If
the
HP
70340A
ERR
LED
or
the
display
E
remains
on
after
the
power-up
test
is
complete
Check
the
error
queue
for
error
messages
.
T
o
check
the
error
queue:
1.
Press
4
DISPLA
Y
5
and
then
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REPORT
ERRORS
.
2.
If
necessary
,
press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
NEXT
INSTR
until
the
HP
70340A
errors
are
displayed.
3.
Check
the
display
for
the
reported
error(s).
4.
Press
4
MENU
5
to
clear
the
queue
and
return
to
the
HP
70340A
screen.
5.
If
the
ERR
LED
is
still
on,
refer
to
the
HP
70340A/41A
User's
Guide
\Error
Messages"
chapter
or
your
mainframe/display
user's
guide
for
assistance
in
correcting
the
error(s).
Check
that
the
ERR
LED
or
the
display
E
is
not
ashing.
If
any
error
indicator
is
ashing,
this
indicates
that
the
module
cannot
talk
over
the
HP-MSIB
bus
.
If
more
than
one
error
indicator
is
ashing,
the
mainframe
HP-MSIB
is
faulty
,
a
module
is
faulty
,
or
the
HP-MSIB
cables
are
probably
faulty
.
Check
that
there
are
no
mainframe
error
messages
.
Mainframe
error
messages
will
appear
on
the
display
.
Refer
to
your
mainframe
operating
and
service
manuals
if
a
mainframe
error
occurs
.
Check
for
proper
(secure)
HP-MSIB
cable
connections
.
Check
that
the
HP-MSIB
cables
are
connected
serially
to
form
a
loop
.
Check
that
no
two
modules
within
the
system
have
the
same
HP-MSIB
address
.
In
order
to
change
a
module
HP-MSIB
address
,
refer
to
the
procedure
,
\T
o
Check
and
Set
the
HP
70341A
HP-MSIB
A
ddress"
in
chapter
1.
2-8
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