XEN-PC 560 / 566 Video Configuration

More information on mach 32 video configuration can be found by consulting the MACH32.HLP file found in the Windows directory of you XEN-PC 560 / 566 system unit. This help file and others can also be found on the Insight CD release 4 or later.

The default video configuration for a new XEN-PC 560 / 566 system is 640x486. The method of changing display resolution is via the mach 32 FlexDesk Control Panel located in the mach Utilities Program Group. At time of manufacture it is not known which monitor is to be connected to the system after delivery, so all other display resolutions will be unavailable (greyed out). To enable other resolutions the power up configuration for the mach 32 video controller needs to be modified.

A standard configuration will contain a mach32 directory on the hard disk drive. Change directory to mach32, execute INSTALL.EXE, select Set Power-Up Configuration and then Monitor Type.

This option informs the video subsystem of the resolution and refresh rate capability of your monitor. A compatible monitor type must be chosen for the video subsystem to give you the best quality image your monitor can provide. If your monitor is listed in the Monitor Type menu, select it. If your monitor is not among those listed:

• Choose one that closely matches the resolution, frequency and refresh rate combination supported by your monitor (refer to the table below).
  
  
• The video subsystem directly supports these resolutions and refresh rates of the following monitors. Other monitors should be configured using Custom... options.

OR

• Select the Custom... option.

The install program creates custom monitor parameters with different resolution/refresh combinations. To use higher refresh rates, your monitor must be capable of supporting these higher vertical scan frequencies. Consult your monitor's manual for further information.

Warning: Using the wrong refresh rate (too high a frequency) may damage your monitor. The manufacturer will not be liable for any damage caused by incorrect settings. Consult your monitor manual to determine which refresh rates and resolutions are supported by your monitor.

The video subsystem supports different vertical refresh rates: up to 72Hz for 640x480 resolution; up to 76Hz for 800x600 and 1024x768; and up to 74Hz for 1280x1024. A higher refresh rate reduces screen flicker and therefore reduces eyestrain. Non-interlaced 60Hz and 66Hz refresh rates are also supported. Not all refresh rates are supported by all colour depths.

The resolution used by your software application is independent of the refresh rate. The refresh rate depends on the monitor selected during the configuration process. Resolution depends on the software driver installed and driver mode chosen.

To create a custom monitor configuration, start the install program and select:

1. Set Power-up Configuration and press ENTER
   
   
2. Monitor Type and press ENTER
   
   
3. Custom . . . and press ENTER
   Select each resolution you wish to use.
   Each resolution will be presented with a list of refresh rates, followed by an adjustment screen. Select the refresh rate that matches that of your monitor and press ENTER for the adjustment screen. Not all monitors support all resolutions and refresh rates.

Use the following steps to adjust the screen size and position:

1. If the screen displays anything other than the diagram above, select a different refresh rate; the one you have selected is not supported by your monitor. Press ESC to return to the Adjust Mode menu.
   Do not leave your screen in a scrambled state for extended periods of time; press ESC immediately to return to the Adjust Mode menu. Select a lower resolution or refresh rate if this occurs.
   
   
2. Press the H or V keys until the box on screen is the optimal size. On full range Multisync type monitors, this option has no effect.
   
   
3. Use the arrow keys to centre the screen.
   
   
4. If the size of the box requires further adjustments, use the > and < keys to change the horizontal size and the [ and ] keys to change the vertical size. Repeat step 3 to centre the image if necessary.
   
   
5. Press ENTER to accept the current screen setting or ESC to return to the Adjust Mode menu.
   
   
6. Repeat steps 1 to 5 for each resolution. Each resolution/mode must be configured separately. If a resolution is not supported on the monitor, it should be configured by selecting Not Supported.
   
   
7. After adjusting the desired resolutions/modes, press ESC and the following prompt is displayed, Is your Custom... (Y/N)? Press Y to accept your new custom configuration or press N to continue making adjustments to the custom monitor configuration.

The new configuration can be discarded by pressing ESC at the Set Power-Up Configuration menu and entering Y when the Discard Selected Power-Up...(Y/N)? prompt appears.

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