VIEWSONIC PT775 - Manual (Page 14)

13 ViewSonic PT775 Other Information
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.
• Check ViewMeter ® to verify refresh Tw[2c-0.06sv21.1(lr)-14.6(wtcal dfequiency) is O5 3Hz o chghtr Se iSpecifcalion
• Make sure fgw[2c-hics card ain y34.7(eourcomputer)carnusernotn-ntormlace mone tt