Philips PM 3207 - Page 6

4.1.
4.2.
Local mains (line) connection
Before
connecting
the
instrument
to
the
mains
(line),
make
sure
that
it
is
set
to
the
local
mains
(line)
voltage.
On
delivery,
the
instrument
is
set
to
110
V,
220
V
or
240
V,
which
is
indicated
on
the
rear
of
the
instrument.
If
the
instrument
has
to
be
set
to
another
voltage
as
indicated,
contact
your
local
service
organisation.
Controls and sockets
Cathode-ray tube and power controls
1.
POWER
Mains
switch;
pilot
lamp
indicates
the
ON-state
2.
INTENS
Trace-brillance
control;
clockwise
turning
increases
brillance
of
the
trace
(spot)
3.
FOCUS
Beam-focussing
control;
enables
focussing
of
beam
for
minimum
spot
size.
For
correct
display
FOCUS
and
INTENS
should
be
optimally
adjusted.
Vertical deflection
4.
POSITION
Control
(by
turning)
for
vertical
shifting
of
the
trace
(spot)
5.
AMPL/DIV
Control
of
vertical
deflection
coefficients,
OFF
ranging
from
5
mV/DIV
up
to
10
V/DIV
ina
1-2-5
sequence.
In
the
"OFF’’-position
the
input
is
floating
and
no
trace
will
be
displayed.
If
both
“AMPL/DIV"
switches
are
in
'OFF"-position,
the
base
line
of
channel
B
is
displayed
only.
6.
AC
Input
signal
coupled
via
a
blocking
capacitor
and
=
the
DC
component
is
blocked.
DC
Input
signal
directly
coupled.
7.
A&B
Both
channels
are
displayed,
chopped
(ms)
or
—-
alternated
(Us).
ADD
Sum
signal
of
channels
A
and
B
will
be
displayed
(see
“+/—"'),
8.
Ei
Slide
switch:
In
'’+’'
position
for
usual
operation.
-
In
"—"'
position
the
inverted
signal
of channel B will be displayed.
In combination with ADD, A-B will be displayed.
9.
A
BNC-socket
for
channel
A
input.
10.
B
BNC-socket
for
channel
B
input.
Time-base
and
horizontal
deflection
11.
X
POSITION
Control
(by
turning)
for
horizontal
shifting
of
the
trace
(spot).
12.
LEVEL
Control
for
adjusting
the
point
(level)
on
the
input signal slope from which the trigger signal
is derived.