APPENDIX B
SYSTEM STATUS MESSAGES
Meaning
of
System Status messages:
System Status
01
- Write Error
System Status
02
- Read Error
System Status messages will be printed on the 25th line
of
the CRT. These
messages
will
occur
any time the
disk
controller
detects a read or write error.
These errors are referred
to
as either hard or
soft
errors.
SOFT ERRORS
Soft
error means a temporary error due
to
fluctuations
on the power line, over-
heating, excess humidity, etc.
Soft
errors
will
occasionally
happen;
nothing
will
eliminate
them entirely.
On
a power up sequence, power supply
transients
may cause a System
Status
message
to
appear in the 25th line
of
the screen. Wait a couple
of
minutes
to
allow
the power
supply
to
stabilize, then press the reset button. The System
Status
message should disappear.
If a System Status message appears during normal operation,
after
warm-up,
and pressing the reset button
clears the message, it is safe
to
assume
that
the
error is temporary.
The
only
time
soft
errors should concern you is when they reoccur
constantly.
This
indicates
a hardware problem
that
interferes in the proper
functioning
of
the
disk
controller.
94
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