Appendix G: Troubleshooting
I can't see the picture on my monitor.
If you, or a program (some games, typically), try to change the screen size and colour depth
to a combination outside of the monitor's capability you might be presented with either a
black/blank screen or with a fuzzy/rolling picture. The computer is still functional - it is
simply that the display setting need to be changed back to something more friendly. In theory
you could do this using the mouse and changing the display manager in the Desktop in the
usual way, but it it likely that you you might not be able to see the Desktop to do this.
Alternatively you can enter the CLI (Command Line Interpreter) by pressing <f12> and type
in an instruction to return to a generally accepted screen mode. At the commant line you
should type "Wimpmode 27" then press <RETURN> twice (once to enter the instruction,
then again to return to the Desktop). Since you might not be able to see the display when you
enter the CLI, we have simplified the procedure by associating the above instruction to the
Print Scrn key (f0) so if you need to return the display to a generic screen mode simply press
<f12>, <PRINT SCRN>.
There's no sound coming out of my speakers.
Are your speakers switched on ? Some speakers use mains power so you must ensure they
are switched on before any sound will be produced. Make sure your speakers are plugged in
and switched on. Do the speakers have a volume control ? If so, make sure the volume knob
is turned up enough to allow you to hear sound coming from the computer. Also, check at the
back of the computer to make sure the audio connection has been made to the correct socket.
There are three audio sockets at the back of the computer. These are labelled headphones,
line-in, and mic. The headphone connection, the one right next to the monitor connection, is
where you should connect your speaker cable.
The keyboard has stopped working.
If, after using the computer for a while, everything functions correctly except for the
keyboard alone, simply unplug the keyboard, wait a few seconds, then plug it back in again.
Some keyboards cause a fuse on the motherboard to trip and this reconnection resets the fuse.
Remember, although you can connect the mouse and keyboard into either PS2 connection, it
is recommended that the keyboard is plugged into the lower connection, whilst the mouse
uses the upper socket, for those who wish to use "wake-on-keypress" functionality.
If you have any other difficulties getting to grips with your new RiscStation R7500
computer, please contact your supplier who will be happy to help and offer friendly
assistance.
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