------------------------------------------- Using VCHAD with the T5200C Color LCD Panel ------------------------------------------- A few applications do not display images in the same colors on the color LCD panel as on a CRT display. When using such an application you can adjust the display colors using the VCHAD command. VCHAD.EXE can be found on the Companion Diskette. There are two modes for running the VCHAD command to adjust the display colors. See Procedure A for applications that permit you to activate a VCHAD window by pressing Alt+PrintScreen (SysReq). See Procedure B for Microsoft Windows and Flight Simulator which do not allow you to activate VCHAD normally. For more details on how to use VCHAD command, refer to "VCHAD" in your computer's reference manual. [Procedure A.] Adjusting the display colors for applications which allow the VCHAD window to be opened. Before starting your application, enter "VCHAD" at the MS-DOS prompt to load VCHAD into memory. VCHAD consumes about 38,000 bytes of memory when loaded. You may want to load VCHAD into an Upper Memory Block (above 640K) using a 386 Expanded Memory Manager such as EMM386. Please refer to your MS-DOS User's Manual for more information on how to use EMM386 to load VCHAD and other Terminate and Stay Resident (TSR) programs into this memory area. After VCHAD has been loaded you should run your application, and press Alt+PrintScreen (SysReq), to pop the VCHAD window onto the screen. You can then modify the colors by changing the VCHAD level using the arrow keys. The relationship between the VCHAD levels and the display colors on the color LCD panel is shown below. VCHAD Levels and Color LCD Display Colors Level Color LCD Display Colors Level Color LCD Display Colors ----- ------------------------ ----- ------------------------ 0 Black 8 Cyan 1 Blue 9 Light Red 2 Red 10 Light Magenta 3 Magenta 11 White 4 Gray 12 Light Green 5 Green 13 Light Cyan 6 Brown 14 Yellow 7 Light Blue 15 Intense White You may also wish to set the VCHAD setting back to a standard setting after exiting from your software. Do this by typing: VCHAD /C:0 (Type "VCHAD /C:1" if you have selected "Plasma Gray Scale: Normal as Bright - Intensity as Semi-bright" with TEST3.) [Procedure B.] Adjusting the display colors for applications that do not allow the VCHAD window to be opened. Some applications take full control of the keyboard. In other words, the application intercepts all keyboard commands and doesn't pass them to the memory-resident programs you've loaded. Microsoft Windows and Flight Simulator are examples of software that control the keyboard in this way. This prevents you from using the VCHAD window. You can adjust the display colors of Windows and Flight Simulator automatically using the files WIN3.CLR (for Windows) and FS.CLR (for Flight Simulator) stored on the Companion Diskette. To do this, enter "VCHAD /R:filename" at the MS-DOS prompt. Example: Using Windows 1. Make sure you have logged onto the disk and into the directory containing VCHAD.EXE and the WIN3.CLR data file. 2. At the MS-DOS prompt, type: VCHAD /R:WIN3.CLR 3. Press Enter. To run the Windows or Flight Simulator program with the file named WIN3.CLR or FS.CLR every time you start the computer, create a batch file that uses the command form of VCHAD, and then load the application software. The batch file loads the color level setting for Windows or Flight Simulator, automatically, each time. Your batch file must include at least two lines: VCHAD /R:filename application command where "filename" is 'WIN3.CLR' or 'FS.CLR' and "application command" is 'WIN' or 'FS' to invoke the application. You may also wish to set the VCHAD setting back to a standard setting after exiting from your software. Do this by typing: VCHAD /C:0 (Type "VCHAD /C:1" if you have selected "Plasma Gray Scale: Normal as Bright - Intensity as Semi-Bright" with TEST3.) You may want to add the appropriate version of this line to your batch file. *Trademarks Microsoft Windows, Flight Simulator, and MS-DOS are registered trademarks of the Microsoft Corporation.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
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Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
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