Instruments With Option Id5 Only; In Case Of Difficulty - HP 8753E Service Manual

Instruments with Option lD5 Only
10. Reconnect the BNC-to-BNC jumper between the "EXT REF" and the "10
MHz Precision Reference" as shown in Figure 3-19.
Figure 3-19. High Stability Frequency Adjustment Location
11. Insert a narrow screwdriver and adjust the high-stability frequency
reference potentiometer for a CW frequency measurement within
specification.

In Case of Difficulty

Replace the A26 assembly if you cannot adjust the CW frequency within
specification.
H I G H
O
J U M P E R FREGUENCY ADJUST
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S T A B I L I T Y
Adjustments and Correction Constants