Agilent Technologies FieldFox MW N9913A, Руководство по обслуживанию

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N9927-90003 7-21
FieldFox Analyzer Repair and Replacement Procedures
Removing and Replacing the Front Panel Group Assemblies
Removing and Replacing the Front Panel Group Assemblies
Tools Required
• T-8 TORX driver (set to 6 in-lb)
• T-10 TORX driver (set to 9 in-lb)
• 7/16-inch hex nut wrench or “nut driver” (set to 9 in-lb)
• Repair and Re-assembly Kit . Refer to “Miscellaneous Parts” on page 6-13 .
• Soldering tool (Required only for RTC battery replacement .)
WARNING Before beginning any repair, disconnect the power cord.
Pre-replacement Procedure
1. Separate the front and rear cases. Refer to “Separating the Front and Rear Cases” on page 7-10 .
2. Remove the measurement group assemblies (RF top panel, A4 RF board, A5 System board, and A6
SOM board) as one unit with the I/O panel attached. Refer to “Removing and Replacing the
Measurement Group Assemblies” on page 7-27 .
Replacing the RPG and RPG Knob
1. Refer to Figure 7-15 . Remove the two hole plugs from the back side of the front case, next to the
RPG.
2. To replace the RPG knob:
a. Insert a round shaft, such as a screwdriver shaft, into the exposed holes and push the RPG knob
off of the RPG shaft to the front side of the front case.
b. Install a new knob by aligning the D-shaped detent in the knob with the D-shape on the shaft and
push the knob into position.
3. To replace the RPG:
a. Disconnect the RPG cable, W12, from the A3 front panel interface board.
b. Using a 7/16-inch hex nut wrench, remove the hex nut from the RPG shaft.
c. Pull the RPG out the back side of the front case and retrieve the lock washer from the front side.
d. To install a new RPG, reverse the above steps. A new cable, nut, and washer are included with the
new RPG. When reinstalling the RPG cable, W12, bend the cable toward the right side on top of
the display to front panel interface board cable.