Chapter 7. ALIGNMENT PROCEDURES

TM 11-6625-539-15-2

CHAPTER 7

ALIGNMENT PROCEDURES

7-1. General

Under normal conditions, the test set will maintain

the factory alignment over a long period of time. It

is necessary to realign the test set if any component

except the batteries is changed. Alignment procedures

are given in paragraphs 7-2 through 7-4.

7-2. Alignment of Meter Zero

a Set the polarity switch to OFF.

b. Adjust the meter zero adjustment screw located

directly below the base of the pointer for a 0 meter

indication.

7-3. Alignment of Meter OHMS Position

a. Test Equipment Required. The only test equip-

ment required is a 100-ohm, ±1 percent, ½-watt

resistor, FSN.

b. Procedure.

(1) Disconnect the unit from the case by remov-

ing the four front panel screws.

(2) Set the polarity switch to FWD PNP.

(3) Set the. function switch to OHMS E-B.

(4) Adjust resistor Rll (fig. 7-1) so that the

meter pointer indicates full scale on the OHMS scale.

Figure 7-1. Component location, board mounted.

7-1