Service 7
Keysight 85024A User’s and Service Guide 71
Refer to Figure 7-11.
6 Remove the four screws which hold in the regulator assembly. Desolder the
colored wires attached to the regulator assembly and remove the regulator
assembly.
7 Remove the transition nut with the transition nut spanner (shown in
Figure 7-10) and pull the inner connector out of its keyed hole.
8 Unscrew the inner connector from the RF cable. Hold the nut with long nose
pliers while turning the connector.
9 Remove the hex nut with the special cable nut wrench (shown in Figure 7-10).
The cable will now come loose.
10 Insert the new cable into the regulator frame and attach the hex nut.
11 Make sure the insulator (shown in Figure 7-9) is inside the connector.
12 Screw the inner connector onto the new RF cable and insert the inner
conductor into the keyed hole.
13 Attach the transition nut with the spanner wrench.
14 Screw on the connector body and tighten with the 9/16 inch wrench.
15 Solder the seven power supply wires onto the regulator assembly as shown in
Figure 7-11.
16 Attach the A1 regulator assembly to the metal frame with the four screws
removed earlier. The long screws go into the heatsink end.
17 Replace the metal housing reinforcement and plastic covers. The covers and
housing reinforcement are illustrated in the replaceable part chapter, in
Figure 6-1, “Replaceable parts identification” on page 53.
Refer to Figure 7-7.
18 On the new probe wand, place the amplifier microcircuit into the heatsink
assembly. Place the elastic conductive strip in place, making sure the gold
traces are facing down and are aligned lengthwise with respect to the probe.
Make sure the elastic conductor is flush with the front of the heatsink. The
screwdriver may be used to align the strip.
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