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![]() ![]() TM 11-6625-646-15
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TECHNICAL MANUAL
HEADQUARTERS
DEPARTMENT OF THE ARMY
No. 11-6625-646-15
WASHINGTON, DC, 1 March 1966
ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT,
AND DEPOT MAINTENANCE MANUAL
TEST SET, STABILIZATION EQUIPMENT TS-1894/ASM
(PART NO. 114E5987-4. NSN 4920-00-959-6125)
(PART NO. 114E5987-8. NSN 4920-00-133-7834)
Page
INTRODUCTION AND DESCRIPTION
General ......................................................................................................................... 1
Scope ............................................................................................................................. 1
1-2.1 Indexes of publications .................................................................................................. 1
1-2.2 Forms and records ......................................................................................................... 1
1-2.3 Reporting of errors ......................................................................................................... 1
1-2.4 Reporting of equipment improvement recommendation (EIR) ........................................ 1
1-2.5 Administrative storage ................................................................................................... 1
1-2.6 Destruction of Army electronics materiel ........................................................................ 1
Purpose of equipment .................................................................................................... 1
Adapter switch operation ................................................................................................ 2
1-5.1 Items comprising an operable equipment ....................................................................... 2
Description of equipment ............................................................................................... 2
Theory of operation ....................................................................................................... 3
Channel test circuits ...................................................................................................... 3
Roll channel ................................................................................................................... 3
Pitch channel ................................................................................................................. 4
Yaw channel .................................................................................................................. 4
Actuator simulator .......................................................................................................... 5
Phase inverter ............................................................................................................... 5
Chopper.......................................................................................................................... 6
Preamplifier and filter .................................................................................................... 6
Amplifier ........................................................................................................................ 7
Axis meter rectifier ........................................................................................................ 7
External card test circuits ............................................................................................... 8
Demodulator-modulator card test circuit ........................................................................ 8
Amplifier card ................................................................................................................ 9
Amplifier card test circuit ............................................................................................. 10
Function meter circuits ................................................................................................ 13
Dc metering circuits ..................................................................................................... 13
Ac metering circuits ..................................................................................................... 14
Function meter rectifier ................................................................................................ 14
Miscellaneous test circuits ........................................................................................... 14
ASE mode ................................................................................................................... 14
Half-gain mode ............................................................................................................. 14
Power supplies ............................................................................................................. 15
Ac power circuit ............................................................................................................ 15
Dc power circuit ........................................................................................................... 15
Pneumatic system ........................................................................................................ 15
SPECIAL SERVICE TOOLS
Special service tools .................................................................................................... 23
PREPARATION FOR USE, STORAGE, OR SHIPMENT
Unpacking and inspection ............................................................................................ 25
Preparation for use ...................................................................................................... 25
Preparation for storage ................................................................................................ 25
Preparation for shipment ............................................................................................. 25
OPERATING INSTRUCTIONS
General ....................................................................................................................... 27
SAS component tests .................................................................................................. 27
Change 4
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