TM 9-1240-216-34
4-3.
POOR FOCUS (ONE OR BOTH EYEPIECES)
(SHEET 5 OF 6)
USING
SCREWDRIVER, TURN
VARIABLE RESISTOR
(1) FULLY
CLOCKWISE.
MULTI METER SHOULD
READ ZERO OHMS.
REPLACE VARIABLE
PROBE WITH RED
LEAD ON TERMINAL
WITH RED WIRE
(2).
SHOULD READ
INFINITY (00)
OHMS .
READS
INFINITY OHMS
REPLACE VARIABLE
RESISTOR (VOL II,
Para 4-3 (Sheet 5 of 6)
4-10
Vol I