Replacing The Chassis Assembly - Agilent Technologies E4416A Service Manual

Replacing The Chassis Assembly

1 Remove the Power Meter Cover as shown in
Cover"
2 Disassemble the power meter down to allow access to the rear panel
connectors (Refer to
3 For Standard or Option #002 models, disconnect the Power Reference Cable
from the Front Panel Assembly.
4 For Option #003 units, disconnect the Power Reference Cable from the
Chassis Assembly (rear panel).
5 Remove the A3 Front Panel Assembly as shown in
Panel Assembly"
6 For Option #002 or Option #003 models, remove the Rear Panel Power
Sensor Cable Assemblies as shown on
Sensor Cable Assemblies (Options 002 and 003)"
7 For Option #003 units, remove the Rear Panel Power Reference Connector
as shown on
(Option 003)"
8 Remove the Recorder Output(s) Cable Assembly as shown on
Rear Panel Recorder Output(s) Cable Assembly"
9 Remove all blanking plugs from the rear panel.
10 Obtain the new Chassis Assembly, and then re- assemble the Power Meter
by following steps 1 to 9 in reverse order.
When replacing the power supply unit in the power meter, ensure that all earth
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wiring is reconnected. There are two terminals to check, the first is the force fit
connector to the power supply unit and the second a closed loop terminal
bonded to the chassis with an M3.5 machine screw (use a 9 lb/in T15 screw
driver). All the protective earth wiring can be identified by the insulation color
green with a yellow stripe.
Once re-assembly is complete, the unit must be safety-tested in accordance
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with local guidelines and procedures. This safety-test may take the form of an
Earth Continuity Test, Hi-Pot Test, etc.
E4416A/E4417A Power Meters Service Guide
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
on page 95.
"Removing the A4 Comms Assembly"
on page 105.
"Replacing the Rear Panel Power Reference Cable Assembly
on page 111.
Replaceable Parts
"Removing the Power Meter
on page 99).
"Removing the A3 Front
"Replacing the Rear Panel Power
on page 109.
"Replacing the
on page 112.
5
113