TB 9-6625-177-24
(4) Adjust audio analyzer frequency controls for a frequency counter indication of
1000 Hz.
(5) Disconnect frequency counter from BNC T connector.
(6) Connect end of BNC T connector to multimeter (ac mode).
(7) Set TI range switch to 1.
(8) Adjust audio analyzer amplitude output controls for a multimeter indication
between 0.1591 V rms, 0.00005 V rms.
(9) Locate access hole to R26 (fig. 1).
(10) Pierce paper strip covering R26 (fig. 1) adjustment.
(11) Adjust R26 (fig. 1) until meter pointer rests on 1 on the uppermost scale.
(12) Replace back cover and four screws removed in b (1) above.
(13) Repeat paragraph 8 a above.
Figure 1. Calibration Label and Adjustment Location.
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