Table 3-1. Resistance Chart

TM 9-4910-736-14&P

Troubleshooting Guide. Consult the troubleshooting guide (table 3-2)

and from the trouble symptom determine the probable cause and the

action that should be taken. These are usually fault-isolating, voltage

measurement checks given in tables 3-3 through 3-11. Use the test set

schematic diagram (figure FO-1) as an aid in troubleshooting.

Resistance Chart

NOTE

Disconnect battery from unit and measure DC resistance as specified.

COIL

FUNCTION switch

COND

OHM

Resistance

between

SERIES

CAP

RES

points

LEAK

0 ohms

-12 V lead and pin E22

-12 V lead and pin E19

0 ohms

+12 V lead and pin El

0 ohms

+12 V lead and test lead

with red boot

ohms

Test lead with black boot

and pin E22

0 ohms

NOTE

If all resistance measurements are normal, consult trouble

shooting guide (table 3-2) for further action.

If any resistance measurements are abnormal, inspect the

defective line to locate the interruption.