Alpha 1000A Specifications download pdf (Page 172)

8-16 • Troubleshooting AlphaServer 1000A Owner's Guide

Table 8-11 Troubleshooting Monitor and Terminal Problems

Possible Cause Action

The monitor or terminal are not

turned on.

Check that the monitor or terminal is turned on.

Make sure that all cables are connected at both ends.

The monitor or terminal brightness

and contrast controls are incorrectly

set.

Adjust the monitor or terminal contrast and brightness

controls.

Incorrect graphics configuration. See Chapter 6, "Configuring."

The terminal cable is not connected

to the correct serial port.

Check the serial port to which the terminal cable is

connected. Make sure that it is connected to the left-

hand serial port (COM1).

If you are using a console terminal,

check the baud rate setting for the

terminal and system. The system

default baud rate setting is 9600.

Connect the console terminal to the COM1 serial

communication port and set the console environment

variable to serial (set console serial

command).

The power cord is not connected.

The power cord may be faulty. The

power cord socket may not be

working.

Make sure that all the power cords are connected

correctly at both ends. Try a power cord that works or

test the power socket with an appliance that works.

If you are using other than the

standard on-board

VGA

controller,

settings may be incorrect.

Make sure that on-board

CIRRUS VGA

options are set

to disabled through the

ECU

, the

VGA

jumper (J27) on

the upper-left corner of the system board is disabled

(off), and the console environment variable is set to

"graphics."

Combining multiple VGA controllers will produce

unpredictable results, and use of multiple VGA

controllers is not recommended or supported.

The terminal or monitor fuse may

have blown.

Replace the blown terminal or monitor fuse. Refer to

the terminal or monitor documentation.

The port to which the terminal or

monitor connects may not be the

correct one.

The port to which the terminal or

monitor connects may be faulty.

Ensure that your monitor cable is plugged into the

correct graphics port if you have an optional graphics

card installed. You should plug the cable into the

connector of your option card, not the connector on the

system board.

Try connecting the terminal or monitor to another

system using the same terminal or monitor cable. If

the terminal or monitor works, the port to which the

terminal or monitor was connected is faulty. Contact

your service representative.

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