310 Chapter7
Replacing Major Assemblies
RF Assembly
Replacement
1. Place the analyzer with the top side facing up.
2. Align the W10 semi-rigid cable (2) with the INPUT connector, and
W31, if equipped with a tracking generator, with the OUTPUT
connector as the Rf assembly is placed into the analyzer. Make sure
that none of the cables are pinched while installing the RF assembly.
3. Replace the bracket (11) which secures the RF assembly to the IF
section.
4. Replace the A7 Analog Interface assembly (1). Refer to the “A7
Analog Interface Assembly.” replacement procedure.
5. Connect W9 (4) to A9J4, and W8 (5) to A9J5.
6. Replace the tie wraps (9) which secure W8 and W9 to the other
cables.
7. Place the analyzer with the bottom side facing up.
8. Replace the four screws (3) that secure the RF assembly to the
analyzer.
9. Tighten the W10 semi-rigid cable (2) on the INPUT connector to
10 inch-pounds.
10.If the instrument came equipped with a tracking generator
assembly, tighten the W31 semi-rigid cable (8) on the OUTPUT
connector to 10 inch-pounds.
11.Replace the instrument cover assembly. Refer to the “Instrument
Cover.” replacement procedure.
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