ENGLISH
DETAILS AND INOVATIONS
OF
THE MTC 9110 -
25"-28"
1)
The MTC 9110 monitor has been designed for maximum versatility,
so
allowing
it
to
be
used with almost
any logic board.
2)
The 'monolithic' construction, using a single printed circuit board, makes maximum use
of
the automatic
insertion of components, which, being free of human error, guarantees a high
level of production
uniformity
coupled with a high level of reliability.
3)
Completely new mechanical design with the specific object of making the unit extremely resistant to
impact and vibration during transportation.
4)
Use
of two connectors (CL and
CM
on
the printed circuit board) for the deflexion unit with cross-over
wiring which permits easy inversion and
reversal of the image - often
an
indispensable feature.
5)
The electronics for the
25"-28"/110°
incorporates a thermostat mounted
on
the heat sink
(on
the side
of TR
BU
508) which guarantees
an
exceptionally high degree of product safety and reliability.
The thermostat comes into operation if its temperature reaches 75-80°, interrupting the 130 V d.c.
supply so bringing the fault
to
the attention of the operator. This could happen if, for example, the
ventilator failed, or the monitor were used
in
conditions of extreme ambient temperature.
6)
All the controls which affect the display (horizontal and vertical frequency, horizontal and vertical
amplitude,
horizon_tal
phase and vertical shift) are mounted
on
a small separate p.c.b. which
is
normally
plugged
into a connector
on
the main board, but may
be
used
in
conjunction with a 1.5 metre long
extension cable that
is
available
on
request. This allows the control card to
be
mounted
in
a specially
moulded
mounting bracket
in
a position where the operator can easily adjust the monitor while directly
viewing the image.
7)
The video input is fed via a precision three-gang potentiometer permitting acceptance of input signals
in
the range 1 to 5 V p.p. without creating changes
in
colour balance.
8)
Utilization of a new integrated circuit for vertical deflexion
(TOA
1670A) resulting
in
the short vertical
fly-back
time of 0.7 ms,
so
extending the range of logic board usage.
9)
Incorporation of a new integrated circuit
in
the horizontal sync. circuitry. This l.C. guarantees a positive
protection against x-ray radiation and conforms with the
principal international public health regulations,
such
as
F.D.A. Federal Drug Administration.
7
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