4 Retrofitting Options
246 Keysight 53210A/53220A/53230A Assembly Level Service Guide
8 Re-install the T20 TORX screw removed in step 2 above, securing the rear
flange on the Channel 3 bracket to the motherboard with the screw.
9 Install the two supplied flathead screws through the holes in the left-hand
aluminum side panel into the embedded nuts on the aluminum bracket of the
Channel 3 assembly.
10 If removed previously, re-install the internal battery assembly. Be sure to
re-connect the cables.
11 Re-install the cover by performing the cover removal procedure
(Preliminary Steps 1-4), in reverse.
12 Install the supplied Option 106 or 115 label above the rear panel SMA
connector in the location provided.
If necessary, loosen the hex nut on the other end of the semi-rigid cable to align
the cable and then tighten all nuts. There should be no stress on the semi-rigid
cable.