TB 9-6625-2330-35
HIGH VOLTAGE is used or exposed during the performance of
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.
NOTE
Before connecting TI, the protective earth terminal of the
instrument must be connected to the protective conductor of
the line power cord. The line plug shall only be inserted in a
socket outlet provided with a protective earth contact. The
protective action must not be negated by the use of an
extension cord (power cable) without a protective conductor
(grounding). Grounding one conductor of a two-conductor
outlet is not sufficient protection.
NOTE
When indications specified in this procedure are not within
tolerance, perform the power supply check prior to making
adjustments.
b.
Connect autotransformer to a
115 V ac
source and adjust autotransformer to
115 V ac
.
c. Press POWER pushbutton to ON and allow at least 30 minutes for TI to stabilize.
d. Connect REF IN/OUT to frequency difference meter SIG INPUT.
e. Connect a 1 MHz output using time/frequency workstation to frequency difference
meter REF INPUT.
f.
Adjust REF ADJ (TI
rear panel) for a minimum
frequency difference meter
indication.
g. Verify
oscillator drift is
less than 2
parts in 10
8 in 24 hours.
h.
Disconnect frequency difference meter from TI and
time/frequency workstation.
a. Performance Check
(1) Connect frequency counter input A to TI RF OUTPUT.