General; Removal Of Covers; Removal Of Assemblies; Power Supply Board - Assembly 2 - HP 8082A Operating And Service Manual

5 - l

GENERAL

5 - 2 This section contains information on the
removal of coversand assemblies, performance verificat-
ion and recalibration procedures, safety checks and trou-
bleshooting procedures.
5 - 3 attempting to remove covers, assem-
blies or components, disconnect the instrument from the
for a few minutes after disconnecting from the line to
enable capacitors to discharge.
REMOVAL
5 - 4
5-5
The top, bottom and side covers can be
cover and sliding the respective cover to the rear.
REMOVAL OF
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Figure 6-11
General
the metal retaining strip across the top rear of the boards.

Power Supply Board - Assembly 2

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nector to the rear of the board. Ease the connector off
the end of the board.
5-l 1 Ease the board out of its connector on the
rear of the Mother board
Repetition Rate Generator Board -
Assembly 3
Disconnect the four coaxial cables from the
5 - 1 3
Amplifier board (A3).
OF COVERS
ASSEMBLIES (See
Ease the board out of its connector on the
rear of the Mother board (Al).

Output Amplifier Board - Assembly 4

5 - 1 5
Disconnect the two coaxial cables from the
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Step Attenuator board (A9).
5-l 7 Disconnect the four coaxial cables from the
Repetition Rate board
Disconnect the two flat cables from the
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Remove the two screws securing board A4

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heat sink to the rear of the frame.
Carefully ease the board out of its connec-
5 - 2 0
tor on the Mother board
the cut-out in the rear of the frame.
5-21

Buffer Amplifier Board - Assembly 8

5-22 First remove the Output Amplifier board
Remove the screw securing board A8 to board
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A4 and carefully separate the two boards.
5 - 2 4
Hybrid Circuit Renewal
5-25 First remove the Output Amplifier board
Remove the four screws securing the heat
5 - 2 6
sink to the board and remove the hybrid circuit.
5-27 When fitting the new hybrid circuit, thermal
compound must be used to give good thermal contact
between the circuit and the heat sink (compound part
number 6640-0266).
MAINTENANCE