HP 8340b User Manual

6.
The
line
module
is held in
by
four plastic
retainers
and
two
metal
clips.
The
metal
clips
are
NOT
part
of
the
line
module and
must
be
removed
before
the
line
module
can
be
removed:
a.
To
release
the
metal
clips, using wire
cutters,
cut
the plastic
retainers
away
at
the
base,
flush
with
the
body
of
the
line
module,
well
away
from
the
tops
of the
metal
clips.
The
metal
clips
do
not
come
off
if
any
plastic
remains.
b.
With a
flat
head
screwdriver, pry
the
metal
clips
away
from
the line
module;
lay
them
down
as
far
as
possible.
c.
Remove
and
discard the
metal
clips;
remove
the
line
module.
Line
Module Installation
1.
Select and
install
the
proper
fuse
in
the
fuse
holder.
2.
Set the
line
voltage
selection
cam
to
the
proper
line
voltage.
NOTE:
The
cam does
not
turn.
To
change
the
line
voltage
selection,
remove
the
cam
from
the
power
line
module and replace
it
in
the
proper
position.
3.
Place
the metal
retainers
(HP
part
number
02932-00038)
on
the
line
module,
the
portion
of
the
clip
that
is
bent
90°
(at
each
end
of the
clip)
should
fit
under
the plastic
retainers on
the
line
module.
4.
When
you
insert
the
line
module
in the
rear panel, ensure
the
line
cord
receptacle
is
on
the side
farthest
from
the
instrument
fan.
5.
Push
the
line
module
in
firmly
until
all
clips
engage
on
the
inside
of the
rear
panel.
6.
Wire
the
new
line
module
as
shown
in
Figure
1-4.
Reinstall
the
rear
panel
by
reversing
step
4
of
the
line
module removal
procedure.
FAN REPLACEMENT
Fan Removal
Refer
to Figures
l-5a and
1-6.
1.
Disconnect
line
power,
and
remove
the
instrument
top
and bottom
covers.
2.
Wait for
the
A19
power-on
safety indicator
(red
LED)
to
go
out.
This
indicator
is
visible
from
the
top
of
the
instrument
with
the
cover
removed.
3.
Remove
the
A35
assembly protective
cover
(item
10),
the
A35
assembly,
and
the
nearby
capacitor
cover
(item
11, in
two
pieces).
4.
Disconnect
the
fan
cable
from
J30
(located
on
the
motherboard
assembly.
5.
Remove
two
screws
(item
12)
from
the
rear
panel
frame
(top).
6.
Remove
three
screws
(item
13)
from
the
rear
panel
frame
(bottom).
Note
the location
of
the
ground
lug
and of
the
small
metal grounding
plate.
7. Remove
the
four
screws
(item
13a)
located
on
the
rear
panel.
The
fan
assembly
can
now
be
separated from
the
instrument
frame.
1-20
Power Supplies/Fan Repair
Procedures
Change
4
HP
8340B/41B

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English