ViewSonic PT775 User Guide - Page 14

Troubleshooting No power • Make sure front Power button (or switch) is ON. • Make sure A/C power cord is securely connected to back of monitor and to a power outlet. • Plug another electrical device (like a radio) into power outlet to verify that outlet is supplying proper voltage. Power on but no screen image • Make sure video cable supplied with monitor is tightly secured to video output port on back of computer. If other end of video cable is not attached permanently to monitor, tightly secure it to monitor. • Adjust brightness and contrast. • Check this user's guide to see if an adapter is required for proper signal continuity between graphics card and monitor. Flickering • Not enough power supplied. Connect monitor to different outlet. If using surge protector, reduce number of devices plugged in. ® iSpecifcalion • chghtr Check Se ViewMeter to verify refresh Tw[2c-0.06sv21.1(lr)-14.6(wtcal dfequiency) is O5 3Hz • Make sure fgw[2c-hics card ain y34.7(eourcomputer)carnusernotn-ntormlace mone tt ViewSonic PT775 Other Information 13