Sencore PS163 User Manual

OPERATING INSTRUCTIONS
INITIAL FAMILIARIZATION󰾰 ل
This section contains a simple procedure that you can
use to get acquainted with the operation of the con-
trols on the PS163 oscilloscope.
SET UP
1. Plug the PS163 into a properly grounded AC out-
let and slide the OFF - ON switch to the ON position.
Note the indicator directly above the switch.
2. Use the 39G34 LOW CAPACITY PROBES to con-
nect the CAL. VOLTS 2V PP output to the CHANNEL
A and B inputs.
3. Set the front panel controls as follows:
SCALE ILLUMINATION GRID
HORIZONTAL SYNC INT.A
SYNC POLARITY POSITIVE
HORIZONTAL SWEEP AUTO TRIGGERED
TIME BASE - FREQUENCY .5mSec./DIV
(Center knob full clockwise)
VERTICAL INPUT DUAL ALTERNATE
PPV PER DIV. (A&B) 1V/DIV
Center knob full clockwise
INPUT COUPLING (A&B) AC COUPLED
4. Adjust the FOCUS and INTENSITY controls for
a sharp trace with useable brightness: Adjust the
HORIZONTAL POSITION control so that the trace
starts at the left hand edge of the 10x10 grid.
5. Use the CHANNEL A TRACE POSITION control
to center the CHANNEL A trace in the upper half of
the oscilloscope screen, and the CHANNEL B TRACE
POSITION CONTROL to center the CHANNEL B
trace in the lower half of the oscilloscope screen.
CONTROL FUNCTIONS
DUAL CHANNEL VERTICAL INPUT
Press the A and B VERTICAL INPUT buttons. Note
that with the A button pushed, only the CHANNEL
A waveform is displayed. The CHANNEL B wave-
form is displayed when the B button is pressed.
Press the DUAL ALTERNATE and DUAL CHOPPED
buttons and note that both the CHANNEL A and
CHANNEL B waveforms are displayed. (When the
chopped button is pushed, the waveform may not be
stable. This is due to the influence of the 100KHz
chopping signal on the trigger circuit when in the
AUTO TRIGGERED mode.)
Press the VECTOR A&B INPUTS button, and note
that the display is now two dots connected by a dim
line. Adjust the CHANNEL A TRACE POSITION,
and the CHANNEL B TRACE POSITION controls,
and note that the CHANNEL A TRACE POSITION
effects the vertical position of the display, and that
the CHANNEL B TRACE POSITION effects the
horizontal position of the display. Slide the SCALE
ILLUMINATION switch to the VECTOR position,
and note that the scale is now illuminated for the
standard 10 bar color TV vector pattern. Return
the SCALE ILLUMINATION switch to the GRID
position, and press the A VERTICAL INPUT button.
HORIZONTAL SWEEP and SYNC
Press the MANUAL TRIGGERED HORIZONTAL
SWEEP button, and adjust the SYNC LEVEL control
for a locked in pattern. Note the range of rotation of
the SYNC LEVEL control that produces a trace. Tum
the CHANNEL A PPV PER DIV switch to the 10
position, and again adjust the SYNC LEVEL control.
Note the range of rotation that produces a trace is
narrower than before.
Turn the CHANNEL A PPV PER DIV switch to the
100 position, and try to adjust the SYNC LEVEL con-
trol for a trace. Note that with this small of a deflec-
tion on the screen it is nearly impossible to obtain a
trace in the MANUAL TRIGGERED MODE.
Press the INT. B HORIZONTAL SYNC button, and
note that the range of the SYNC LEVEL control is
now the same as when the CHANNEL A PPV PER
DIV. switch was set to the 1V/DIV. This shows that
even though CHANNEL A is the displayed channel,
sync may still be taken from the channel not displayed,
in this case CHANNEL B.
Press the EXT. HORIZONTAL SYNC button, and con-
nect a jumper wire from the CAL. VOLTS 2V PP out-
put to the EXTERNAL TRIGGER jack. Adjust the
SYNC LEVEL control, and note the range that pro-
duces trace. This shows the sensitivity of the PS163
to an external trigger signal.
Press the AUTO TRIGGERED HORIZONTAL SWEEP
button, and the INT. A HORIZONTAL SYNC button.
Note that the trace now appears on the screen. This
is the advantage of the AUTO TRIGGERED mode.
A trace will be produced even in the absence of a
signal.
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Sencore PS163 Specifications

General

Brand	Sencore
Model	PS163
Category	Test Equipment
Language	English