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5790B
Service Manual
Access Procedures
Top and Bottom Covers
Check that power is not connected to Product; the power control must be off, and
the line power cord must be disconnected. Top and bottom covers are secured
with eight Phillips head screws (four front, four rear).
Digital Section Cover
The Digital Section is accessed through one top cover that is secured by six
Phillips head screws (five on top and one on side).
Analog Section Covers
The Analog Section is enclosed with separate covers on top and bottom. The top
cover is secured with nine Phillips head screws. The bottom Analog Section
cover is secured with eight Phillips head screws (three short, five longer).
Rear Panel Removal and Installation
Once the top and bottom covers are removed:
1. Remove the six hex-head screws (three on each rear handle side).
2. Remove the two Phillips-head screws found along the side of the fan
3. Remove the two hexagonal jack screws next to the RS-232 connector.
4. Remove the two hexagonal jack screws next to the GPIB connector.
5. Carefully pull the rear panel housing from the rear panel.
6. Remove nut, star washer, and green/yellow wire from inside rear panel.
7. Remove spade lug connections form line filter on inside of rear panel.
Reverse this procedure to install the Rear Panel assembly.
4-6
assembly.
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