Technical data
Remote SPU Analysis
The
SPU
and
monitor
allows remote analysis of problems by means of
the
beeper. To
test
the
SPU
remotely, follow this procedure:
1.
Establish
a telephone connection
with
someone
at
the
location of
the
completely installed workstation.
2.
Have
them
hold
the
receiver
near
the
speaker
output.
The
speaker
is located in
most
monitors,
or
in
the
speaker module.
3. Now have
them
turn
the
SPU
on.
4.
The
SPU
will go
through
its self-test
and
report
problems as a
series of beeps. These beeps correlate
with
the
above error codes.
5.
The
beeper
annunciates
the
seven least significant bits. A high
beep
indicates a one
and
a low
beep
indicates a zero.
For example, suppose
that
on power-up a
SPU
emits
three
low
beeps,
a high beep, two low beeps
and
a high beep.
This
will
be
of
the
form
000
eooe,
where 0 represents a low beep, e represents a high beep
and
x represents
an
unbeeped
high
or
low. Referring
to
the
table of Boot
ROM
Error
Codes shows a RAM Failure as
the
probable cause.
32 Thoubleshooting