TB 9-6625-2215-35
b. Adjustments
NOTE
For serial number prefix below 1444A, no adjustments can be
made. For serial number prefix 1444A and above, perform (1)
through (4) below.
(1) Remove bottom cover from TI.
(2) Adjust function/arbitrary generator for 100 kHz and amplitude of 25 mV.
(3) Adjust A1R59 (A channel) closest to front panel or A1R57 (B channel) near rear
of TI to obtain stable indication of applied frequency.
(4) While reducing function/arbitrary generator amplitude, adjust A1R59 (A channel)
or A1R57 (B channel) to obtain maximum sensitivity.
10. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA Label/Form in accordance with TB 750-25.
CALIBRATION PROCESS FOR 10 MHz COUNTER, HEWLETT-PACKARD,
MODEL 5301A
11. Preliminary Instructions
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in tables 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure, additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Unless otherwise specified all controls and controls settings refer to the TI.
12. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
