IBM P77 Operating Instructions Manual page 14

Symptom
Letters and lines show red or blue
shadows at the edges
Monitor buttons do not operate
A hum is heard right after the
power is turned on
* If a second degauss cycle is needed, allow a minimum interval of 20 minutes for the best result. A humming noise may be heard, but this is not a
malfunction.
Displaying this monitor's name, serial number,
and date of manufacture.
While the monitor is receiving a video signal, press and hold the
button for more than five seconds to display this monitor's
information box.
Example
b
Check these items
• Adjust the convergence (page 8).
• If the control lock is set to ON, set it to OFF (page 9).
• This is the sound of the auto-degauss cycle. When the power is turned on, the monitor is
automatically degaussed for five seconds.
I NFORMA T I ON
MODE L : I BM - P 7 7
SER NO : 1 2 - 3 4 5 6 7
MANUF ACTURED : 2 0 0 1 - 0 5
If the problem persists, call your authorized technical support and
give the following information.
• Model name: P77
• Serial number
• Name and specifications of your computer and graphics board.
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