Section II. OPERATING INSTRUCTIONS - TM-11-6625-409-120015

TM 11-6625-409-12

Megacycle

Test lamp

Megacycle

Test lamp

Megacycle

Test lamp

Megacycle

Test lamp

dial setting

indications

dial setting

indications

dial setting

indications

dial setting

indications

116 ............

C, D, M, N 132 ................ A, C, D, M,

148 ............. A, B, C, M 150................ B, C, D, M

149 ............. A, B, C, J

151................ B, C, D, J

117 ............

C, D, J, N

133 ................

A, C, D, J, N

118 ............

A, D, M, N

134 ................

B, D, M, N

119 ............

A, D, J, N

135 ................

B, D, J, N

120 ............

B, M, N

136 ................

A, C, M

121 ............

B, J, N

137 ................

A, C, J

122 ............

C, M, N

138 ................

A, B, D, M

123 ............

C, J, N

139 ................

A, B, D, J

124 ............

D, M, N

140 ................

B, C, M

125 ............

D, J, N

147 ................

A, B, J

Section II. OPERATING INSTRUCTIONS

2-4.

Test Set Subassembly MX3736/ ARM45, Controls, Indicators, and Connectors

(fig. 2-3 and 2-4)

Control, indicator, or connector

Function

ADJUST DC VOLTS control ................................. Reduces the amount of 27.5 volts dc power supplied through the AN/ARM-

45(*) to the AN/ARC-73 or AN/ARC-73A being tes ted under marginal

voltage conditions.

METER SELECTOR switch (6-position

Selects the signal to be sampled and indicated on the meter:

rotary switch).

Sw pos

Action

OFF .......................................... Disconnects meter from all test circuits.

ANT .......................................... Connects meter for indication of rf level.

50 VDCX50 .............................. Connects meter for measurement of the 27.5

volt dc input.

150 VACX150 .......................... Connects meter for measurement of the 115-

volt, 400 cps-ac input.

0-1V.......................................... Connects meter for measurement of the 1,000-

cps input.

0-1 MA......................................... Connects meter for use as milliammeter.

27.5 VDC-DC ADJUST switch .............................. Arranges application of external 27.5-volt dc power through AN/ARM-45 (0)

AN/ARC-73 or AN/ARC-73A under test:

Sw pos

Function

27.5 VDC..................................... 27.5-volt dc power is applied directly to radio

set under test.

DC ADJUST ................................ 27.5-volt dc power may be regulated by

ADJUST DC VOLTS control for marginal

voltage test.

MIKE-TONE switch ............................................... Arranges AN/ARM-45 (*) for either microphone input or test tone (signal

generator input.

XMIT-STANDBY switch ........................................ Arrange AN/ARM-45 (1) for keying of Transmitter 17L-7A under test:

Sw pos

Function

XMIT

Transmitter under test is keyed continuously

by AN/ARM-45 (').

STANDBY

Transmitter under test must be keyed by

microphone connected to AN/ARM-45(*).

RCVR AUDIO-RCVR and SIDETONE

Selects circuit to be monitored at PHONES jack:

Sw pos

Function

switch.

RCVR AUDIO.............................. Permits monitoring of Receiver 51X-2 B audio

output.

RCVR & SIDETONE ................... Permits monitoring of Transmitter 17L-7A

sidetone-receiver circuits.

2-5