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Maintenance
6-30
2715 Spectrum Analyzer Service Manual
Use the following procedure to replace the RF Mother Board:
1. Remove the instrument from its cabinet.
2. Disconnect P100, P410, P400, P565, and P670 from the RF Mother board
(Figure 6--8 on Page 6--24).
3. Remove the nut and washer from J100 on the RF Mother board.
4. Remove the four screws from the four corners of the RF Mother board.
5. Remove the RF Mother board assembly.
Replace the assembly by reversing the removal procedure.
Use the following procedure to replace the Power Supply Assembly:
1. Remove the instrument from its cabinet.
2. Remove the plugin circuit board retainer.
3. Remove all the plugin circuit boards.
4. Remove the Variable Resolution module.
5. Remove the connector from J480 on the Sweep board.
6. Disconnect P400 from the RF Mother board (Figure 6--8 on Page 6--24).
7. Remove the CRT (see Replacing the CRT on Page 6--19).
8. Remove the connector from J6 on the Power Supply board.
9. Remove four screws at the corners of the rear subpanel.
10. Remove two screws as shown in Figure 6--11.
Replacing the RF Mother
Board
Replacing the Power
Supply Assembly