Compaq 210189-001 Compaq P710/P910/P1210 Color Monitor User's Guide - Page 21

ENGLISH 5 TROUBLESHOOTING Before calling your 1-800-OK-COMPAQ for service, please check that the items below are properly connected or set. In case of using a non-standard signal, please check the pin assignments and the signal timing of your computer with the specification outlined in Section 6. SPECIFICATIONS and Section 7. APPENDIX. PROBLEM ITEMS TO CHECK • Contrast and brightness controls. LED On (Green) LOCATION • Front No picture LED Off LED On (Amber) • Power switch. • AC power cord disconnected. • Signal cable disconnected. • Computer power switch. • Power management function is active. • Front • Rear • Rear • Computer • Press any key on the keyboard or move the mouse. The following message appeared. • Signal cable disconnected. • Computer power switch. • Power management function is active. • Rear • Computer • Press any key on the keyboard or move the mouse. The following message appeared. • Input signal frequency range is too high or too low for the ATTENTION SIGNAL FREQUENCY IS OUT OF RANGE. monitor to synchronize with. FH @ @24.8KHz FV @ 43.0Hz PLEASE CHANGE SIGNAL TIMING. • Check the specification of graphics adapter Abnormal picture Display is missing, center shifts, or too small or too large of a display size • Do "GEOMETRY-RESET" or "ALL RESET" for a standard signal. • Adjust HORIZ-SIZE, VERT-SIZE, HORIZ-PHASE, and VERT-POSITION with non-standard signals. • Monitor may not be able to get full-screen image depend on signal. In this case, please select other resolution, or other vertical refresh timing. • Make sure you wait a few seconds after adjusting the size of the image before changing or disconnecting the signal. • Front (OSD) • Front (OSD) Display is dark or • "VIDEO LEVEL" is not at the appropriate position for too bright your graphics adapter output. (0.7v or 1.0Vp-p). • Front (OSD) - 1 -