Data General AViiON 4600 Series, Customer Documentation

Page: 239 / 266

Solving Power–Up Problems
C-3
014–002091
Table C-2 Quick Reference for Powerup Problems (Graphics Console)
System Displays Text but Fails Powerup
Is the last display in the powerup If you have not added memory since the
message the number 2? last powerup, contact Data General.
If you have added memory since the
last powerup, press the space bar to
continue.
Do you see a numerical code other Write down the number or text; then
than 2, and/or a text message?
•
Turn power off to the computer unit,
monitor, and any peripherals.
•
Tighten all cabling.
•
Power on peripherals, monitor, and
computer unit again.
Does the problem repeat? Contact Data General.
For This Condition Try This
Blank or Distorted Display
Has the graphics monitor screen Rotate the Brightness dial clockwise.
been blank for 2 minutes? Power down; then
1. Test the acpower supply with a
desk lamp or other electrical device.
2. Tighten power cord connections to
the monitor and computer unit.
3. Tighten the keyboard connection
and all other cabling.
4. Make sure all connected peripherals
are powered on and on line.
5. Turn power back on and try again.
Is text garbled on the screen? Restore default video timing parameters.
(For the 70-Hz monitor enter ,
then type after you hear a beep.)
Do you have a color monitor? Press the Degauss switch.
Is the screen still blank or unclear? Use another monitor or a terminal
to test the computer (if terminal,
disconnect graphics keyboard).
Contact Data General.