Tektronix 475 User Manual

Operating Information—475
switch. An intensified portion
appears on the display during
the B sweep time. This switch
position provides a check of the
duration and position of the B
sweep (delayed sweep) with
respect to the delaying sweep
(A).
B DLYD: Sweep rate determined
by the B TIM E /D IV switch with
the delay time determined by
the setting of the DELAY TIME
(A TIM E /D IV) switch and the
DELAY-TIME POSITION dial.
Horizontal POSITION Positions the display horizontally.
PROBE POWER Connectors that make operating
power available for active device
probe systems.
OBTAINING BASIC DISPLAYS
Introduction
The following instructions will allow the operator who is
unfamiliar with the operation of the 475 to obtain the basic
displays commonly used. Before proceeding with these
instructions, preset the instrument controls as follows:
X I0 MAG Increases the displayed sweep rate
by a factor of 10.
Calibrator and Power
CALIBRATOR
A combination current loop/square-
wave voltage output device.
Vertical Controls
VERT MODE Switch
VOLTS/DIV Switches
VOLTS/DIV VAR
Controls
Input Coupling Switches
Vertical POSITION
CH 1
Proper position determined
by amplitude of signal
to be applied.
Calibrated detent.
AC
POWER
LOW LINE
Rear Panel
A +GATE
B +GATE
Provides a 30 mA squarewave
Controls
Midrange
current, 300 mV squarewave volt
20 MHz BW Switch
Not limited
age signal with a repetition rate of
INVERT Switch
Button out
approximately 1 kHz. INTENSITY Control
Fully counterclockwise
FOCUS Control
Midrange
Turns instrument power on and off.
SCALE ILLUM Control
Midrange
Light that indicates the applied line
voltage is below the lower limit of
Trigger Controls (both A ahd
B if applicable)
the regulating range selected by the
R e g u la tin g Range Selector
assembly.
SLOPE Switch
LEVEL Control
SOURCE Switch
+
0
NORM
COUPLING Switch
AC
TRIG MODE Switch
A TRIG HOLDOFF
AUTO
Output connector providing a
Control
NORM
positive-going rectangular pulse
coincident with the A sweep time.
Output connector providing a
positive-going rectangular pulse
coincident with the B sweep time.
CH 2 VERT SIGNAL Output connector providing a
OUT sample of the signal applied to the
CH 2 input connector.
EXT Z AXIS INPUT Input connector for intensity
modulation of the CRT display.
Horizontal Sweep Controls
TIM E/D IV Switches
TIM E/DIV VAR
HORIZ DISPLAY Switch
X I0 MAG Switch
POSITION Control
Locked together at 1 ms
Calibrated detent
A
Off (button out)
Midrange
Regulating Range
Selector
Selects the regulating range of the
internal power supplies (low,
medium, high; determined by
specific line voltage applied to
instrument).
Normal Sweep Display
1. Set the POWER switch to on (button out). Allow
several minutes for instrument warmup.
2. Connect the external signal to the CH 1 input
connector.
2-6
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Tektronix 475 Specifications

General

Brand	Tektronix
Model	475
Category	Test Equipment
Language	English