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Troubleshooting Checklist - Mitsubishi Electric Apricot LS660 Owner's Handbook Manual

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Troubleshooting checklist

Connections
Power
Monitor
Expansion cards
If you encounter a problem with the computer the following
sections suggest checks to make before you alert your dealer,
authorised maintainer or support organisation. The checks listed
cover the causes of common problems.
Check that all power and signal cables are securely connected to the
correct port on the computer.
The keyboard and mouse are particularly easy to connect into the
wrong port. Although the connectors are identical, the keyboard
will not work if plugged into the mouse port, and vice versa.
The two serial ports also appear identical. If you have a problem
make sure that the cable is connected to the port you are trying to use.
Check that the AC power supply is switched on, and that the fuse
in the AC plug (if any) has not blown. If the system still does not
seem to be getting power, obtain another power cord from your
supplier.
If there is no display check that the monitor is turned on, and the
brightness and contrast controls are not too low.
If you have fitted a new video controller expansion card and
subsequently encounter problems try disabling the on-board video
controller by removing a jumper from the motherboard. See the
chapter 'System motherboard' for more information.
If an expansion card does not work, check that all internal cables are
securely connected, that the card is configured correctly, that its use
of system resources does not conflict another card or motherboard
component, and that legacy resources (if it is an ISA card) are
properly declared in the BIOS setup utility.
T r o u b l e s h o o t i n g
LS/VS660 OWNER'S HANDBOOK
5/5

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