HP 8340b User Manual

6.
Remove
W53
and
W52
from
the
isolator.
7.
Note the
orientation
of
the
isolator
(the
out
port
is to the
left
when
viewed
from
the
top).
Remove
the
two
screws
holding
the
isolator
mounting
plate.
8.
To
Install
a
new
assembly, reverse
the
above
procedure.
A14/A14A1 High
Band
Power
Amplifier
Replacement
Procedure
Refer to
Figure
H-23
for
related
assemblies,
cables,
and
mounting hardware
locations.
1.
Remove
the
ribbon
cable
going
to
A14A1,
and completely
remove
W7.
2.
Disconnect
W6
from
A14.
3.
To
disconnect
W6
from A16,
first
disconnect
A8W1.
Remove
W6.
4.
Remove
the
eight
screws
that
hold
the
A14/A14A1
assembly
together.
5.
To
install
a
new
A14/A14A1
assembly,
reverse
the
above
procedure.
When
reconnecting
the
ribbon
connector,
be
extremely
careful
not to
bend the
pins.
A15
Low
Band
Low
Pass
Filter
Replacement
Procedure
Refer
to
Figure H-23
for related
assemblies,
cables,
and
mounting hardware
locations.
1.
Remove
W10
and
W52
from the
A15
assembly
and
remove
the
A15
assembly.
2.
To
install
a
new assembly,
reverse
step
1.
NOTE:
When
tightening W10
and
W52
to
the
A15
assembly,
do
not
tighten
so
hard
that
W10
or
W52
is
stressed.
A16
High
Band
Modulator/Splitter
Replacement
Procedure
Refer
to
Figure
H-23,
view
B
for
related
assemblies,
cables,
and
mounting hardware
locations.
1.
Disconnect
the
ribbon
connector
from
A16A1.
2.
Remove
the
A8W1
and
A18A1W1
connectors
from
the
A20
assembly.
3.
Disconnect
W5,
W6,
and
W29
from
the
A16
assembly.
4.
Remove
the
five
A16
mounting
screws
(item
11).
5.
Pull
the
A16
assembly out far
enough
to
access
cables
W28
and
W29.
Remove
these cables
by
gently and carefully
prying
them
up
with
a
small,
flat
tool.
6.
the
entire
A16/A16A1
assembly
is
now
free.
Transfer
the cable
(W30)
that
interconnects
A16
and
A16A1
to
the
new
A16/A16A1
assembly.
7.
Remove
the
5
countersunk
screws
that
hold
the
A16
mounting
plate to
the
A16
assembly,
and
attach the
mounting
plate to the
new
A16/A16A1
assembly.
8.
To
install
the
new
assembly,
reverse
the
above
procedure
(steps
1
through
5).
H-42
RF
Section Repair
Procedures
HP
8340B/41B

HP 8340b Specifications

General

Brand	HP
Model	8340b
Category	Inverter
Language	English