Data General AViiON 4600 Series, Customer Documentation

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Solving Power–Up Problems
C-5
014–002091
Blank Monitor Screen at Powerup (AViiON 530 Series)
Complete the steps in this section if you cannot see diagnostic messages on your
monitor screen during the powerup sequence. Follow these steps only if your monitor
screen remains blank for more than 2 minutes after powerup. Use the Unclear
Monitor Display" section if you can see messages, but they are unreadable or distorted.
1. Turn the computer unit power off.
2. Make sure the computer unit's power cord is plugged tightly into an ac power
outlet that is supplying power. Test the outlet with a desk lamp or other ac
device if you are uncertain whether it is supplying power.
3. Make sure the monitor's power cord is plugged tightly into the ac power outlet.
4. Make sure the keyboard is plugged tightly into the computer unit connector, and
that the connection between the keyboard and extension cable is tight.
5. Turn the monitor on. (The green LED on the monitor's power switch is
illuminated when power is on).
6. Rotate the monitor brightness dial clockwise to the maximum setting, as shown
in Figure CĆ1.
7. Make sure the cables that connect your AViiON 530 series computer components
together are undamaged and their connectors are secured tightly so that they
make a good connection.
8. Turn power on to all connected peripherals.
9. Turn power on to the computer unit again.
10. If the display remains blank, your monitor or monitor cables may have a
problem. Try to power up using a different display device. You can use another
graphics monitor that meets the specifications listed in Appendix A; or, if you
have an asynchronous terminal to connect for use as a system console, try the
steps later in this section, Testing With an Asynchronous Terminal."
Blank Terminal Screen at Powerup (AViiON 4600 Series)
Complete the steps in this section if you cannot see diagnostic messages on your
terminal screen during the powerup sequence. Follow these steps only if your terminal
screen remains blank for more than 2 minutes after powerup. Use the Unclear
Terminal Display" section if you can see messages, but they are unreadable or
distorted.
1. Turn the computer unit power off.
2. Make sure the computer unit's power cord is plugged tightly into an ac power
outlet that is supplying power. Test the outlet with a desk lamp or other ac
device if you are uncertain whether it is supplying power.
3. Make sure the terminal's power cord is plugged tightly into the ac power outlet.