TM 11-5805-356-34-1
Associated
4-4. Materials, General Maintenance
technical
Test equipment
manual
and tools
Procedures
Teletypewriter Test
The following materials are required to perform
Set TS-1512/GGM.
the general maintenance procedures:
Test Pattern Generator
SG-431/GGM.
Transistor Test Set TS-
TM
11-6625-539-15
a. Hookup wire, insulated copper, 20 gage
1836/U.
(50 ft).
Not
applicable.
Electronic Equipment
Tool Kit TK-100/G.
Telephone plug (4 ea).
b.
Electronic Equipment
Not
applicable.
Tool Kit TD-105/G.
Telegraph-Telephone
TM
11-5805-356-12
c. Resistor, 600 ohms 5 percent, 2 watts (3
Terminal AN/TCC-29.
ea).
Telephone Set TA-312/P.
TM
11-5805-201-12
Section
III.
TROUBLESHOOTING
4-5. General
a. Signal Substitution for Send Circuits on
The signal substitution charts (para 4-6) help
Send Card 1A1.
to isolate the defective stage or circuit. Voltage
(1) Procedure.
and other measurements taken at the defective
(a) Connect SG-431/GGM signal output
stage will usually isolate the defective part(s).
to the SEND jack on the TH-22/TG under test
The signal substitution procedures at each step
and provide reversals at 74 bauds.
are based on the assumption that all previous
steps have been completed satisfactorily.
in the chart.
(2) Signal substitution chart.
b. Signal Substitution for Receive Circuits on
(1) Procedure. Perform the procedure given
Receive Card 1A3.
in a (1) above.
(2) Signal substitution chart.
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