Lesson 2/Learning Event 1
Identify schematic components.
35 extract, theory of operation extract, and a qualified supervisor/OJT
Given Lesson 2 material, TM 11-5805-201-35
extract, theory of operation extract, pencil, paper, and without
PERFORMANCE. Demonstrate competency of task skills and
knowledge by correctly identifying, within one of two attempts, four out
Demonstrate competency of the task skills
and knowledge by correctly responding to 70 percent of the multiple
choice Lesson 2 exercise covering circuitry of the TA-312/PT.
TM 11-5805-201-35 Extract w/schematic
Theory of Operation Extract
Learning Event 1:
Situation: The soldier is working at an intermediate general
support maintenance facility, has made a visual inspection, operational
However, before he opens the TA-312/PT for troubleshooting the fault, he
must assure himself of the various circuits/components found within the
The student will become familiar with the components of the TA-
312/PT as they appear on the schematic diagram and be able to
trace/describe the outgoing/incoming signal, transmission, and reception
circuits of the TA-312/PT telephone in the CB, LB, and CBS modes of
The theory of operation extract has a much easier to
understand description of circuits than the TM 11-5805-201-35 extract
although both extracts should be used for this learning event.