Table 2. Accessories Required

TB 11-6625-2488-50/1

Table 2. Accessories Required

Item

Common name

Description

number

ADAPTER

Single banana jack to phone (red)

ADAPTER

BNC plug to double banana jack

CABLE 1

30-in, RG-58 ( )/U with double banana plug

terminations

CABLE 2

36-in., RG-58( )/U with BNC plug to double banana

plug terminations

Five required

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

calibration.

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).

c. Connect autotransformer to 115-volt ac source

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.