TB 9-6625-2240-24
(10) Connect oscilloscope calibrator CHAN 1 to TI CH1 through 10x attenuator,
50 Ω feedthrough termination, and 5 - 80 pF standardizer.
(11) Pull 20 MHz /TRIGVIEW pushbutton out to 20 MHz.
(12) Set TI TIME/DIV switch to .2 ms.
(13) Oscilloscope calibrator output to 500 mV at 1 kHz.
(14) Set CH1 VOLTS/DIV switch to 5 m (10 m for Tektronix, Type 475A) and press
VERT MODE CH1 pushbutton (in).
(15) Rotate oscilloscope calibrator knob below EDIT FIELD pushbutton to adjust
amplitude for 5 divisions of vertical deflection on TI. Adjust standardizer for optimum
square wave presentation. If optimum square wave presentation cannot be obtained,
perform adjustments listed in table 16.
(16) Repeat technique of (15) above for remaining TI VOLTS/DIV switch settings
listed in table 16 (do not readjust standardizer). If optimum square wave presentation
cannot be obtained, perform adjustments listed in table 16.
Table 16. Voltage Compensation
Test instrument
Oscilloscope
Test
CH1 and CH 2 adjustments
calibrator
instrument
(fig. 1) (R)
EDGE
VOLTS/DIV
Tektronix, Type 475
Tektronix, Type 475A
settings
settings
Square corner
Flat top
Square corner
Flat top
1
500
mV pp
5
m
---
C10(CH1)
---
---
1
C50(CH2)
C10 (CH1)1
1
V pp
10
m
C36
C37
---
C50 (CH2)2
m2
1
V pp
20
C34
C35
C36
C37
m3
250
mV pp
50
C32
C33
C34
C35
500
mV pp
.1
---
---
C32
C33
V pp4
1.25
.5
C30
C31
---
---
V pp4,5
1.25
1
---
---
C30
C31
1Adjust
for optimum results between square corners and flat tops.
2Remove
termination from setup.
3Remove attenuators from setup.
4Maxium amplitude for oscilloscope calibrator. Make adjustments as best as possible.
5Adjust A TRIGGER for stable display if required.
(17) Connect oscilloscope calibrator CHAN 1 to TI CH2 through 10x
attenuator, 50 Ω feedthrough termination, and 5 - 80 pF standardizer.
(18) Set TI TIME/DIV switches to .2 ms.
(19) Set oscilloscope calibrator output to 500 mV at 1 kHz.
(20) Set CH2 VOLTS/DIV switch to 5 m (10 m for Tektronix, Type 475A) and press
VERT MODE CH2 pushbutton (in).
(21) Rotate oscilloscope calibrator knob below EDIT FIELD pushbutton to adjust
amplitude for 5 divisions of vertical deflection on TI. Adjust standardizer for optimum
square wave presentation. If optimum square wave presentation cannot be obtained,
perform adjustments listed in table 17.
16
