ADJUSTMENTS

TM 11-6665-209-40

3-4.

ADJUSTMENTS

NOTE

P e r f o r m the following steps when electron tube V102 has been

replaced.

a. Adjustment of Resistor R106.

(1) Connect test equipment as shown below.

(2) Adjust resistor R106 until 1 volt is recorded on the voltmeter.

NOTE

Perform the following steps when any of the following components

have been replaced (V103, V104, and Q105).

b. Adjustment of Resistor R117.

(1)

Set the range switch S102 to 50 mR/hr range.

(2)

Rotate resistor R117 clockwise until the radiacmeter indicates full scale.

Connect test equipment as shown below.

(3)

(4)

S l o w l y rotate resistor R117 counterclockwise until the multimeter indicates

the lowest reading.

(5) C o n t i n u e rotating resistor R117 counterclockwise until the multimeter in-

dicated 0.5 0.1 vdc higher then the reading in step 4 above.