.
    Monitor Pixel Depths
    Monitor type
    Resolution
    Bits per pixel
    12-inch color
    512 by 384
    8, 16, 24
    12-inch monochrome
    640 by 480
    8, 16, 24
    13-inch and 14-inch color
    640 by 480
    8, 16, 24
    VGA and SVGA (1)
    640 by 480
    8, 16, 24
    SVGA
    800 by 600
    8, 16, 24
    SVGA
    1024 by 768
    8, 16
    Full-page monochrome
    640 by 870
    8
    Full-page color
    640 by 870
    8, 16
    16-inch color
    832 by 624
    8, 16, 24
    Apple 15-inch multiple scan
    640 by 480
    8, 16, 24
    Apple 15-inch multiple scan
    800 by 600
    8, 16, 24
    Apple 15-inch multiple scan
    832 by 624
    8, 16, 24
    Apple 17-inch multiple scan
    640 by 480
    8, 16, 24
    Apple 17-inch multiple scan
    800 by 600
    8, 16, 24
    Apple 17-inch multiple scan
    832 by 624
    8, 16, 24
    Apple 17-inch multiple scan
    1024 by 768
    8, 16
    Apple 20-inch multiple scan
    640 by 480
    8, 16, 24
    Apple 20-inch multiple scan
    800 by 600
    8, 16, 24
    Apple 20-inch multiple scan
    832 by 624
    8, 16, 24
    Apple 20-inch multiple scan
    1024 by 768
    8, 16
    NTSC TV monitor (1, 2)
    512 by 384
    8, 16, 24
    NTSC TV monitor (2)
    640 by 480
    8, 16, 24
    PAL TV monitor (1, 2)
    640 by 480
    8, 16, 24
    PAL TV monitor (2)
    768 by 576
    8, 16, 24


    Table Notes
    1
    		Indicates the startup resolution for non-multiple scan monitors. Other resolutions can be selected using the Monitors control panel or the control strip.
    2
    		Requires Apple Presentation System (M2895LL/A) or similar adaptor.
    -
    		When connected to a non-multiscan monitor you will only get the external monitor at the set resolution.
    Example: Apple 16-inch monitor, 832 by 624 at 75Hz - Thousands of colors

    Apple Presentation System (M2895LL/A)
    The Apple Presentation System makes it easy for you to create a presentation on your Macintosh, then display it to an audience on a larger television screen exactly as it appears on your Macintosh display. You can also connect your Macintosh to a VCR and record your presentation on videotape for easy and inexpensive distribution. The Apple Presentation System comes with software, cables, and video converter box. Unlike the Apple Video and Apple Video/TV systems, the Apple Presentation System can be used with any Macintosh that has a VGA or Apple 13/14-inch RGB output. This list includes, but is not limited to, any PowerBook with VGA or Apple 13/14-inch RGB output, Macintosh LC, Performa 400-600 models, Centris, Quadra, or other Macintosh systems with VGA video out.

Document Information
Product Area: Computers
Category: PowerBook
Sub Category: PowerBook G3

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