TB 11-6625-620-35-1
SECTION III
PRELIMINARY OPERATIONS
NOTE
It is recommended that personnel familiarize themselves with the entire procedure before
performing calibration.
b. Connect the other end of power cable to the 115
3-1. Precaution. Before individual test equipment
is connected into the calibration system, the
or 230 volt source required for proper operation, ob-
serving POWER switch position.
following precautions should be taken to prevent
damage to equipment.
CAUTION
3-2. Test Instrument Controls. a. Set BAUDS
RATE switch to 75 BAUDS.
Make certain that the power cable is not
connected to 230 volts ac when the power
b. Set MESSAGE SELECT switch to DOT CY.
switch locking guard device indicated the
c. Loosen % DISTORT LOCK.
d. Turn % DISTORT to O.
power toggle switch to be into the 115 volt
e. Set DISTORT SELECT to BIAS SPACE.
position.
a. Connect power cable to the Test Instrument con-
f. Disregard all other switch positions.
nection AC POWER.
g. Allow 5 minutes for equipment warmup.
SECTION IV
4-1. Baud Bate Frequency Test. a. Performance
{1) Connect the Test Instrument as shown in
Check.
Figure 1. Teletypewriter Test Set TS-799/UGM-1, distortion and baud rate test equipment setup.
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