IBM System x3650 M4 BD Type 5466 Installation And Service Manual page 156

v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 5, "Parts listing," on page 153 to check if a component is a consumable, structural, or FRU part.
v If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
Symptom
The monitor has screen jitter, or
the screen image is wavy,
unreadable, rolling, or
distorted.
Wrong characters appear on the
screen.
140
System x3650 M4 BD Type 5466: Installation and Service Guide
Action
1. If the monitor self-tests show that the monitor is working correctly, consider
the location of the monitor. Magnetic fields around other devices (such as
transformers, appliances, fluorescents, and other monitors) can cause screen
jitter or wavy, unreadable, rolling, or distorted screen images. If this happens,
turn off the monitor.
Attention: Moving a color monitor while it is turned on might cause screen
discoloration.
Move the device and the monitor at least 305 mm (12 in.) apart, and turn on
the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the distance
between the monitor and any external diskette drive is at least 76 mm (3
in.).
b. Non-IBM monitor cables might cause unpredictable problems.
2. Reseat the monitor cable.
3. Replace the components listed in step 2 one at a time, in the order shown,
restarting the server each time:
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
d. (Trained technician only) System board.
1. If the wrong language is displayed, update the server firmware to the latest
level (see "Updating the firmware" on page 87) with the correct language.
2. Reseat the monitor cable.
3. Replace the components listed in step 2 one at a time, in the order shown,
restarting the server each time:
a. Monitor cable
b. Video adapter (if one is installed)
c. Monitor
d. (Trained technician only) System board.