TB 9-6625-2251-24
Table 5. Mode A Horizontal Test
HORIZONTAL
Indications
SEC/DIV
Min
Max
s
2.9700 ms
3.0300 ms
500
l. Set HORIZONTAL MODE pushbutton to B. Display will indicate within Min/Max
indications shown in table 6.
Table 6. Mode B Horizontal Test
HORIZONTAL
Indications
SEC/DIV
Min
Max
s
2.9700 ms
3.0300 ms
500
m. Select VERTICAL MODE pushbutton, set CH 2 to off, and set CH1 to on.
n. Press CURSOR FUNCTION pushbutton and Time pushbutton to OFF.
o. Select HORIZONTAL MODE A; HORIZONTAL MODE B will be turned off.
9. Vertical Gain Accuracy
NOTE
If TI does not perform as specified, perform adjustments as
indicated in SECTION IV.
a. Select TRIGGER MODE and verify NORMAL is set to on; if not, set NORMAL to on.
to off.
b. Select CH1 COUPLING/INVERT and set DC to on and 50
c. Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 output to TI CH 1
input connector, oscilloscope calibrator SOURCE/MEASURE CHAN2 output to TI CH 2
input connector. Rotate CH 1 VOLTS/DIV knob to set CH 1 for 2 mV indication in upper
left portion of crt.
d. Rotate HORIZONTAL A AND B SEC/DIV knob for 500 s indication on crt.
e. Set oscilloscope calibrator to a VOLTAGE output of 8 mV and frequency of 1 kHz.
f. Rotate TRIGGER LEVEL knob as necessary to obtain a triggered display.
g. Adjust oscilloscope calibrator knob located below the EDIT FIELD key for 4
divisions displayed on TI crt. The displayed err on oscilloscope calibrator will be within
2.0 percent.
h. Repeat technique of e through g above for CH1 with settings listed in table 7 below.
The displayed err on oscilloscope calibrator will be within tolerance listed.
