Tektronix 543B, Instruction Manual

Page: 82 / 90

TIME BASE TRIGGER
IMPORTANT
Waveforms closely approximate those found in this instrument, provided
controls are set as indicated below and on each diagram.
Voltage
readings were taken with a 20,000 ohms/volt voltmeter.
Before starting to check this instrument the following controls should be
set, and not disturbed
unless otherwise noted on the diagram being
used. Return controls to the positions listed below before moving to the
next diagram.
AMPLITUDE CALIBRATOR
HORIZONTAL DISPLAY .
SINGLE SWEEP..............
VARIABLE ....................
OFF
NORMAL
(XI)
NORMAL SWEEP
Clockwise
TIME/CM .................................... ImSEC
TRIGGERING MODE ................ DC
TRIGGER SLOPE......................... + EXT
TRIGGERING LEVEL .................. Clockwise
STABILITY ................................... PRESET
WAVEFORMS AND VOLTAGE READINGS were obtained under the fol­
lowing conditions:
TRIGGER SLOPE .................................... -LINE
TRIGGERING LEVEL
For Waveforms .............. ................ Centered
For Upper Voltage Reading........... Counterclockwise
For Lower Voltage Reading .......... Clockwise