TB 9-6625-003-35
b. Adjustments
(1) Set ratio transformer controls to .063096 and record TI meter deviation from 2-
dB mark on 0 to 2.5 DB scale.
(2) Adjust R189 (fig. 8) until TI meter indicates same deviation on opposite side of
2-dB mark (R).
Figure 8. Model 415D-top view.
(3) Set ratio transformer controls to .100000 and adjust TI VERNIER control for 0-
dB indication on TI 0 to 2.5 DB scale.
(4) Repeat (1) through (3) above as necessary to obtain optimum indication of 0
(zero) and 2-dB on TI 0 to 2.5 DB scale.
(5) Set ratio transformer controls to .056234 and repeat (1) through (3) above for
optimum indications for 0 and 2.5 dB on TI 0 to 2.5 DB scale.
31. Power Supply
NOTE
Do not perform power supply check if all other parameters are
within tolerance.
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