Left
Rear
Heat
Sink
and
Component
Replacement
Left
Rear
Heat
Sink
and
Component
Replacement
Force
FXTM-C
Service
Manual
Equipment
required:
•
Phillips
screwdriver.
Warning
Electric Shock
Hazard-
To
allow stored energy
to
dissipate after power is
disconnected, wait
at
least five minutes before replacing parts.
The generator contains electrostatic-sensitive components. When repairing the
generator, work at a
static-control workstation. Wear a grounding strap when
handling electrostatic-sensitive components, except when working on an
energized generator. Handle circuit boards by their nonconductive edges. Use an
antistatic container for transport
of
electrostatic-sensitive components and circuit
boards.
Notice
Calibrate the generator after you install a new heat sink or replace components
on the heat sink. Component differences may affect output waveforms. Refer to
Calibrating the Force FX-C Generator in Section 5 for instructions.
Step
1 -
Remove
the
left
Rear
Heat
Sink
A.
Turn
off
the
generator.
Disconnect
the
power
cord
from
the
,vall
receptacle.
B.
Remove
the
five
screws
that
secure
the
cover
to
the
chassis.
Lift
the
cover
off
the
chassis.
Set
the
cover
and
screws
aside
for
reinstallation.
C.
Remove
the
three
screws
(one
plastic
and
tv.;·o
metal)
that
secure
the
support
bracket
to
the
heat
sinks.
Save
the
screws
and
bracket
for
reinstallation.
D.
Disconnect
the
4-wire
heat
sink
(bridge
rectifier)
cable
from
the
Power
Supply
/RF
board.
E.
I
,oosen
but
do
not
remove
the
screw
securing
the
component
clip
below
the
bridge
rectifier.
F.
On
the
left
side
of
the
chassis,
remove
the
two
scre\\'s
that
secure
the
base
of
the
left
rear
heat
sink
to
the
rail
under
the
Power
Supply
/
RF
board.
Save
the
screws
for
reinstallation.
G.
Lift
the
left
rear
heat
sink
to
disconnect
it
from
the
Power
Supply
/
RF
bO<1rd.
7
-17
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