TB 9-6625-2044-35
(A3) to +24 V test point (fig. 2) and chassis ground,
COUNTER INPUT connector, using cable (B3).
using two leads (B5). If dc voltmeter does not indicate
(3) Adjust test oscillator frequency to 10 kHz
between 23.990 and 24.010 V, perform b below.
b. Adjustments. just R50 (fig 2) for a 24.00-V
and amplitude to minimum.
(4) Slowly increase test oscillator amplitude
indication on dc voltmeter (R).
until TI displays a stable indication of applied frequency
Test oscillator output will not exceed -10 dBm.
13.
Final Procedure
(5) Repeat technique of (3) and (4) above at
a. Deenergize and disconnect all equipment and
test oscillator frequencies of 100 kHz, 1 MHz, and 10
reinstall protective cover on TI.
MHz.
b. When all parameters are within tolerance,
(6) Substitute signal generator (A6) for test
annotate and affix DA Label 80 (US Army Calibrated
Instrument). When the TI receives limited or special
(7) Repeat technique of (3) and (4) above at
signal generator frequencies of 30, 50, 100, and 120
Limited or Special Calibration). When the TI cannot be
MHz.
adjusted within tolerance, repair the TI in accordance
b. Adjustments. No adjustments can be made
with the maintenance manual. When repair is delayed
for any reason or the TI cannot be repaired with local
12.
Power Supply
resources, annotate and affix DA Form 2417 (US Army
Calibration System Rejected Instrument) and inform the
owner/user accordingly In accordance with TB 750-25-1.
NOTE
Do not perform power supply checks
if all other parameters are within
tolerance.
a. Performance Check. Connect
dc
By Order of the Secretary of the Army:
E. C. MEYER
General, United States Army
Chief of Staff
Official:
ROBERT M. JOYCE
Brigadier General, United States Army
The Adjutant General
Distribution
To be distributed in accordance with DA Form 12-34C, Block 319, requirements for calibration procedures
publications.
U.S. GOVERNMENT PRINTING OFFICD: 1982-546-033/299
8