HOW TO USE THE TROUBLESHOOTING CHARTS.

TM 11-5820-670-30

2-25. HOW TO USE THE TROUBLESHOOTING CHARTS.

NOTE

1. The following measurement checks distortion

at 1020 Hz.

The preceding illustration is an example of a logic flow chart. Refer to the illustration while reading the

following information.

START

Each chart has a start segment, indicating the start of the troubleshooting procedure.

TEST PROCEDURE INSTRUCTIONS

Test procedure instructions appear in a rectangular box. These instructions usually contain specific

test points to be probed.

DECISION DIAMOND

As a result of a particular test point probe, some electrical value should be observed, such as a

voltage indication on a piece of test equipment. The decision diamond defines what value should be

observed and permits a YES or NO decision in response to what is observed.

TROUBLESHOOTING FLOW LINE

Troubleshooting flow lines provide direction to successive steps in the logic chart. An arrow at the end

of each flow line indicates the next step in the troubleshooting chain.

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