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

or Connector

Index No.

Specific Function

Sw Pos

Selects fore-aft TAS signal

to be monitored.

Selects lateral TAS signal

to be monitored.

Selects vertical TAS signal

to be monitored.

Selects absolute pressure signal

to be monitored.

Selects air temperature signal

to be monitored.

Selects downwash velocity signal

to be monitored.

STAT 1

Selects status word 1 to be

monitored.

Selects status word 2 to be

STAT 2

monitored.

DATA WORD

Display 3-digit decimal word.

Decimal display DS12

Selects simulated radar altitude signal to be

RDR ALT FT Seven-position

transmitted to the EPU under test. Signals are

rotary switch S7.

selected in increments of 5 ft from 0 to 30.

AIR TEMP Co Ten position

Selects simulated centigrade air temperature

signal to be transmitted to the EPU under test.

rotary switch S6

Signals available are -54, -40, -30, -15,

0, 15, 30, 45, 60 and 71.

EPU 28V pushbutton switch

Opens the EPU 28 Vdc circuit so that current may be

S13

measured at AMPS test points TP13 and TP14.

Opens the LAI +15 Vdc circuit so that current may

LAI +15V pushbutton

switch S14

be measured at AMPS test points TP13 and TP14.

LAI 15V pushbutton

Opens LAI -15 Vdc circuit so that current may be

switch S15

measured at AMPS test points TP13 and TP14.

AMPS TP14 Gray

Negative test point to measure current of LRU input

power selected by S12.

AADS TEST 7-position

Selects signals to be monitored at TP15 and TP16 as

rotary switch S16

listed below.

2-4