3 Disassembly/Assembly Procedures and Parts List
70 Keysight 3458A Assembly-Level Repair Manual
13 Install the top cover by placing it over the chassis with the front of the cover
just clearing the front panel. Then push the cover toward the front of the
instrument into the front panel bezel.
14 Refer to Figure 3-4. Turn the instrument so its rear faces you.
15 Reinstall the rear bezel. Use the #TX15 Torx driver to reinstall the four rear
bezel screws.
16 Refer to Figure 3-3. Turn the instrument so its left side faces you. Use the
#TX10 Torx driver to reinstall the top and/or bottom cover ground screws.
17 Refer to Figure 3-2. Reinstall the left side handle strap. Use the #1 Pozidriv to
reinstall the side handle strap screws.
18 Refer to Figure 3-1. Turn the instrument so its right side faces you.
19 Reinstall the right side handle strap. Use the #1 Pozidriv to reinstall side
handle strap screws.
20 Your instrument is now ready for use. Keysight Technologies suggests that
after you apply power that you perform an automatic calibration on the
instrument. To do this, use the “ACAL ALL” command.
For safety purposes and proper operation, it is imperative that the cover
grounding screws be reinstalled.
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