TB 9-6625-2139-35
b. Connect TI to a 115 V ac source.
c. Position controls as listed in (1) through (22) below:
(1) A and B INTENSITY controls fully ccw.
(2) POSITION controls to midrange.
(3) CH 2 POSITION INVERT (PULL) control to in position (AN/USM-488).
(4) VERTICAL MODE CH 1 BOTH CH 2 switch to CH 1.
(5) VERTICAL MODE TRIGGER SOURCE CH 1 and CH 2 pushbuttons pressed
to COMPOSITE (AN/USM-488).
(6) CH 1 and CH 2 VOLTS/DIV CAL controls fully cw to detent.
(7) CH 2 INVERT pushbutton to out position (type 2235).
(8) CH 1 and CH 2 AC GND DC switches to DC.
(9) BW LIMIT 20 MHz pushbutton to out position.
(10) HORIZONTAL MODE switch to A.
(11) A AND B SEC/DIV switches to .2 ms.
(12) X10 CAL control fully cw and in position.
(13) VAR HOLDOFF control fully ccw to NORM.
(14) B TRIGGER SLOPE pushbutton to OUT:
(15) B TRIGGER LEVEL control fully
cw.
(16) A TRIGGER P-P AUTO pushbutton to in position.
(17) A TRIGGER NORM pushbutton to out position.
(18) A TRIGGER SLOPE pushbutton to OUT (positive slope).
(19) A TRIGGER LEVEL control to midrange.
(20) A TRIGGER A TRIG BW switch to FULL (AN/USM-488).
(21) A TRIGGER A&B INT switch to VERT MODE (type 2235).
(22) A TRIGGER A SOURCE switch to INT.
d. Press POWER pushbutton to ON and allow at least 20 minutes for warm-up.
e. Adjust A INTENSITY and FOCUS controls for suitable viewing.
a. Performance Check
(1) Connect oscilloscope calibrator CHAN 1 to TI CH 1.
(2) Set CH 1 VOLTS/DIV switch to 2m.
