VECTOR 4 USER'S MANUAL
STARTING UP YOUR VECTOR 4
The
Automatic
System
Test
One of
the
important
features of the Vector 4 is the Automatic System Test.
You will notice
that
the
screen
displays the message:
Testing
•••
when you
first
turn
on the power or press the
RESET
button. The Vector 4
performs three automatic
test
programs every time you
start
up.
These
test
programs check:
• the ability of
the
memory
to
retain
information accurately.
• the system executive program for any errors.
•
the
keyboard,
to
ensure
that
it
is
correctly
attached
and
functioning.
This helps assure you
that
your Vector 4 is functioning properly.
Should the automatic
test
uncover any errors,
it
will display one
of
the
three
following messages:
RAM MEMORY
ERROR:
BLOCK
xx :
EVEN/ODD
ADDRESS:
BITS
IN
ERROR
=
xx
•
PROM CHECKSUM ERROR
KEYBOARD
I/O
ERROR
* represents a two-digit number.
Should you
get
any of these messages when you turn your system on,
refer
to
Appendix B,
User's
Guide
To
Troubleshooting
The
Vector
4.
Rev. A - 9-01-82
PIN
7100-0001
III-9
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