TB 9-6625-1914-24
(3) Position IF plug-in controls as listed in (a) through (g) below:
(a) SCAN TIME PER DIVISION switch to 5 ms.
(b) LOG/LINEAR switch to LINEAR.
(c) LINEAR SENSITIVITY control to 10 mV/DIV.
(d) VIDEO FILTER switch to 100 Hz.
(e) SCAN MODE switch to INT.
(f) SCAN TRIGGER switch to AUTO.
(g) BASE LINE CLIPPER control fully ccw.
indication.
(5) Carefully adjust FINE TUNE and ZERO ADJ controls for peak indications of
function generator no. 1 dc level on display screen.
(6) Adjust LINEAR SENSITIVITY control for an indication of 700.0 mV dc
on multimeter.
(7) Set function generator no. 1 to frequencies of 15 and then 30 kHz while
maintaining 30 mV reference level, using technique noted in (4) and (5) above. Multimeter
indication will be between 683.9 and 716.1 mV.
(8) Adjust function generator no. 1 for an output of 50 kHz and a 30 mV reference
indication.
(9) Set RANGE switch to 0-300 kHz and repeat technique of (5) through (7) above
at frequencies of 50, 150, and 300 kHz. Multimeter indication will be between 683.9 and
716.1 mV.
b. Adjustments. No adjustments can be made.
48. Average Noise Level
a. Performance Check
feed-through termination to TI INPUT connector.
(1) Connect a 600
(2) Position TI controls as listed in (a) through (g) below:
(a) RANGE switch to 0-30 kHz.
(b) FREQUENCY control to 7 kHz.
(c) FINE TUNE control centered.