error
is
an
unreco
v
erable
hardw
are
error,
and
it
may
require
the
use
of
sp ecial
diagnostic
to
ols
and
replacemen
t
of
a
hardw
are
comp onen
t
whic
h
y
ou
cannot
access.
5.
If
y
our
w
orkstation
cannot
b e
turned
o
,
call
y
our
designated
service
represen
tativ e.
This
requires
replacemen
t
of
a
hardw
are
comp onen
t
whic
h
y
ou
cannot
access.
System
Unresponsiv
e
T
ry
the
actions
listed
in
T
able
6-1
if
y
our
system
do es
nothing
in
resp onse
to
turning
on
the
p o
w
er.
T
able
6-1.
Problems
with
P
o
w
ering
Up
the
System
Problem
Action
The
p o
w
er
LED
do esn't
come
on.
Mak
e
sure
the
A
C
p o
w
er
cables
are
connected
securely
to
the
system
unit.
Mak
e
sure
the
p o
w
er
cord
is
plugged
into
a
w
orking
A
C
outlet.
Mak
e
sure
the
p o
w
er
switc
h
is
set
to
the
ON
p osition.
Depress
it
sev
eral
times
to
see
if
the
system
can
b e
made
to
respond.
None
of
the
amb
er-c
olor
e
d
LEDs
in
the
fron
t
panel
turn
ON
after
the
p o
w
er
switc
h
is
depressed.
Replace
the
p o
w
er
supply
.
See
\Replacing
the
P
o
w
er
Supply
Assem
bly"
in
Chapter
5.
6-2
Troubleshooting
Summary of Contents for Model 720 - Workstation
Page 2: ......
Page 3: ...1 January 1991 Edition 1 January 1991 Edition 1 1 1 ...
Page 8: ......
Page 13: ...Figure 2 3 System Unit Switch Locations Your HP Apollo 9000 Model 720 730 Workstation 2 5 ...
Page 15: ...Figure 2 4 LED Windows Your HP Apollo 9000 Model 720 730 Workstation 2 7 ...
Page 60: ......
Page 117: ...Figure 5 1 Core I O Card Removal Expanding Your Workstation and Replacing Its Parts 5 7 ...
Page 119: ...Figure 5 2 Processor Card Removal Expanding Your Workstation and Replacing Its Parts 5 9 ...
Page 121: ...Figure 5 3 SIMM Card Removal Expanding Your Workstation and Replacing Its Parts 5 11 ...
Page 123: ...Figure 5 4 Internal Disk Removal Expanding Your Workstation and Replacing Its Parts 5 13 ...
Page 129: ...Figure 5 7 VSC Interface Card Removal Expanding Your Workstation and Replacing Its Parts 5 19 ...
Page 131: ...Figure 5 9 Power Supply Removal Expanding Your Workstation and Replacing Its Parts 5 21 ...
Page 132: ......
Page 157: ...Troubleshooting 6 25 ...
