DEC 3000 800, Owner'S Manual

Page: 208 / 318

Display Problems
Display Problems
Overview If there appears to be some problem with your monitor display,
try to locate the problem in this section.
Cursor in
Corner of
Screen
If your monitor displays diagnostic startup tests when you turn
on your system, but then displays only the cursor in the lower
left-hand corner of the screen (rather than displaying the system
startup test information), the alternate console switch is in the
wrong position.
Corrective
Action Locate the alternate console switch, on the rear of the system
unit. Refer to Figure 12–2 to see the switch position. If the
switch is set to the left, it is incorrect for a workstation.
Complete these steps to change the switch position:
1. Turn off the system unit (power switch to the O position).
2. Move the alternate console switch to the right. Use a small
pointed object to set the switch, but do not use a pencil; the
graphite will damage the switch. See Chapter 12 for more
information.
3. Turn on the system unit (power switch to the | position).
13–22 Identifying a Problem