Digital Equipment DEC 3000 600 AXP, Service Information

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Troubleshooting Tables
Table 10–11 Mouse Problems
Symptom Possible Cause Corrective Action
The system boots, but
the mouse or optional
tablet pointer does not
appear on the screen,
or the monitor does
not respond to pointing
device commands. The pointing device cable
is installed incorrectly or
is loose. Turn off the system. Reseat the
cable. Turn on the system.
The system is halted.
The pointer does not
appear on the screen. If in console mode (>>>), boot
the system.
The pointer does not
appear on screen or does
not respond. Pointer mode is disabled. Press
Ctrl F3
to enable the
pointer.
Keyboard
Problems Table 10–12 describes keyboard problems. If the corrective
actions do not correct a problem:
1. Verify that all cable connections are correct and secure.
2. If the connections are okay, run the SCC diagnostics
(Chapter 9).
Table 10–12 Keyboard Problems
Symptom Possible Cause Corrective Action
System does not respond
when keys are pressed. The
Hold Screen
key is
active. The hold screen
light on the keyboard is
on.
Press the
Hold Screen
key to
release the screen display.
The keyboard cable is
loose or disconnected. Check the keyboard cable
connection at both ends.
Drive Problems Table 10–13 describes drive problems. If the corrective actions
do not correct a problem:
1. Verify that all cable connections are correct and secure.
10–15