Elenco 30MHz Dual Trace - Manual (Page 36)

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CONTROLS AND INDICATORS
CH 1 (X) VOLTS/DIV Control(4):
Vertical attenuator for channel 1. Provides step adjustment of vertical
sensitivity. When channel 1 VARIABLE control is set to CAL, vertical sensitivity
is calibrated in 10 steps from 5 mV/DIV TO 5 V/DIV in a 1-2-5 sequence. When
the X-Y mode of operation is selected, this control provides step adjustment of
X-axis sensitivity.
CH 1 VARIABLE/PULL X5 MAG Control(5):
VARIABLE: Rotation provides vernier adjustment of channel 1 vertical
sensitivity. In the fully-clockwise(CAL) position, the vertical attenuator is
calibrated. Counterclockwise rotation decreases deceases gain sensitivity. In
X-Y operation, this control becomes the vernier X-axis sensitivity control.
PULL X5 MAG: When pulled out, increases vertical sensitivity by a factor of
five. Effectively provide two extra sensitivity settings: 2 mV/DIV and 1 mV/DIV.
In X-Y mode, increases X-sensitivity by a factor of five.
CH 1 POSITION/PULL CHOP Control(27):
POSITION: Rotation adjusts vertical position of channel 1 trace.
PULL CHOP: When this switch is pulled out in the dual-trace mode, the
channel 1 and channel 2 sweeps are chopped and displayed simultaneously
(normally used at slower sweep speeds.) When it is pushed in, the two sweeps
are alternately displayed, one after the other (normally used at higher sweep
speeds.)
CH 2 POSITION/PULL INVERT Control(25):
POSITION: Rotation adjusts vertical position of channel 2 trace. In X-Y
operation, rotation adjusts vertical position of X-Y display.
PULL INVERT: When pushed in, the polarity of the channel 2 signal is normal.
When pulled out, the polarity of the channel 2 signal is reversed, thus inverting
the waveform.
CH2 VOLTS/DIV Control(10): Vertical attenuator for channel 2. Provides step
adjustment of vertical sensitivity. When channel 2 VARIABLE control is set to
CAL, vertical sensitivity is calibrated in 10 steps from 5 mV/DIV to 5 V/DIV in a
1-2-5 sequence. When the X-Y mode of operation is selected, this control
provides step adjustment of Y-axis sensitivity.
CH 2 VARIABLE/PULL X5 MAG Control(11):
VARIABLE: Rotation provides vernier adjustment of channel 2 vertical
sensitivity. In the fully-clockwise (CAL) position, the vertical attenuator is
calibrated. Counterclockwise rotation decreases gain sensitivity. In X-Y
operation, this control becomes the vernier Y-axis sensitivity control.