Common Module Tray A1, Controls, Indicators, and Connectors (cont)

TM 11-6625-847-12

Control, indicator, or connector

Function

Pos

Action

LOW test point connected to ground.

3 ----------------

HI test point connected to DC/ DC converter.

LOW test point connected to ground.

4 ----------------

HI test point connected to ground.

LOW test point connected to DC/DC

converter.

5 ----------------

HI test point connected to DC/ 'DC converter.

LOW test point connected to DC/DC

converter.

RF AMPL AGC switch ------------------------------------------

When set to ON, variable -dc voltage from RF AMPL AGC

ADJ control is connected to RF AMPL.

DC/DC CONVERTER LOAD SELECT switch -----------

Controls size of resistive load for +20-volt dc regulator section

of dc-to-dc converter module, RT-462/GRC.

Pos

Action

100------------- 196.3 ohms, 100 ma, load.

500------------- 38,3 ohms, 500 ma, load.

600------------- 32A ohms, 600 ma, load.

RF AMPL AGC ADJ control ----------------------------------

Controls level of -dc voltage to contact terminal 1 of RF AMPL

AGC switch.

RF AMPL 100 KC SELECTOR AND 10 KC --------------

Mechanically positions 100 kc and 10 kc shaft

SELECTOR switches ----------------------------------------

couplers for rf amplifier module, RT-662/GRC.

POWER INDICATOR -----------------------------------------

Indicates POWER switch S1, is set to ON, and +27volt dc

primary power is supplied from test set.

J1 -------------------------------------------------------------------

Multipin connector for electrical interconnection of tray Al and

test set.

NOISE BLANKER NOISE BLANKER 20 VDC -----------

For connecting +20 volts dc to noise blanker,

connector -------------------------------------------------------

RT-662/GRC.

NOISE BLANKER (ground) connector -------------------

Ground connector for noise blanker RT-662/GRC.

DC/DC CONVERTER CONV/REC TEST HI -------------

Test point for measuring input current to converter

test connector --------------------------------------------------

or regulator sections of dc-to-dc converter and regulator

module, RT462/GRC.

DC/DC CONVERTEIR CONV/REC TEST CONV

Test point for measuring input current of converter

LOW test connector

section of dc-to-dc converter and regulator module,

RT62/GRC.

DC/DC CONVERTER CONV/REC TEST REG

Test point for measuring input current of regulator

LOW test connector

section of dc-to-dc converter and regulator module, RT -

462/GRC.

DC/DC CONVERTER LOAD SELECT HI test

Test point for voltage measurements of dc-to-dc

connector

converter and regulator module, RT-62/GRC.

DC/DC CONVERTER LOAD SELECT LOW test

Test point for voltage measurements of dc-to-dc

connector

converter and regulator module, RT462/GRC.

DC/DC CONVERTER connector --------------------------

Multipin connector for electrical interconnection of dc-to-dc

converter and regulator module, RT-62/ GRC to tray Al.

DC/DC CONVERTER LOAD SELECT (ground)---------

Ground test point for voltage measurements of

connector

+20-volt dc output of regulator section of dc-to-dc

converter and regulator module, RT-662/GRC.

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