What to do if my Compaq Monitor has no picture?
If your Compaq monitor displays no picture, try the following: ensure the contrast and brightness controls are properly adjusted. Check the power switch and make sure the AC power cord is securely connected. Verify the signal cable is connected, the computer power switch is on, and that the power management function is not active.
Why does my Compaq P1210 Monitor display 'AATTTTEENNTTIIOONN SSIIGGNNAALL FFRREEQQUUEENNCCYY IISS OOUUTT OOFF RRAANNGGEE'?
This message on your Compaq monitor indicates that the input signal frequency range is too high or too low for the monitor to synchronize with. Check the specification of your graphics adapter to ensure it is compatible with the monitor's supported frequencies.
General| Maximum Resolution | 1600 x 1200 |
|---|---|
| Aspect Ratio | 4:3 |
| Display Type | CRT |
| Connectivity | VGA |
| Dot Pitch | 0.24 mm |
| Vertical Refresh Rate | 50-160 Hz |
| Input Signal | Analog RGB |
| Refresh Rate | 85 Hz |
| Max Resolution/Refresh Rate | 1600 x 1200 @ 85 Hz |
| Horizontal Refresh Rate | 30 - 95 kHz |
| Input Connectors | 15-pin D-sub |
| Screen Size | 21 in |
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