INTRODUCTION
The
principal
new
features
of
the
MTC
9000
are
as follows:
•
All
the controls which directly
affect
the display, horizontal frequency, vertical frequency, vertical
amplitude,
horizontal
amplitude,
horizontal
phase
and
vertical shift,
are
mounted
on a small
printed
circuit
board
connected
to
the
main
board
by
a
connecting
cable.
The monitor
is
supplied
complete
with a
connecting
cable
1.5 metres long,
which
permits
the
remote
mounting
of
the control
board
in
the
most
convenient
position for
any
particular
application.
This
"remote"
feature
is
exclusive to the Hantarex MTC 9000.
•Addition
of
two
connectors
to
each
deflexion yoke with inverted connexions which,
by
choice
of
connector,
permits
the easy inversion
of
the
image
both
vertically
and
horizontally for
certain
applications.
• Introduction
of
a novel
circuit
into
the
power
supply, which,
at
an
excessive
drop
in
supply
voltage,
transforms
the
stabilizer
circuit
into
an
anti-ripple
circuit
so
permitting
the use
of
the
monitor
outside the limits
of
stabilization.
•
Use
of
a
special
three-position switch
in
the
video
input
circuit
using close
tolerance
resitors,
permitting
the monitor
to
be
connected
to
input
signals varying
between
2
and
5 V p .p. without
the
introduction
of
tracking
errors,
which
would
otherwise
cause
undesirable
colour
changes.
• Introduction
of
a
new
integrated
circuit
(TDA
1670) for
vertical
deflexion
which
permits
the
achievement
of
a short
vertical
fly-back
time
(0.9 ms),
and
extends the use
of
the
monitor
where
a short vertical
blanking
period
is
required
.
• Introduction
of
a
new
integrated
circuit
in
the horizontal oscillator synchronization circuit, which,
among
other things,
provides for
more
accurate
intervention of the x-ray
protection
circuit
as required
by
the
principal
international safety
standars, such as F.D.A.,
the
Federal Drug Administration.
TECHNICAL
SPECIFICATION
TUBE
SIZE
POWER
REQUIRED
(excluding
degaussing)
14",
16"
and
20"
a.c.
current*
Voltage
Frequency
r.m.s. Current
d .c.
current**
Voltage
Current
115-142 V a .c.
50-400
Hz
at
lb
0 = 0.3 A
at
lb
1
mA,
= 0.7 A
155-200 V
d.c.
at
lb
0 = 0.3 A
at
ib
1
mA,
= 0. 7 A
*
IMPORTANT:
It
is
mandatory
to
use
an
isolating transformer with a
capacity
of
at
least 100 VA
built
to
local
safety standards.
Hantarex
declines
all responsibility for
eventual
damage
or
injury
caused
by
non
observance
of
the
above
standards.
•*
IMPORTANT:
It
is
mandatory
that
the
d.c.
supply
is
floating, viz. with
no
·
reference
to
earth
and/or
chassis (as
is
the
case
when
using
Hantarex
Power Supply
US
300)
POWER
REQUIRED
Voltage
220 V
a.c
.
±20%
50-60
Hz
(degaussing) Frequency
Current
4 A for
approx
0.2 s
EARTH
SAFETY
CONNEXION
This
connexion
must
be
made
to the
metallic
structure
of
the
monitor which
is
not
separable
from the
electrical
earth.
SYNC.
AND
DEFLEXION
Sync. signals
Composite:
Amplitude
1.5 - 5 V
p.p.
Polarity
positive/negative
(switchable
by
switch on
p.c.b.)
Timing conforms
to
t.v.
standards±
10%
Separate:
Amplitude
1.5 - 5 V p .p.
Polarity
positive/negative
(switchable
simultaneously* * *
by
switch on
p.c
.b.)
H width 1-10
us
H Freq. 15-16
kHz
V width 80-1000
us
V Freq. 45-70
Hz
H Phase with
standard
European t.v. signals the H
phase
control
permits a
displacement
of
the
image
(of
nominal
ampl
.)
of±4
cm
V Linearity errors <
3%
H Linearity errors < 3%
H
Amplitude
with
standard
European t.v. - signals
the
H
ampl
. permits
active
video
of
40-51
us
.
V
Amplitude
with
standard
European t.v. signals the V
ampl.
permits
active
video
of
16-19
ms
.
·
•*
The polarity
of
the
separate
synchronizing pulses
can
be
different
(between
H
and
V)
only by
modification
of
the
circuit
,
substituting
the
switch
by
a
bridge.
VIDEO
SIGNAL
Type
Polarity
Amplitude
Bandwidth
Rise/Fall Time
RGB
anal/TIL
compat.
positive, white (high-level)
2-5 V
p.p.
(by use
of
input
switch)
10
MHz
at
40 V
pp.
< 50
ns
at
70 V p.p.
NOTE
(a): The
MTC
9000
is
provided
with
both
horizontal
and
vertical
blanking
signals,
which
permits
the
use
of
the
monitor with
signals without
blanking.
(b): The three
RGB
video
amplifiers
are
d .c.
coupled:
there
is
thus
no
lower limit
to
the
pass
band.
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