196 Chapter3
Assembly Replacement
Procedure 8. A7 through A13 Assemblies
4. Connect W38 to A11.
5. Install W56/FL2/W57. Ensure that all of the connections are tight.
Torque all SMA connectors to 113 Ncm (10 in-lb).
6. If the spectrum analyzer is an Option 002, install the A10 tracking
generator.
A13 Second Converter
CAUTION Turn off the spectrum analyzer power when replacing the A13 second
converter assembly. Failure to turn off the power may result in damage
to the assembly.
Removal
1. Place the spectrum analyzer upside-down on the workbench.
2. Disconnect W33, coax 81, and W35, coax 92, from the A13 assembly.
3. For Option 002 instruments: Disconnect W48, coax 8, from A13J3.
4. Disconnect W57 from A13J1.
5. Remove the four screws securing A13 to the main deck and remove
the assembly.
6. Disconnect ribbon cable W13 from the A13 assembly.
Replacement
1. Connect ribbon cable W13 to the A13 assembly.
2. Secure A13 to the spectrum analyzer main deck, using four panhead
screws.
3. Connect W33, coax 81, to A13J4 600 MHz IN jack.
4. Connect W35, coax 92, to A13J2 310.7 MHz OUT jack.
5. For Option 002 instruments: Connect W48, coax 8, to A13J3. Route
W48 under W35, coax 92.
6. Connect W57 to A13J1. Ensure that all of the cable connections are
tight. Torque all SMA cable connectors to 113 Ncm (10 in-lb).
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