TB 9-5915-214-35
15. Power Supply and DC Adjustments
a. Connect multimeter to microprocessor card TP 6 and card ground (fig. 2).
b. Adjust R105 (fig. 2), located to the left of the rear panel CH 1 INPUT BNC
connector for multimeter indication of -15 V r0.05 V.
c. Connect multimeter to microprocessor card TP 5 and card ground (fig. 2).
d. Adjust R102 (fig. 2) for multimeter indication of +15 V r0.05 V.
f.
Verify multimeter indicates +5 V r0.2 V for both test points.
16. 1st Quadriatic Frequency
NOTE
Perform procedures of paragraphs 16 through 19 using CH 1,
then repeat procedures using CH 2. When performing CH 2
adjustments, add the number 200 to all capacitor or resistor
references. For example referenced in step j below for CH 1 is
C167. When performing the same procedure for CH 2, the
capacitor would be C367.
a. Press MODE parameter key until CUTOFF FREQUENCY display indicates L.P.
b. Press INPUT(db) and OUTPUT GAIN(db) control keys until displays indicate 00.
c. Press TYPE parameter key until CUTOFF FREQUENCY display indicates bu.
d. Press SHIFT parameter key.
e. Press TYPE parameter key; dC should be displayed in the CUTOFF
FREQUENCY display. If CUTOFF FREQUENCY display does not indicate dC, repeat
steps d and e until dC is displayed.
f. Press corresponding keys as listed in (1) through (4) below and verify CUTOFF
FREQUENCY indicates 25.00.
(1) 2 data entry key.
(2) 5 data entry key.
(3) KILO parameter key.
(4) FREQ parameter key.
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