Main Check 1. Press [SERVICE).

2.Select Selftest CFull) . Check that all tests performed pass.

3.Press [PRESET). If the display indicates a user preset was performed, select Factory Preset . Verify that the green SWEEP LED is blinking, the amber RF ON/OFF LED is on, and the red INSTR CHECK LED is off.

4.P r e s s ( U S E R C A L ) .

5.Select Tracking Menu .

a. If the synthesizer has Option 001, step attenuator, select Auto Track. Wait for the synthesizer to finish peaking before continuing.

b. If the synthesizer has no step attenuator installed, provide a good source match on the output connector (a power sensor or 10 dB attenuator will do). Select Auto Track. Wait for the synthesizer to finish peaking before continuing.

6.Press I=).

7.Select Freq Cal Menu.

8.Select Sup Span Cal Once. Verify that status problems do not exist (UNLOCK, UNLVLED, or FAULT). An OVEN status message will appear on the message line if the synthesizer has been disconnected from ac power. This message will turn off within

10 minutes, if it does not, there may be a problem. If a FAULT message is displayed, refer to menu map 6, Service to access fault information.

9.Terminate the RF output with a good source match (either a 500 load or power sensor). Press (POWER LEVEL). Increase the power level until the unleveled message is displayed on the message line. Decrease the power level until the unleveled message turns off. Note the power level reading. Verify that the synthesizer can produce maximum specified power without becoming unleveled.

This completes the operator’s check. If the synthesizer does not perform as expected, have a qualified service technician isolate and repair the fault. See “Service Information.”

Specifications

Operator’s Check/Routine Maintenance 4-3