5
Section 4 - Troubleshooting
No picture, power indicators A, B, C off
• Check AC cord is plugged into outlet and monitor.
• Turn on the power switch.
No picture, power indicators A, B, C on.
• Check that video cable is connected completely.
• Adjust brightness and contrast controls.
• Turn the computer on.
No picture, power indicator A off, indicators B and C on.
• Monitor is in DPMS “SUSPEND” mode. Press a key or move the
mouse.
No picture, power indicators A and B off, indicator C on.
• Monitor is in DPMS “OFF” mode. Press a key or move the mouse.
Image is not centered
• Adjust Vertical Position and Horizontal Position controls.
Appendix A - Specifications
Picture Tube Size 14-inch diagonal
Dot pitch 0.28mm
Surface treatment Non-glare
Bandwidth 65MHz
Data Area 9.76 x 7.20 in.
Display mode
Mode Resolution V. Frequency H. Frequency
VGA I 640 x 350 70 Hz 31.47 KHz
VGA I 640 x 400 70 Hz 31.47 KHz
VGA I 640 x 480 60 Hz 31.47 KHz
VGA II 640 x 350 84 Hz 37.86 KHz
VGA II 640 x 400 84 Hz 37.86 KHz
VGA II 640 x 480 72 Hz 37.86 KHz
SVGA 800 x 600 60 Hz 37.88 KHz
SVGA 800 x 600 72 Hz 48.09 KHz
Ultra VGA 1024 x 768 60 Hz 48.37 KHz
Synchronization Horizontal: 30-50 KHz
Vertical: 50-90 Hz
Deflection
Geometric distortion H.<=2.5mm, V.<=2.5mm
Linearity distortion H<=10%, V<=8%
