Table 2-1. Control Panel, Operating Controls, Indicators, and Connectors (continued).

TM 55-4920-325-14&P

Table 2-1. Control Panel, Operating Controls, Indicators, and Connectors (continued).

Name of Control,

Figure 2-1

Function

Indicator, or

Index

Connector

Number

Megohmmeter ZERO ADJ

Permits calibration of

control (R107)-continued

MEGOHMMETER indicator

at zero setting when Meg-

ohmmeter RANGE SELECTOR

is set to ZERO CAL.

Megohmmeter MIDSCALE

Operates in conjunction with

ADJ control (R106)

Megohmmeter RANGE

SELECTOR switch. Per-

mits calibration of the

midscale setting when

Megohmmeter RANGE SELEC-

TOR is set to MIDSCALE CAL.

Megohmmeter RANGE

Operates in conjunction with

MEGOHMMETER indicator

SELECTOR switch

(S102)

to extend range of

resistance which can be

measured by MEGOHM-

METER indicator. When

set to MIDSCALE CAL or

ZERO CAL, permits

calibration of MEGOHM-

METER indicator at mid-

scale or zero points.

Provides for connection to

EXT RES terminals (E102

and E103)

external resistance to be

measured. Functions in

conjunction with

CAP-RES CHECK switch.

Provides means for connect-

TEST IND COAX connec-

ing test set to aircraft

tor (J401)

indicator coaxial connector.

Provides means for connect-

TEST IND UNSH connec-

ing test set to aircraft

tor (J402)

indicator unshielded con-

nector.

Provides means for connect-

TEST IND COMP con-

ing test set to aircraft

nector (J403)

indicator compensator

connector.

2-6