TM-3-1040-268-20-P
LAUNCHER, GRENADE, SMOKE: SCREENING, RP, M250
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
MAY 1982
TM-3-1040-268-20-P - Page 21 of 72
Step 6. Set range switch on Rx 1000 and zero multimeter. Touch red probe prod on pin B (ground) of
electrical receptacle connector (1). Touch black probe prod on flat hex surface of jack connector
(2) inside each barrel.
a. If meter reads zero (0) on OHMS scale, no fault,
Go to step 7.
b. If any other reading, corrosion is between jack connector and body.
(1) Remove jack connector, remove corrosion (clean), and install same jack con-
nector (para 2-8a).
(2) Recheck jack connector, then go to step 7.
Step 7.
With range switch on Rx1000, zero multimeter. Touch red probe prod on pin A of electrical
receptacle connector (1). Touch black probe prod on flat hex surface of jack connector (2) inside
barrels 3, 4, and 6.
TM 3-1040-268-206P
a. If meter reads infinity (
) on OHMS scale, no fault.
Go to step 8.
b. If meter reads zero (0) on OHMS scale, bad jack connector.
Replace jack connector. Remove and install (para 2-8a).
2-9
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