Agilent Technologies 22D Manual de usuario descargar pdf (Pagina 12)

12 Installation Note 08720-90318

In Case of Difficulty

1. Make sure that you had moved the A7 CC jumper and then returned it to the original

position at the appropriate times.

2. Remove the BNC to BNC jumper.

3. Press .

4. Locate the A12 Reference board assembly (board with red extractors). Refer to Figure 9.

Adjust the VCXO ADJ for a frequency counter reading of 50 MHz ± 500 Hz.

Figure 9 VCXO ADJ Adjustment Location

5. Reconnect the BNC to BNC jumper as shown in Figure 8. Insert a narrow screwdriver and

adjust the high stability frequency reference potentiometer for a reading of 50 MHz ± 5 Hz.

6. If you cannot adjust the A12 board assembly to the frequency as specified, replace the A12

assembly.

7. If you cannot adjust for a frequency reading of 50 MHz ± 5 Hz, replace the A26 assembly.

Repeat the "Frequency Reference Operation Verification" procedure.

System Menu

CW FREQ

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Agilent Technologies 22D Manual de usuario Pagina 12