Table 5. Volts/Div Compensation

Calibration Procedure For Oscilloscope Type 434 Page Navigation
6

TB 9-6625-2117-24

Test instrument

Oscilloscope calibrator

VOLTS/DIV switch

amplitude output

setting

(divisions)

5 mV

2 mV

1 mV

20 mV

50 mV

0.1 V

0.5 V

1 V

2 V

(7) Press vertical mode CH 2 and TRIGGER SOURCE COMP pushbuttons.

(8) Set oscilloscope calibrator for a CHAN 1, EDGE mode output of 1 kHz and

adjust amplitude for 5 divisions of vertical deflection.

(9) Repeat technique of (5) and (6) above for TI VOLTS/DIV switch settings listed

in table 5 for CH 2. If TI does not display square corners and flat tops, perform b below.

b. Adjustments

(1) Set CH 1 VOLTS/DIV switch to 10 mV and press vertical mode CH 1 and

TRIGGER SOURCE CH 1 pushbuttons.

(2) Set oscilloscope calibrator for a CHAN 1, EDGE mode output of 1 kHz and

adjust amplitude for 5 divisions of vertical deflection.

(3) Adjust C9 (fig. 1) to midrange and readjust standardizer for optimum

square wave.

(4) Set TI CH 1 VOLTS/DIV switches to 20 mV and adjust oscilloscope calibrator

output amplitude for 5 divisions of vertical deflection.

(5) A d j u s t C H 1 C 1 0 6 ( f i g . 1 ) f o r s q u a r e c o r n e r a n d C H 1 C 1 0 7 ( f i g . 1 ) f o r

f l a t t o p (R).

(6) Set TI CH 1 VOLTS/DIV switches to 50 mV and adjust oscilloscope calibrator

output amplitude for 5 divisions of vertical deflection.

(7) Adjust CH 1 C110 (fig. 1) for square corner and CH1 C111 (fig. 1) for flat top (R).

(8) Set TI CH 1 VOLTS/DIV switches to .1 V and adjust oscilloscope calibrator

output amplitude for 5 divisions of vertical deflection.

(9) Adjust CH 1 C114 (fig. 1) for square corner and CH 1 C115 (fig. 1) for flat top (R).

(10) Set TI CH 1 VOLTS/DIV switches to 1 V and adjust oscilloscope calibrator

output amplitude for 5 divisions of vertical deflection.

(11) Adjust CH 1 C118 (fig. 1) for square corner and CH 1 C119 (fig. 1) for flat top (R).

(12) Set CH 2 VOLTS/DIV switch to 10 mV and press vertical mode CH 1 and

TRIGGER SOURCE CH 1 pushbuttons.