6
VOLTS/DIV
VARIABLE
UNCAL
STEP ATTEN BAL
Input Coupling
(AC·GND·DC)
Vertical (both channels
except'~s
noted)
GND: (Ground) Input circuit
is
grounded (does
not
ground ap-
plied signal).
Selects vertical deflection
factor
in
1-2-5 sequence (VAR lAB
LE
con-
trol
must
be
in
CALposition
for
indicated deflection factor).
Provides continuously
variC!ble
un-
c a Iibrated
deflection'
fa~t6rs
be-
tween
the
calibrated settings
of
the
VOLTS/DIV switch.
(Uncalibrated) Light indicates
that
the
VARIABLEcontrol.is
not
in
the
CAL positioh.
(Step
Attenuator
Balance) Screw-
driver
adjustment
to
balance
Input
Amplifier
in
the
2, 5
and
10
mV
positions
of
the
VOL
TS/DIV
switch.
Selects
method
of
coiJpling
input
signal
to
grid
of
Input
Amplifier.
AC:
DC
component
of
input
signal
is
blocked. Low frequency lim it
(-3
dB point)
is
about
10
hertz.
PROBE POWER
MODE
454A
DC: All
components
of
the
input
signal are passed
to
the
Inrut
Amplifier.
Power
source for active
probesys-
.'tems.
Selects vertical mode
of
operation.
CH
.1:
The
signal
connected
to
the
INPUT
CH
1
connector
is
dis-
played.
CH
2:
The
signal connected
to
the
INPUT
CH
2
connector
is
dis-
played.
AL
T:
(Alternate) Dual-trace display
of
'signals
at
both
channels. Dis-
play switched
at
end
of
each
sweep.
CHOP: Dual-trace display
of
signals
on
both
channels.
Display
switched between channels
at
a
repetition
rcite
of
about
one
megahertz.
®
.,
','
._.";,
'I
..
;-~,
.'
•..
':.r,:
'.'
.
~ ~'
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