ViewSonic G800 User Guide - Page 22

DDC™ Diagnostic Utility For IBM PC's and compatibles The ViewSonic G800 uses DDC (Display Data Channel) protocol to communicate with your computer's video card. The software diskette or CD ROM included in the ViewSonic G800 package has a utility file called DDCTEST.EXE. This utility is useful for troubleshooting if DDC-related problems occur when using Windows® 3.1 or Windows® 95. When you run the DDC Diagnostic Utility, one of two messages will appear: 1. If the utility detects that DDC is functioning, the following appears: ViewSonic/Optiquest Plug & Play monitor: G800 successfully detected. Hit any key to read and decode the EDID information...(ESC to exit) If you hit a key, you will see information about the monitor. This information is a table of EDID codes (Extended Display Identification) and an explanation of the codes. Press ESC to exit, then: a. Check if DDC is enabled in Windows. Refer to the README.TXT file on the ViewSonic® diskette for instructions on how to enable DDC in Windows. b. Install the ViewSonic MONITOR.INF file included on the ViewSonic diskette. It is titled VSdatecode.inf, with the date code in year/month/ day. Refer to the README.TXT file on the ViewSonic diskette for installation instructions. If Plug & Play still does not work after you have followed the procedure above, call ViewSonic Customer Support. 2. If the utility detects that DDC is not functioning, the following appears: ViewSonic/Optiquest Plug & Play monitor was not detected Exit the utility. Turn the monitor off. Wait ten seconds and turn the monitor on. Try the DDC Diagnostic Utility again. If you still receive the message that the monitor was not detected: a. Check your computer or graphics board manufacturer's user's guide to see if your graphics system is DDC compatible. b. Check the video cable connector for bent or broken pins. c. Refer to the README.TXT file troubleshooting section (included on the ViewSonic diskette). If the procedure above does not work, call ViewSonic Customer Support. 14 Operation ViewSonic G800