Disassembly/Assembly Procedures and Parts List 3
Keysight 3458A Assembly-Level Repair Manual 89
5 Locate the gray 26-pin cable that connects the Outguard Power Supply
assembly to the Display assembly. Unplug this cable at the Outguard Power
Supply assembly.
6 Locate the 8-pin cable that connects the Outguard Power Supply assembly to
the power transformer. Unplug the cable from the power supply assembly.
Move the cable so it lays on the outside of the outguard chassis.