TM 11-5820-765-34
(5) Check ac cable assembly:
Insulation not frayed or damaged.
( 6 ) Check ac cable W3P1 (PP-4763A):
Plug securely attached to cable, not damaged.
(7) Resistance check of interlock switch S1:
Operates properly (refer to
S1 open reading is O ohms.
S1 closed reading is 2.2K.
Replace top panel.
2 - 1 4 . STATIC VOLTAGE REGULATION TEST
Test Equipment and Materials
TF-171/USM
AN/USM-98A
Voltmeter ME-30(*)/U
Test switch (single-pole, 60 ampere)
Resistor, 0.56 ohm, 1000 watts
Resistor, 1.3 ohms, 1000 watts
Test Connections and Conditions
Connect test equipment as shown.
CAUTION
For
PP-4763A,
set
ac
input
links
to
115-volt
operation
before
connecting
power supply and test equipment to source (para 2-10).
