Controls, Connectors, and Indicators
Crt, Power, and Display
Refer to Figure 2-1 for location of items 1 through 9.
M J POWER Switch—Turns on or off instrument power. Press for ON or
OFF.
At least one VERTICAL MODE button will light when the power is
turned on. The front-panel setup existing when the power is turned off
will return when the power is turned on again.
© A INTEN Control—Adjusts the brightness of the A trace.
® B INTEN Control—Adjusts the brightness of the B Delayed sweep
trace and the intensified zone on the A trace.
® FOCUS Control—Adjusts the focus of the crt displays (traces,
readout, and cursors).
TRACE ROTATION Control—Aligns the crt trace with the horizontal
graticule lines. This is a screwdriver adjustment.
(jP ) READOUT Control—Adjusts the brightness of the crt readout display
(includes all alphanumerics and cursors).
© SCALE ILLUM Control—Adjusts the illumination level of the
graticule.
NOTE
Life of the graticule illumination lamps can be increased by
setting the SCALE ILLUM control for the minimum intensity
needed for viewing, and turning off scale illumination when
not needed.
( © BEAM FIND Button—Locates off-screen and overscanned displays
when the button is held in. Limits the vertical and horizontal deflection
within the display area and unblanks the crt.
2245A Operators 2-1
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