Disassembly/Assembly Procedures and Parts List 3
Keysight 3458A Assembly-Level Repair Manual 87
Outguard controller assembly removal/installation procedures
The following procedures show how to remove and install the Outguard Controller
Printed Circuit Board Assembly.
Refer to Figure 3-14 for the following procedures.
Removal procedure
1 Use the Covers removal procedure in this section of the manual to remove the
3458A top cover. It is not necessary to remove the bottom covers and the top/
bottom shields.
2 Set the 3458A on your workbench with the top facing you.
3 Use a 7-millimeter nut driver to remove the two hex standoffs on the rear panel
GPIB connector.
4 Locate the gray 20-pin cable that connects between the Outguard Controller
assembly and Outguard Power Supply assembly. Unplug the cable at the
controller assembly.
5 Use the #TX10 Torx driver to remove the three screws on the Outguard
Controller assembly.
6 Push the board toward the front of the instrument, as far it will go, while the
board is still laying down flat in the chassis.
7 Pull the outside edge of the board up. Do this until the inside edge of the board
can be removed from the slots in the instrument chassis. Then pull the board
completely out of the instrument.
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