Keysight NFA Series Noise Figure Analyzers Service Guide
419
Assembly Replacement Procedures
RF Area (N8976B)
Replacement
1.
Inspect the chassis where the YTF Preselector mounts and remove the gap
pad if present (see
(1)
). The gap pad may remain
attached to the faulty YTF Preselector.
Figure 15-23
Gap Pad Installation
Refer to
. Install the replacement gap pad
(1)
into the recess
in the base of the replacement YTF Preselector
(2)
Chapter 14, “Replaceable Parts.”
for the gap pad part number. Peel back
one corner of the clear plastic backing on the pink side of the gap pad.
Remove the blue backing from the other side of the gap pad. Install the
gap pad as shown with the pink side exposed. Carefully peel off the clear
plastic backing and smooth the gap pad into the recess.
2.
. Place the YTF Preselector into the chassis with the
connectors toward the front of the instrument. Replace the four screws
(2)
. Torque to 9 inch-pounds.
3.
. Replace the cables W7 and W8 (or W47 and W48). Torque
to 10 inch-pounds.
4.
Replace the wire harness W22.
5.
Refer to
. Position the chassis side, right onto the chassis and
replace the thirteen screws. Torque to 9 inch-pounds.
6.
Replace the front panel. Refer to the
replacement
procedure.
7.
Replace the top brace. Refer to the
replacement procedure.
8.
Replace the instrument outer case. Refer to the
replacement procedure.
Содержание N8973B
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Страница 44: ...44 Keysight NFA Series Noise Figure Analyzers Service Guide Overview How to Return Your Instrument for Service ...
Страница 132: ...132 Keysight NFA Series Noise Figure Analyzers Service Guide Instrument Messages Condition Messages ...
Страница 228: ...228 Keysight NFA Series Noise Figure Analyzers Service Guide RF Section Troubleshooting N8976B Troubleshooting ...
Страница 268: ...268 Keysight NFA Series Noise Figure Analyzers Service Guide Analog Digital IF Troubleshooting 25 MHz BW IF Section ...
Страница 322: ...322 Keysight NFA Series Noise Figure Analyzers Service Guide Block Diagrams Block Diagrams Block Diagrams ...
Страница 332: ...332 Keysight NFA Series Noise Figure Analyzers Service Guide Block Diagrams Block Diagrams NFA Computer Block Diagram ...
Страница 350: ...350 Keysight NFA Series Noise Figure Analyzers Service Guide Service and Diagnostics Menus Front Panel Key Test ...
Страница 470: ...470 Keysight NFA Series Noise Figure Analyzers Service Guide Assembly Replacement Procedures Front Frame Assembly ...