TB 9-6625-2293-35
NOTE
If ∆ control is adjusted at step 18, 20, 23 or 25 the previous
step will be repeated. At step 28, adjust TRANS RESP R802
(fig 1) for precisely two cycles between the 2d and 10th
graticule lines.
(35) After step 29 has been completed display will indicate DIAGNOSTIC PUSH
A/B TRIG TO EXIT.
20. CAL 02 -Vertical
a. Performance Check
(1) Set TRIGGER MODE switch up to step to CAL 02 (bottom left of display).
(2) Push up and release TRIGGER COUPLING switch. TI will step from 100 to
111 and display will indicate CH 1 VAR, CH 2 POS, (step) 111, 500 mV.
(3) Set oscilloscope calibrator for a CHAN 1, VOLTAGE mode output of .5 V at 1
kHz frequency.
(4) Adjust CH 2 POSITION control to position sweep within 1 division of center
horizontal graticule line.
(5) Adjust CH 1 POSITION and VOLTS/DIV VAR controls for 10 divisions of
horizontal deflection.
(6) Push up and release TRIGGER COUPLING switch. Display readout will
indicate (step) MOVE SW, CENTER CH 1 POS, (step) 112, 500 mV, and BWL.
(7) Push up and release TRIGGER COUPLING switch.
(8) Adjust CH 1 POSITION control until CH 1 input coupling 1 M Ω DC indicator
remains illuminated. Push up and release TRIGGER COUPLING switch.
NOTE
In the following steps, if the LIMIT message appears, it
probably indicates that the upper TRIGGER COUPLING
switch was pushed before the required signal was applied.
Push down and release TRIGGER COUPLING switch, verify
that the correct signal is applied, and then push up and release
TRIGGER COUPLING switch.
(9) Display readout will indicate first step number listed in table 15.
(10) Push up and release TRIGGER COUPLING switch for TI step numbers and
calibration generator output settings as listed in table 15.
