Advertisement
2-1-3 Sweep and Trigger Blocks
(23) HORIZ DISPLAY switches
(24) A TIME/DIV switch
(25) B TIME/DIV switch
(26) DELAY TIME POS control
(27) A VARIABLE control
(27) PULL X 10 MAG switch
(on A VARIABLE control)
(28) UNCAL lamp
(29) Horizontal POSITION control
To select the sweep mode.
A pushbutton sweeps the CRT at the main (A)
timebase rate when pressed.
A INT pushbutton sweeps the CRT at the main (A)
timebase rate when pressed, and the B timebase
intensifies a section of the trace(s). The
location of the intensified section is determined
by the DELAY TIME POS controL
B pushbutton sweeps the CRT at the rate selected
by the B TIME/DIV switch, after a delay
determined by the A TIME/DIV switch and the
DELAY TIME POS controL
B TRIG'D pushbutton sweeps the CRT at the rate
selected by the B TIME/DIV switch when
triggered by the first trigger pulse occuring after
the delay time determined by the A TIME/DIV
switch and the DELAY TIME POS controL
To select either the calibrated sweep rate of the
main (A) timebase, the delay-time range for
delayed-sweep operation, or X-Y operation.
To select the calibrated sweep rate of the
delayed (B) timebase.
To determine the exact starting point within the
A time base delay range at which the B timebase
will begin sweeping.
Provides continuously variable adjustment of
sweep rate between steps of the A TIME/DIV switdn
TIME/DIV calibrations are accurate only when the
A VARIABLE control is click-stopped fully clockwise
To expand the horizontal deflection by 10 times,
thus increasing horizontal sensitivity by 10 times
for X-Y operation, and increasing the effective
sweep speed by 10 times.
Indicates when A VARIABLE controls rotated out
of its click-stopped position.
To adjust the horizontal position of the traces
displayed on the CRT. Clockwise rotation moves
the traces to the right, counterclockwise rota
tion moves the traces to the left.
Advertisement
