TB 9-6625-1914-24
7. Equipment Setup
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.
a. Mate TI with RF plug-in and install in display section.
b. Connect display section to autotransformer.
c. Connect autotransformer to a 115 V ac source and adjust for a 115 V ac output.
d. Energize equipment and allow 1 hour for equipment to warm-up and stabilize.
e. Adjust display section INTENSITY and FOCUS controls to approximately 1
o'clock position.
f. Position RF plug-in controls as listed in (1) through (8) below:
(1) RANGE MHz switch to 0-110 (not on all models).
(2) FREQUENCY control to 40 MHz.
(3) FREQUENCY FINE TUNE control centered.
(4) BANDWIDTH switch to 300 kHz (100 kHz on Model 8554( )).
(5) SCAN WIDTH (red) switch to 0 - 100 MHz (PER DIVISION on Model 8554( )).
(6) SCAN WIDTH PER DIVISION switch to 10 MHz.
(7) INPUT ATTENUATION switch to 10 dB.
(8) TUNING STABILIZER switch to ON (up).
g. Position TI controls as listed in (1) through (9) below:
(1) BASE LINE CLIPPER control fully ccw.
(2) SCAN TIME PER DIVISION switch to 10 SECONDS.
(3) LOG REF LEVEL switch fully ccw.
(4) LOG REF LEVEL (LINEAR SENSITIVITY VERNIER) vernier control to zero (0).
(5) LOG/LINEAR switch to LOG (10 dB LOG on Model 8552B).
(6) VIDEO FILTER switch to 10 kHz.