TB 9-6625-2097-35
(2) Adjust dc voltage standard output for 25 mm pen deflection to the left on TI. If
dc voltage standard does not indicate between 2.490 and 2.510 V dc, perform b below.
(3) Vary autotransformer (A2) between 105 and 125 V while maintaining a 25 mm
pen deflection on TI with dc voltage standard. If dc voltage standard indication does not
remain between 2.490 and 2.510 V dc and b was not performed in (2) above, perform b
below.
(4) Set dc voltage standard for 25 mm pen deflection to the right on TI. Dc voltage
standard will indicate between -2.490 and -2.510 V dc.
(5) Repeat techniques of (1) through (4) above for SIGNAL INPUT 2 .
b. Adjustments
(1) Set dc voltage standard output for +2.500 V dc.
(2) Adjust CH. 1 R201 SPAN (CH. 2 R201) (fig. 1) for a 25 mm pen deflection to the left
on TI.
9. Overshoot
a. Performance Check
(1) Adjust signal generator (A7) for 1 Hz square wave at 4 V p-p.
(2) Connect signal generator to SIGNAL INPUT 1 (fig. 2), using adapter and cable
(B1 and B2). Turn VARIABLE SPEED control to fully cw. If waveform on TI does not
indicate less than 1 percent overshoot, perform b below.
(3) Repeat technique of (2) above for SIGNAL INPUT 2.
b. Adjustments. Adjust CH. 1
R204 DAMPING
(CH. 2
R204) (fig. 1) for minimum
overshoot or undershoot.
a. Performance Check
(1) Press 25 mm/sec pushbutton.
(2) Connect test oscillator (A8) to SIGNAL INPUT 1 (fig. 2), using adapter, cable,
and termination (B1, B2, and B6).
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