TB 11-6625-2488-50/1
Table 2. Accessories Required
Item
Common name
Description
number
B1
ADAPTER
Single banana jack to phone (red)
B2
ADAPTER
BNC plug to double banana jack
CABLE 1
B3
30-in, RG-58 ( )/U with double banana plug
terminations
B4
CABLE 2
36-in., RG-58( )/U with BNC plug to double banana
plug terminations
1
Five required
2
Two required
g. Connect voltmeter between UUT QUIESCENT
6. Preliminary Procedure.
Note Personnel should familiarize themselves
CURRENT jack and GND, using adapter (B1, table 2).
with the entire bulletin prior to performing
Voltmeter will indicate -1.0 volt dc. If not, adjust UUT
QUIESCENT CURRENT control until voltmeter indicates
a. Remove protective cover from UUT.
-1.0 volt dc.
h. Remove short circuit from UUT INPUT
b. Connect UUT to
autotransformer (A9, table 1).
terminals.
Note. When the UUT is not within tolerance,
and adjust controls of autotransformer for 115 volts ac.
perform the specified adjustment and continue the
d. Set UUT INPUT SELECTOR switch to DCX10
performance check. When the UUT is not within
and POWER switch to ON. Allow 20 minutes for
tolerance and no adjustment is specified the
equipment to warm up and stabilize.
deficiency must be corrected before continuing with
e. Short circuit INPUT terminals, using a short
the procedure.
piece of copper wire.
Warning. HIGH VOLTAGE is used during the
f. Connect voltmeter (A6, table 1) between UUT
performance of this procedure.
DEATH ON
OUTPUT DC and GND terminals. Voltmeter will indicate
CONTACT may result if personnel fail to observe
0 (zero) volts. If not, adjust OUTPUT DC LEVEL (on
safety precautions.
front panel) until voltmeter indicates 0 (zero) volts.
5