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TM 11-6625-2976-40
HOW TO USE THE PERFORMANCE TEST CHARTS. (CONT)
2-4.
EXTERNAL CONNECTOR IDENTIFIER
The external connector identifier is a large circle which contains the paragraph number of the trouble-
shooting chart and a specific item on that chart, or the number of the next chart in the performance
test sequence. Therefore, a large circle always references some information external to the flow chart
containing the circle.
NOTE
An external connector identifier always completes the performance test chain.
NOTES
The third column on each performance test chart sheet may contain notes to clarify information
contained in the chart.
PERFORMANCE TEST PROCEDURES.
2-5.
TEST EQUIPMENT REQUIRED
Dual-Volt Power Supply, HP PS503A
Digital Voltmeter, HP 3490A
PRELIMINARY EQUIPMENT SETUP
WARNING
Dangerous potentials exist at several points throughout this equipment. When equipment
is operated with case removed, do not touch exposed connections or components.
CAUTION
Remove all jewelry while performing maintenance procedures. Shorting metal or jewelry
to exposed connections may damage test set.
Before beginning the performance tests, complete the following preliminary procedures.
1.
Remove electronic component assembly from case (para 2-17).
2.
Place electronic component assembly face upon level surface.
Remove batteries from Battery case. (Refer to TM 11-6625-2976-12.)
3.
4.
Open air pressure valve.
Using screwdriver, loosen 10 screws securing test set to case and remove test set from case.
5.
2-4

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