Agilent Technologies FieldFox MW N9913A, Service Manual, Page: 111 / 156

N9927-90003 7-17
FieldFox Analyzer Repair and Replacement Procedures
Removing and Replacing the Case Group Parts
Replacing the Front Case (including the A1 Keypad)
1. Separate the front and rear cases. See Separating the Front and Rear Cases .
2. Remove the measurement group assemblies (RF top panel assembly, 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 .
3. Remove the front panel group assemblies (A2 LCD, A3 front panel interface board, and RPG). Refer
to “Removing and Replacing the Front Panel Group Assemblies” on page 7-21 .
Figure 7-11 Replacing the Front Case
4. Carefully remove the serial number label from the inside bottom of the old front case and apply the
label to the new front case.
5. Refer to Figure 7-11 . Choose the appropriate model number nameplate overlay for your analyzer,
remove the protective backing to expose the adhesive, and adhere it in the location shown.
6. Remove the dowel pins (item 5) from the old front case and install them in the new case. The other
two dowel pins should already be installed in the case.
7. Make sure that the gaskets (item 6) are all in place in the grooves, that there are no gaps, and that they
are not damaged in any way.
8. Refer to “Removing and Replacing the Front Panel Group Assemblies” on page 7-21 to reinstall the
front panel group assemblies removed in step 3 .
9. Refer to “Removing and Replacing the Measurement Group Assemblies” on page 7-27 to reinstall
the measurement group assemblies removed in step 2 .
10. Reinstall the rear case onto the front case. Refer to “Combining the Front and Rear Cases” on page
7-18 .