3/ Operation
Power-On
The following instructions explain how to start up and use the Model III
as
a
ROM-based
system
only.
If
youhave a DiskSystem and are going to load TRSDOS, follow the power-up
instructions given in the Model III Disk System
Owner's
Manual.
If
you have a
Disk System
but
you are not going to load TRSDOS, read the instructions later in this
chapter.
The Computerand all peripherals must be off.
First turn on all peripherals, then turn on the Computer.
(If
you have all the
components connected to a power strip, just turn on the power strip.)
Aftera few seconds, the following message should appear on the Video Display:
Cass?
Themeaning
of
this message will be explained later.
If
the message does not appear:
A. The Video Display may need Brightness orContrastadjustment. See Figure 1
for location
of
these controls.
B.
If
the message still
doesn't
appear, then turn
off
the entire system;recheck all
connections, andtry again. Forfurther assistance,
see'
'Troubleshooting and
Maintenance. ' ,
Donotturn any peripherals
off
while the Computeris inuse; to do so could cause
abnormal operation (the Computercould restart
or'
'hang
up"
, requiring you to
resetorturn the system
off
and on again).
3/1
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