TM 11-6625-2735-14-1
LOW LINE
Indicator
Rear Panel
A + GATE
B + GATE
Light that indicates the applied
OBTAINING BASIC DISPLAYS
line voltage is below the lower
limit of the regulating range
Introduction
selected by the Regulating
Range Selector assembly.
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:
Output connector providing a
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
Regulating Range
Selector
PROBE POWER
Rear Panel
Feet
Input connector for intensity
modulation of the crt display.
Selects the regulating range of
the internal power supplies
(low, medium, high; determined
by specific line voltage applied
to the instrument).
Connectors that make
operating power available for
active device probe systems.
Vertical Controls
VERT MODE Switch
VOLTS/DIV Switches
VOLTS/DIV VAR
Controls
Input Coupling
Switches
Vertical POSITION
Controls
100 or 20 MHz
BW Switch
INVERT Switch
INTENSITY Control
FOCUS Control
SCALE ILLUM
Control
CH 1
Proper position determined by
amplitude of signal to be
applied.
Calibrated detent.
AC
Midrange
Not limited (Yellow band not
visible).
Button out
Fully counterclockwise
Midrange
Midrange
Trigger Controls (both A and B if applicable)
SLOPE Switch
LEVEL Control
SOURCE Switch
COUPLING Switch
TRIG MODE Switch
A TRIG HOLDOFF
Control
+
0
NORM
AC
AUTO
NORM
Horizontal Sweep Controls
TIME/DIV Switches
Locked together at 1 ms
TIME/DIV VAR
Calibrated detent
HORIZ DISPLAY
Switch
A
X10 MAG Switch Off (button out)
POSITION Control
Midrange
FINE Control
Midrange
Normal Sweep Display
Provide temporary support for
1. Pull the POWER switch to on (button out). Allow
the instrument and provide a
several minutes for instrument warmup.
convenient cord wrap to store
power cord when instrument is
2. Connect an external signal to the CH 1 input
not in use.
connector.
2-8
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