Table 2-1. Controls, Indicators and Connectors - Continued

TM 9-4931-378-13&P

Table 2-1. Controls, Indicators and Connectors Continued

Control, Indicator

Fig. 2-1

Function

Index No.

or Connector

Selects test set internal signals to be monitored

TS MON 14-position rotary

switch S 11

on TP9 and TP 10 to check operation of the test set.

Specific Function

Sw Pos

Selects 115 Vac line input.

115VAC

Selects 28 Vdc line input.

28 VDC

+10V

Selects +10 Vdc

Selects -10 Vdc

-10V

Selects +5 Vdc

Selects SIN

Selects COS

Cos

SIN

Selects SIN

Selects COS

Cos

Selects V

Selects

RDR ALT

Selects radar altitude

REF OSC

Selects reference oscillator

POWER TEST three-position

Specific Function

Sw Pos

rotary switch S12

Selects +28 Vdc input power to the EPU

EPU 28V

to be monitored.

Selects +15 Vdc input to the LAI to be

LAI + 15V

monitored.

Selects -15 Vdc input to the LAI to be

LAI - 15V

monitored.

2-7