Section III. PRELIMINARY OPERATIONS
TB 11-6625-2932-35
6. Preliminary Instructions. a. The instruction outlined
tenance information is contained in
in this section are preparatory to the calibration process.
the manufacturer's manual for this
Personnel should become familiar with the entire bulletin
Test Instrument.
before beginning the calibration.
b. Items of equipment used in this procedure are
NOTE
referenced within the text by common name and item
Do not perform power voltages and
number identification as listed in table 2 and 3. For the
current check unless out of tolerance
identification of equipment referenced by item numbers
conditions in the preceeding checks
cannot be corrected by adjusting the
WARNING
specified component
HIGH VOLTAGE is used during the
7. Equipment Setup.
performance of this calibration.
NOTE
DEATH ON CONTACT may result if
Determine if the TI being calibrated is
personnel fail to observe safety pre-
the special version that operates from
cautions
a 60Hz power frequency source or the
NOTE
version that operates from a 50Hz
power frequency source before apply-
Unless otherwise specified, verify the
ing power.
results of each test and, whenever the
test requirement is not met, take
corrective action before continuing
a. Set TI front panel switch 110V 125V 150V 220V
with the procedure. Additional main-
240V to the appropriate setting according to the available
voltage source to be used.
b. Energize TI and allow sufficient time for warmup and
stabilization.
Section IV. CALIBRATION
(2) Connect audio oscillator (Al) to TI ground and to
8. Deflection Voltage. a. Performance Check.
contact 4 (fig. 1) of the socket for relay T rls 43.
(1) Set TI shift control to a midrange position and
the changeover switch to distortion.
Figure 1. A. Socket for relay, pin connections.
B. Cathode ray relay tester, display.
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