TM 55-1520-240-23-9
11-277
BENCH TEST AFCS COMPUTER (AVIM) (Continued)
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780.
Set METER RANGE switch (7) to 20V. Read and
record V27 AC/DC VOLTMETER (10) reading.
781.
Calculate V28. Subtract reading of step 771 from
reading of step 780 (V28 = V27 - V20). Result
shall be -2.023 to -2.473.
782.
Slowly turn INCREASE knob (82)
counterclockwise until KNOTS indicator
(83) reads 200. Turn knob fully clockwise.
Read and record V29 AC/DC VOLTMETER (10)
reading.
783.
Calculate V30. Subtract reading of step 771 from
reading of step 782 (V30 = V29 - V20). Result
shall be -3.597 to -4.397.
784.
Slowly turn INCREASE knob (82) until KNOTS
indicator (83) reads 160. Turn knob fully
clockwise. Read and record V31 AC/DC
VOLTMETER (10) reading.
785.
Wait 5 minutes. Read and record V32 AC/DC
VOLTMETER (10) reading.
786.
Calculate V33. Subtract reading of step 784 from
reading of step 785 (V33 = V32 - V31). Result
shall be 0.000 to +0.200.
787.
Set power switch (81) to OFF.
788.
Slowly turn INCREASE knob (82) and
DECREASE knob (84) fully counterclockwise.
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