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Figure 20. A10 board.

Calibration Procedure For Measuring Receiver Model 8902A Page Navigation
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TB 9-6625-2343-40
(10) Move positive lead from A13TP10 to A13TP12 (fig. 21) and record dc voltage as
level No. 2.
(11) Calculate 2/5 of level No. 1 and 1/6 of level No. 2.
(12) Multiply the lowest voltage calculated in (11) above by 0.95 and record as threshold.
(13) Move positive lead from A13TP12 to A13TP11 (fig. 21) and adjust A13R12 (fig.
21) until multimeter indicates within 0.05 V of threshold value. (R)
(14) Disconnect equipment setup.
b. Adjustments. Adjust A10R24 (fig. 20) for a multimeter indication of 15 V .01 V dc.
(R)
19. Final Procedure
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
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