Sage II - System Level Troubleshooting; Initial Power-Up and LED Status; Boot Diskette and Error Checks; Drive Booting Troubleshooting

SAGE rr SERVTCE
MANITAL
I
I
.0
]
SYSTEM LRVEL
TROUBLE
SHOOTING
V
SYSTEI{
LEVEL
TROTIBLE
SHOOTING
:
l.
Connect
the
power
cord and
terminal. T\rrn the
power
switch
on.
During a normal
power-on
the
front
panel
LED
is
RED
for
a
fractlon
of
a
second. Then
it turns
green for
the startup test
until
the
boot
from
the
floppy is finished. It should stay
green
except
for
flashes
of red.
2. If LED stays
dark
then the
power
supply
may
not
be worklng. If
LED stays RED then the
cpu
board may
not
be
worklng.
If LED
ls
blinking
then the
cpu cannot
access the Eerminal chlp.
3.
If the
LED
is
dark see the section on CHECK
THE
POWER SUPPLY.
4- Insert the
booE diskette
and
press
reset.
5.
If
no
slgn-on
message
appears
or
one of the
following
errors
occur, replace the
computer board.
Exceptlon error
Parity
error Memory error
These
errors
can also
be
caused by
a
power
supply
with an
lntermittent
problem
or
whose
voltages
need adiusting.
6.
If
the
sign-on
appears ok but there
is
an error in
bootlng the
diskette
(
such as
an error reading a system
flle,
a drive
error,
or
a
CRC error)
try booting on the other drive using
the debugger
command
tt
IF
l
tt
.
7.
If
there
are
Ewo drives and neither
one
will
boot the system, try
replacing
the computer
board.
8.
If
there
ls
only
one
drive
or
the computer
board
has
been
replaced
on
a
two
drive
system, try
replacing
the boot disk
drlve.
0n
a
SAGE
II
thls
is
Ehe lefr-hand
drive
(lt4z).
9.
Replace
the
disk drlve ribbon
cable
and try booting
wlth the new
cable.
10.
Next,
check
the
voltage
at
the disk
drive
clrcuit board itself
where it
comes
out
of the
connector. If the voltage
ls
out of
spec,
check the
power
supply
voltage. If it is
correctr r€place
the
power
wirlng
harness.