4-11
Compaq Professional Workstation AP200 Maintenance and Service Guide
Solutions for Display Problems
Continued
Problem
Possible Solution
The picture is broken up; it rolls, jitters,
or blinks.
1. Be sure the monitor cable is securely connected to the
computer.
2. In a 2-monitor system or if another monitor is in close
proximity, the monitors may interfere with each other’s
magnetic field. Move them farther apart.
Screen goes blank.
A screen blanking utility may be installed or energy
saver features are enabled. Press any key or type
password. Wait a few seconds for the screen to
become active.
Monitor overheats.
There is not enough ventilation space for proper
airflow. Leave at least 3 inches (7.6 cm) of ventilation
space. Also, be sure there is nothing on top of the
monitor to obstruct air flow.
Cursor will not move using the
arrow keys on the numeric keypad.
The Num Lock key is on. Press the Num Lock key. The
Num Lock light should not be on when you want to use
the arrow keys.
Printer Problems
This section identifies some quick checks for printer-related problems.
Table 4-5
Solutions for Printer Problems
Problem
Possible Solution
Printer will not print.
1. Printer is not turned on and online. Turn the printer on
and be sure it is online.
2. The correct printer drivers for the application are not
installed. Install the correct printer drivers for the
application.
3. If the workstation is on a network, you may not have
made the connection to the printer. Make the proper
network connections to the printer.
Printer will not turn on.
The cables may not be connected properly. Reconnect
all cables and check the power cord and grounded AC
outlet.
Prints garbled information.
1. The correct printer drivers for the application are not
installed. Install the correct printer driver for the
application.
2. The cables may not be connected properly. Reconnect
all cables.
Printer is off line.
The printer may be out of paper. Check the paper tray
and refill it if it is empty. Select online.
