TB 9-6625-2164-35
az. Press TRIGGERING/MODE P/P pushbutton.
ba. Adjust TRIGGERING LEVEL control fully cw.
bb.Adjust CURSORS ⇐ 1 ⇒ T=0.0S. Triggering point (CURSOR dot) will indicate
between 0.8 and 1.2 divisions below sine wave positive peak; if not, adjust P-P RANGE
R541 (fig. 3) for the (CURSOR dot) position to fall between 0.8 and 1.2 divisions below sine
wave positive peak.
bc. Adjust TRIGGERING LEVEL control fully ccw, and press - SLOPE (+SLOPE
pushbutton not lighted).
bd.Triggering point (CURSOR dot) will indicate between 0.8 and 1.2 divisions above
sine wave negative peak; if not, adjust P-P RANGE R541 (fig. 3) for best compromise to
meet requirement of bb through bd above.
be. Press TRIGGERING/MODE AUTO and TRIGGERING/+SLOPE pushbuttons.
bg. Adjust TRIGGERING LEVEL control for -1.28 V, + 10 mV indication on multimeter.
frequency to 1 kHz and amplitude for 0.4 divisions on TI display.
bi. The 1 kHz sine wave will remain triggered while switching between AUTO +
SLOPE and AUTO - SLOPE without readjusting TRIGGER LEVEL control; if not,
repeat steps w through au above.
bj. While switching between the P-P + SLOPE and P-P - SLOPE, observe that the
1 kHz remains triggered without adjusting the TRIGGER LEVEL.
NOTE
If the requirements of bi and bj above are met, ignore the
remainder of this step (bk through bs) below.
bk.Press CH 1 GND pushbutton.
bl. Press TRIGGERING MODE/AUTO, COUPLING/AC and + SLOPE pushbuttons.
R546 (fig. 3) for + 10.0 mV indication on multimeter.
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