Sencore PS163 User Manual

INPUT COUPLING SWITCH
This switch is used to select the method of coupling
the input signal to the amplifier. Use the AC COUP-
LED position for normal peak to peak waveform
measurements. Use the DC COUPLED position when
you wish to measure DC voltage. Use the center
ground position to establish a zero reference for the
amplifier.
DC BALANCE
This control is used to maintain the DC balance of
the amplifier. Its function is similar to the zero ad-
just control on a VTVM. Should this control require
adjustment, follow the procedure outlined in the
CALIBRATION section of the Service Manual.
CAL. VOLTS 2V PP
A 2 volt peak to peak square wave output is provided
on the front panel of the 25163 as a calibration check
voltage and probe adjustment signal. The LO CAP
PROBES may require a periodic checking for proper
frequency compensation.
TRACE POSITION
This control normally adjusts the vertical position of
the trace. The CHANNEL B TRACE POSITION
control becomes a horizontal position control in the
VECTOR function.
\
REAR PANEL INPUTS
and CONTROLS
Access to the vertical deflection plates, the “Z” axis
input and a sweep output signal are all available on
the rear access panel of the PS163.
SWEEP OUT
This is a 15 volt peak to peak negative going saw-
tooth signal with frequency determined by the time
base switch. This is isolated from the time base cir-
cuit by an emitter follower for protection. Its uses
include coil and flyback testing.
“Z” AXIS INPUT
The Z axis input is used when you desire to intensity
modulate the CRT beam. The switch to the right of
the yellow jack controls the input. The OFF position
allows normal scope operation with the Z AXIS IN-
PUT jack disconnected. The ON position connects
the Z AXIS INPUT jack to the cathode of the CRT
through an isolation capacitor. This switch should be
in the OFF position on normal scope operation.
VERT. DEF. PLATES
These jacks provide access to the vertical deflection
plates of the CRT. This allows the 251683 to be used
for a modulation monitor or lab experiments. When
the switch directly above the jacks is in the NORM
position, the jacks are disconnected. This is the
switch position for normal scope operation. With the
switch in the EXT position, the signal fed into the
jacks is applied to the vertical deflection plates. The
front panel TRACE POSITION controls position the
beam on the scope screen.
10
ASTIGMATISM CONTROL
This control is adjusted along with the FOCUS con-
trol for a sharp trace in the center of the oscilloscope
screen, and is located directly below the rear access
panel.
CIRCUIT BREAKER
The power supply of the PS163 incorporates a cir-
cuit breaker for protection. Should a power supply
overload occur, the breaker will trip. Reset by press-
ing red button fully in and releasing.
SWEEP OUT EXT
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VERT DEF PLATES
Z INPUT
OFF ON

Sencore PS163 Specifications

General

Brand	Sencore
Model	PS163
Category	Test Equipment
Language	English