POWER SUPPLY PERFORMANCE TEST.

TM 11-6625-2975-40

2-13.

AM MODULATION PERFORMANCE TEST. (CONT)

16.

Observe modulation analyzer. If it does not Indicate between 39.90 and 40.10 percent, go

to troubleshooting chart 2-1, sh 10.

17.

Enter frequency 75.00 MHz into test set.

18.

Select 1300 Hz TONE SELECT key.

19.

Press (to light) %MOD FUNCTION/CONTROL key. RDL/DDM/MOD display wiII indicate 95.0

MOD (%).

20.

Observe modulation analyzer. If modulation analyzer does not indicate between 94.90 and

95.10 percent AM, go to troubleshooting chart 2-1, sh 10.

POWER SUPPLY PERFORMANCE TEST.

NOTE

Do not perform this test unless directed to do so by troubleshooting chart 2-1.

TEST EQUIPMENT REQUIRED: Digital Voltmeter HP 3490A

EQUIPMENT SETUP: Remove cover from test set (para 2-27)

Connect test set to 115 vac power source.

EL9LY022