Compaq Deskpro EN Series Maintenance & Service Manual page 146

Printer will not turn on.
Prints garbled information.
Printer is off line.
Display
Problem
Screen is blank.
Graphics colors are wrong.
Characters are dim.
Monitor does not function
properly when used with
the energy saver features.
Blurry display or requested
resolution cannot be set.
The cables may not be connected properly. Reconnect all cables and
check the power cord and electrical outlet.
1. Correct printer drivers for the application are not installed. Install the
correct printer driver for the application.
2. Cables may not be connected properly. Reconnect all cables.
Printer may be out of paper. Check the paper tray and refill it if it is empty.
Select online.
Possible Solution
1. Monitor is not turned on and the monitor light is not on. Turn on the
monitor and check that the monitor light is on.
2. Screen save has been initiated. Press any key or move the mouse to
light the screen.
3. Check the cable connection from the monitor to the computer and
check the electrical outlet.
4. Brightness need adjusting. Adjust the brightness control.
5. QuickBlank feature has been enabled through Security Management.
Run Computer Setup and disable the QuickBlank feature.
6. Energy saver feature has been enabled. Hit any key or type the
password.
7. RGB (Red, Green, Blue) input switch on the back of the monitor is
incorrectly set. Set the monitor's input switch to 75 ohms and, if there
is a sync switch, set it to External.
8. If a fixed-sync monitor is used, be sure that the monitor can accept the
same sweep rate as the resolution chosen.
1. Ensure that the Red, Green, and Blue BNC cables are connected to the
corresponding monitor connectors.
2. Be sure the monitor's RGB inputs are set to 75 ohms.
1. Adjust the monitor's brightness and contrast controls.
2. Check that the video cable is securely connected to the graphics card
and monitor.
3. Set the RGB switch (and sync options, if available) to 75 ohms, with
the sync set to External. Refer to the documentation included with the
monitor.
Monitor without the energy saver feature is being used with energy saver
features enabled. Disable the monitor energy saver feature.
If the graphics controller was upgraded, the correct display drivers may not
be loaded. Install the correct display drivers on the diskette included in the
upgrade kit.
Compaq Deskpro EN Series, Small Form Factor and Net PC Models F-3