TB 9-6625-1356-24
b. Adjustments
(1) Remove TI bottom cover and oscillator shield.
(2) Connect multimeter with a 1 k resistor in series between A2TP1 (fig. 1) and
chassis ground.
(3) Connect audio analyzer to TI using a 50 feedthrough termination.
(4) Position controls as listed in (fig. 2) below.
(5) Adjust AMPLITUDE controls for a 3.0 V indication on TI meter. Multimeter
will indicate between 100 and 120 mV ac.
(6) Adjust A2R17 (fig. 1) for minimum distortion (R).
(7) Connect multimeter between A2TP2 (fig. 1) and chassis ground.
(8) Connect frequency counter to TI, using a 50 feedthrough termination.
(9) Turn FREQUENCY dial to 10.
(10) Adjust S1C2 and S1C7 (fig. 2) alternately until multimeter indicates -350 mV
and frequency counter indicates 10.0 kHz (R).
Figure 1. Test instrument - bottom view.
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