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TM 11-6625-2976-40
2-11. VOR MODE ADJUSTMENT. (CONT)
PROCEDURE
Adjust R74 until voltmeter indicates 160 10 mv.
1.
NOTE
Adjusting R74 will change the voltmeter reading of R72 adjustment and vice versa. Be
sure to double check both adjustments after adjusting R72.
2. Adjust R72 until voltmeter indicates 120 10 mv.
3. Set voltmeter mode to DC and connect frequency counter to J12 as shown below.
4. Press 30 HZ REF DELETE switch then adjust R57 for 9960 Hz on frequency counter. The dc meter
should indicate between 4.650 and 4.850 vdc.
5. Disconnect voltmeter from test set.
2-47

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