Tektronix CURVE-TRACER 576 Instruction Manual page 22

0 perating Instructions-Type 576
DISPLAY OFFSET
Selector Switch
CENTERLINE
VALUE Switch
HORIZONTAL
VOLTS/DIV
Switch
2-4
EMITTER-Operation of instru-
ment with MODE switch set to
LEAKAGE (EMITTER CUR-
RENT). Vertical display represents
emitter current. Use orange units to
determine vertical deflection factor.
STEP GEN-Steps indicating Step
Generator output are displayed
vertically. AMPLITUDE switch set-
ting per division determines vertical
deflection factor.
Allows selection of display offset or
display offset and magnification.
NORM (OFF)-Display offset is not
operable.
HORIZ X1-AIIows horizontal dis-
play to be offset using calibrated
CENTERLINE VALUE switch.
VERT X1-AIIows vertical display
to be offset using calibrated CEN-
TERLINE VALUE switch.
H 0 R I Z X 1 0-Horizontal display
magnified by 10 times. Allows hori-
zontal display to be offset using
calibrated CENTERLINE VALUE
switch.
VERT X10-Vertical display magni-
fied by 10 times. Allows vertical
display to be offset using calibrated
CENTERLINE VALUE switch.
(Clear plastic flange with numbers on
it) Provides calibrated offset of dis-
play.
Xl (VERT or HORIZ)-Number on
CENTER L I N E VALUE switch
appearing in blue window repre-
sents number of divisions centerline
of display is offset either vertically
or horizontally from zero offset
line.
X10 (VERT or HORIZ)-Number
on CENTERLINE VALUE switch
appearing in blue window multi-
pi ied by 1 0 represents number of
divisions centerline of display is off-
set either vertically or horizontally
from zero offset line.
Selects the horizontal deflection factor
of display.
C 0 LLECTOR-Horizontal display
represents collector voltage to
ground.
BASE -Horizontal display repre-
sents base voltage to ground.
STEP GEN-Steps indicating Step
Generator output are displayed
horizontally. AMPLITUDE switch
setting per division determines hori-
ZERO Button
CAL Button
zontal deflection factor.
Provides a zero reference for the dis-
play.
NORM-When DISPLAY OFFSET
selector switch is set to NORM
( 0 F F) , ZERO button provides
point on CRT of zero vertical and
horizontal-deflection for adjusting
position controls.
DISPLAY OFFSET-When DIS-
PLAY OFFSET Selector switch is
in one of four display offset posi-
tions, ZERO button provides ref-
erence point on CRT which must
be positioned to vertical centerline
(horizontal offset) or to horizontal
center! ine (vertical offset) to insure
that the CENTERLINE VALUE
switch setting applies to centerline.
(Should always be checked with
DISPLAY OFFSET Selector switch
set to MAGNIFIER.)
Provides signal which should cause 10
divisions of vertical and horizontal de-
flection for checking calibration of
vertical and horizontal amp! ifiers.
NORM-When DISP' AY OFFSET
selector switch is set to NORM
(OFF). CAL button provides point
on CRT of 10 divisions of vertical
and horizontal deflection.
DISPLAY OFFSET-When DIS-
PLAY OFFSET Selector switch is
in one of four display offset posi-
tions, CAL button provides signal
which should cause reference point
on CRT to appear on vertical cen-
terline (horizontal offset) or on
horizontal centerline (vertical off-
set), assuming zero reference point
was properly adjusted. (Check
should be performed with DIS-
PLAY OFFSET Selector switch set
to MAGNIFIER.)
DISPLAY INVERT Inverts display vertically and horizon-
Button tally about center of CRT.
POSITION Switch Provides coarse positioning of horizon-
(Horizontal) tal display.
FINE POSITION
Control
(Horizontal)
Provides fine positioning of horizontal
display.
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POSITION Switch
(Vertical)
Provides fine positioning of vertical
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display.
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