H 8753D Option 011 With Option 1D5 Only - HP 8753D Option 011 Service Manual

HP 8753D Option 011 with Option 1D5 Only
8. Connect the BNC to BNC jumper between the \EXT REF" and the \10 MHz recision
Reference" as shown in Figure 3-20.
9. Use a at-head screwdriver to remove the screw that covers the precision frequency
adjustment as shown in Figure 3-20. Insert a narrow screwdriver and adjust the precision
frequency reference potentiometer for a spectrum analyzer center frequency measurement
of 5 Hz.
Figure O T1D5 here.
Figure 3-20. High Stability Frequency Adjustment Location
10. Replace the A26 board assembly if you cannot adjust for a center frequency measurement
of 50 Hz.
RAFT
3/21/106 15:11
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com
Adjustments and Correction Constants 3-47