TM 9-2320-387-24-l
INSTRUMENTS CIRCUIT
DIAGNOSTIC FLOWCHART
KNOWN INFO
POWER TO GAUGES
WITH ROTARY SWITCH
OFF
POSSIBLE
PROBLEMS
ROTARY SWITCH
WIRING
KNOWN INFO
WIRING OK
~
ROTARY SWITCH
TEST OPTIONS
DISCONNECT WIRE 11A AT THE
I
1. STEXE-R
TEST 89
ROTARY SWITCH. DO YOU HAVE
(Page 2-506)
0 VOLTAGE AT WIRE 29B?
2. MULTIMETER
I
I
J2
1
i TEST OPTIONS
WITH THE ROTARY SWITCH IN
1. STUICE-R TEST 91
THE OFF POSITION, DO YOU
(Page 2-508)
HAVE CONTINUITY BETWEEN
2. MULTIMETER
THE RUN AND START
TERMINALS ON THE ROTARY
SWITCH?
REASON FOR QUESTION
Continuity with the switch off
indicates a shorted switch.
NO FAULTS.
