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Solving Problems 121
Basic Checks:
• Run the monitor self-test as instructed in the monitor user’s guide.
• Connect the monitor power cable directly to an electrical outlet to
ensure that the monitor turns on. Do not connect it to a power
protection device, UPS, power strip, or extension cord.
• Ensure that the monitor power cable is firmly connected, verifying
that the power cable is adequately connected at the monitor and to
the electrical outlet.
• Swap the power cables between the computer and the monitor to see
whether the problem symptoms change.
• If the monitor display is blank, the computer may be in suspended, or
hibernate, state. Push and release the power button, move the mouse,
or press a key on the keyboard to bring the computer out of the
suspended state.
• Disconnect the monitor interface cable from the computer and check
the cable connector for bent or broken pins. Check for damaged or
frayed cables.
• If the monitor interface cable is not damaged, ensure that it is firmly
connected to the computer.
• Adjust brightness and contrast settings on the monitor.
If the problem still exists after you complete the basic checks, fill out the
Diagnostics Checklist as you perform the following steps:
1 Turn off the computer, wait at least 30 seconds, and then turn the
computer back on.
Monitor Indicator Codes
Monitor Indicator Code Cause
Solid green Power is on, and the monitor is receiving video input
from the computer. The system is operating normally.
Solid yellow Power is on, but the monitor is not receiving video
input from the computer.