Adjustments - TB-9-6625-2083-350013

TB 9-6625-2083-35

(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1

INPUT and CHAN 2 to TI CH 2 INPUT using 50 Ω feedthrough terminations.

(3) Set oscilloscope calibrator for a CHAN 1, EDGE mode output of 100 mV, and

frequency of 100 kHz. Rotate oscilloscope calibrator knob located below EDIT FIELD

pushbutton for 5 divisions of vertical deflection on TI. If TI does not display optimum flat

top adjust C263 and C265 (fig. 1 for Type 453) (fig. 2 for Type 453A) for optimum square

wave indication on TI (R).

(4) Set A AND B TIME/DIV AND DELAY TIME switches to .2 s and MAG switch

to X10. If TI does not display flat top and square corner, perform b (1) below.

(5) Set CH 1 VOLTS/DIV switch to 10 mV, set MAG switch to OFF. Set

oscilloscope calibrator CHAN 1, EDGE output to 50 mV, and rotate oscilloscope calibrator

knob located below EDIT FIELD pushbutton for 5 divisions of vertical deflection on TI. If

TI does not display optimum square wave, perform b (2) below.

(6) Set CH 1 VOLTS/DIV switch to 5 mV. Set oscilloscope calibrator CHAN 1,

EDGE output to 25 mV, and rotate oscilloscope calibrator knob located below EDIT

FIELD pushbutton for 5 divisions of vertical deflection on TI. If TI does not display

optimum square wave, perform b (3) below.

(7) Set MODE switch to CH 2.

(8) Set oscilloscope calibrator for a CHAN 2, EDGE mode output of 100 mV, and

frequency of 100 kHz. Rotate oscilloscope calibrator knob located below EDIT FIELD

pushbutton for 5 divisions of vertical deflection on TI. If TI does not display optimum

square wave, perform b (4) below.

(9) Repeat technique of (5) above for CH 2. If TI does not display optimum square

wave, perform b (5) below.

(10) Repeat technique of (6) above for CH 2. If TI does not display optimum square

wave, perform b (6) below.

b. Adjustments

(1) Adjust R328, C328, (fig. 3) C45A, R45C, and C45C (fig. 1 for Type 453) R328,

C336, C328 (fig. 3) R49, C54, C49, and C45A (fig. 2 for Type 453A) for optimum square

wave indication on TI (R).

(2) Adjust C44A and C44C (fig. 1 for Type 453A) R44C and C44C (fig. 2 for Type

453A) for optimum square wave indication on TI (R).

(3) Adjust L43A, C43A, C43C, and R43C (fig. 1 for Type 453) R43C, C43C, C43A,

and L43A (fig. 2 for Type 453A) for optimum square wave indication on TI (R).

(4) Adjust C145C, R145C, and C145A (fig. 1 for Type 453); R149, C149, C154, and

C145A (fig. 2 for Type 453A) for optimum square wave indication on TI (R).

(5) Adjust C144A and C144C (fig. 1 for Type 453) R144C and C144C (fig. 2 for Type

453A) for optimum square wave indication on TI (R).

CHANGE 2 11

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