Trio CS-1040, Instruction Manual, Page: 9 / 35

CONTROLS AND INDICATORS
FRONT PANEL
0 T
POSITION
Rotation adjusts vertical position of channel 1 trace.
In X-Y operation, rotation adjusts vertical position of
display.
(2) VOLTS/DIV
Vertical attenuator for channel 1; provides step adjustment
of vertical sensitivity. When VARIABLE control (3) is set to
CAL, vertical sensitivity is calibrated in 12 steps from
5 V/div to 1 mV/div.
For X-Y operation, this control provides step adjustment of
vertical sensitivity.
(3) VARIABLE Control
Rotation provides fine control of channel 1 vertical sen-
sitivity. In the fully clockwise (CAL) position, the vertical
attenuator is calibrated. For X-Y operation, this control
serves as the Y axis attenuation fine adjustment.
(4) AC-GND-DC
Three-position lever switch which operates as follows:
AC: Blocks dc component of channel 1 input signal.
GND: Opens signal path and grounds input to vertical
amplifier. This provides a zero-signal base line, the
position of which can be used as a reference when
performing dc measurements.
DC: Direct input of ac and dc component of channel 1
input signal.
(5) INPUT Jack
Vertical input for channel 1 trace. Vertical input for X-Y
operation.
(6) VOLTS/DSV
Vertical attenuator for channel 2; provides step adjustment
of vertical sensitivity. When VARIABLE control (7) is set to
CAL, vertical sensitivity is calibrated in 12 steps from
5 V/div to 1 mV/div.
In X-Y operation, this control provides step adjustment of
horizontal sensitivity.
(7) VARIABLE Control
Rotation provides fine control of channel 2 vertical sen-
sitivity. In the fully clockwise (CAL) position, the vertical
attenuator is calibrated. In X-Y operation, this control
becomes the fine horizontal gain control.
(8) AC-GND-DC
Three-position lever switch which operates as follows:
AC: Blocks dc component of channel 2 input signal.
GND: Opens signal path and grounds input to vertical
amplifier. This provides a zero-signal base line, the
position of which can be used as a reference when
performing dc measurements.
DC: Direct input of ac and dc component of channel 2
input signal.
Fig. 2