Options; Controls And Connectors; General; Cathode-Ray Tube (Crt) And Display - Tektronix 475 Technical Manual

TM 11-6625-2735-14-1
Fig. 2-1. Reguiating Range Selector and Line Fuse.
5. Check Table 2-1 for the recommended range posi-
tion of the Range Selector Switch Bar (see Figure 2-1).
Select a range which is centered about the average line
voltage to which the instrument is to be connected. The
middle position ("M") is a typical setting.
6. If necessary, gently pull out the Range Selector
Switch Bar, slide the bar to the desired position and plug it
back in.
7. Install the cover on the Regulating Range Selector
assembly and gently tighten the 2 captive screws.
8. Connect the instrument to the recommended power
source, pull the instrument POWER switch to ON and
begin usage of the 475 Oscilloscope.

Options

Options are available to alter oscilloscope performance
to meet particular applications. A number in either MOD
slot (see instrument rear panel) indicates that the instru-
ment contains an option.
Refer to the Option section in this manual to find any
change in operating instructions as a result of the option.
2-2

CONTROLS AND CONNECTORS

General

The major controls and connectors for operation of the
475 are located on the front panel of the instrument. A few
auxiliary functions are provided on the rear panel. Fig. 2-2
shows the front and rear panels of the 475. A brief
description of each control and connector is given here.
More detailed operating information is given in the 475
Oscilloscope Operators Manual.

Cathode-Ray Tube (CRT) and Display

BEAM FINDER
INTENSITY
FOCUS
SCALE ILLUM
ASTIG
TRACE ROTATION
Vertical Deflection System (Channel 1 & Channel 2)
POSITION
CH1 OR X
Limits the display to within the
graticule area, independently of
display position or applied
signals and sets the display
brightness to a normal viewing
level.
Controls brightness of the dis-
play.
Provides adjustment for op-
timum display definition.
Controls graticule brightness.
Screwdriver adjustment used in
conjunction with the FOCUS
control to obtain a well-defined
display. Does not require read-
justment in normal use.
Screwdriver adjustment to align
the trace with the horizontal
graticule lines.
Controls the vertical position of
the trace. In the X-Y mode of
operation, the CH 2 control
positions on the Y-axis (ver-
tically) and the CH 1 POSITION
control positions on the X-axis
(horizontally).
Input connector for Channel 1
deflection signals or X-axis
deflection in the X-Y mode of
operation.