Operating Information-314
Service
15. CH 2 VOLTS/DIV-This control selects calibrated
deflection factors from 1 mV/DIV to 10 V/DIV in a 1-2-5
sequence.
16. CH 1 POSITION-This control vertically positions
the channel 1 display.
17. VARIABLE-When this control is out of the CAL
position, it provides uncalibrated deflection factors
between calibrated steps. It extends the uncalibrated
range to 25 V/DIV.
18. lnput Coupling lndicator and switch, channel 1.
AC-out position. Blocks dc component of input
signal.
GND-middle position. The channel vertical amplifier
input is grounded.
23. ENHANCE LEVEL-This control adjusts the
single-sweep stored writing speed.
24. STORE-With this button pushed in, the instru-
ment is in storage mode. When the button is out, the
instrument is in non-storage mode.
25. ENHANCE-Pushing this button in increases the
single-sweep writing speed.
26. AUTO ERASE-With this button pushed in, an
erase occurs after each sweep, when both AUTO and
NORM buttons are pushed in.
27. ERASE-Pressing this momentary contact switch
erases the stored display.
28. INTEGRATE-This is a momentary contact but-
ton. On repetitive signal, parts of which are too fast to store
normally, hold the button in to permit a charge to build up
on the target before the signal is stored.
DC-in position. All components of the input signal are
presented to the vertical amplifier input.
Horizontal
19. CH 2 POSITION-This control vertically positions
the channel 2 display.
20. VARIABLE-When this control is out of the CAL
position, it provides uncalibrated deflection factors
between calibrated steps. It extends the uncalibrated
range to 25
V/DIV.
21. lnput Coupling Indicator and switch, channel 2.
AC-out position. Blocks dc component of input
signal.
GND-middle position. The channel vertical amplifier
input is grounded.
DC-in position. All components of the input signal are
presented to the vertical amplifier input.
Storage
22. VIEWING TIME-This control adjusts the viewing
time from about 1 second afterthe end of sweep to about 5
seconds after the end of sweep.
29. TIME/DIV-This switch selects calibrated sweep
rates from 5 seconds to 1 microsecond/division, in a 1-2-5
sequence.
30. Variable-When this control is out of CAL position,
it varies the Time/Div between calibrated steps. The range
is at least 2.5X. The Uncalibrated sweep rate is extended to
at least 12.5 seconds/div.
31. AUTO-With this button pushed in, the sweep free
runs in the absence of a trigger signal.
32. NORM-With this button pushed in, the sweep
generator requires a trigger signal to generate
a
sweep.
NOTE
With AUTO and NORM buttons both in, the sweep
runs one time on the first triggering event after
pressing RESET button.
33. POSITION-This control positions the display
horizontally.
34. SWEEP MAG-When set to
X1 the sweep is
unmagnified. In the XI0 position, the horizontal gain