INSTRUMENT SWITCH CIRCUIT. (Cont) - TM-9-2350-238-20-10140

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 6.

Disconnect lead 10 from 20A circuit breaker on electrical accessories

panel. Place red probe in lead 10. Ground black probe. Set MASTER

switch ON. If multimeter indicates no voltage, repair lead 10. Refer to

page 2-371. If multimeter indicates about 24 volts, replace circuit breaker.

Refer to page 2-590. Set MASTER switch OFF. Connect lead 10 to 20A

circuit breaker on electrical accessories panel.

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