TB 9-6625-1200-35
(10) Pullout X10 GAIN AC switch.
(11) Adjust oscilloscope calibrator knob located below the EDIT FIELD key for 4
divisions displayed on TI crt. Err displayed on oscilloscope calibrator will be within 4.0
percent ( 7.5 percent for S/N below 20,000).
(12) Push in X10 GAIN AC switch.
(13) Set oscilloscope calibrator to standby.
b. Adjustments
(1) Set oscilloscope calibrator VOLTAGE output for an Err display of + 0.0 percent.
(2) Adjust CH 1 GAIN for a 4 division display on TI.
(3) Adjust CH 2 GAIN for a 4 division display on TI.
a. Performance Check
(1) Set CH1-CH2 mode switch to CH1 and CH1 VOLTS/DIV switch to .05.
(2) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 output to TI CH
output.
(3) Set TIME/DIV switch to .2 mSEC.
(4) Set oscilloscope calibrator EDGE mode for an output of 200 mV at 1 kHz and
adjust amplitude for 4 divisions of vertical display on TI.
(5) Adjust TI TRIGGERING LEVEL control for a stable display.
(6) For CH 1 only, adjust standardizer for optimum square wave (square corners
and flat tops).
NOTE
If standardizer cannot be properly adjusted, adjust C12 (fig. 1)
to midrange and readjust standardizer for optimum waveform
(R).
(7) Repeat technique of (4) and (5) above for CH 1 VOLTS/DIV switch settings
listed in table 5 using oscilloscope calibrator VOLTAGE mode. If display does not have
square corners and flat tops, perform corresponding adjustments.
CHANGE 2
