SCOPE MODULE A2 ALIGNMENT (Cont)

TM 11-5805-387-34-2

PROCEDURE

INDICATION

DEATH ON CONTACT may result from contact with high voltage in scope module A2. Scope

module contains 1,100 volts dc. Do not touch the multimeter probes with power on.

1. Rotate SQUELCH SENS CONTROL fully cw.

Set ON/OFF switch ON.

2. Adjust BFO control.

Pattern is centered.

3. Set AUTO MARK HOLD switch ON.

4. Adjust FOCUS potentiometer A2A2R7.

Pattern is well defined.

5. Set AUTO MARK HOLD switch OFF.

6. Adjust HORIZONTAL GAIN potentiometer

A2A1R8, and VERTICAL GAIN potentiometer

A2A1R13.

7. Adjust A2A1C16 and A2A1C17.

Points of Intersection of

ellipses fall on horizontal

and vertical axes.

2-40