Acorn AKF 30 User manual

COLOUR MONITOR
USER GUIDE
AKF 30/40

English Operating Instructions Attention!
Page 1-6 • Always open this flap page first.
Deutsch Bedienungsanleitung Achtung!
Seite 7-11 • Immer zuerst dieses
Umschlagblatt Offnen.
Francais Mode d'emploi Attention!
Page 12-16 • Commencez toujours par ouvrir ce
rabat.
Italiano Istruzioni per l'uso Attenzione!
Pagina 17-21 • Aprire sempre prima questa
pagina peighevole.
Espanol Instrucciones AtenciOn!
de manejo • Abrase siempre antes que nada
Pagina 22-26 esta pagina.

Introduction
This guide covers the AKF 30 and AKF 40
monitors, the only difference being cabinet
colour.
This colour monitor is suitable for use with
the Acorn range of 32 bit computers using
either the RISC OS or RISC IX operating
systems. These computers have analogue
RGB video output.
The drawings in the text are accompanied by
figures, e.g. 1 . These correspond to the
figures on the fold-out flap. This enables you
easily to find the corresponding buttons on
the monitor.
English
Information for users in
the UK
(not applicable outside the UK)
Service for you
The legal responsibility for meeting any
in~guarantee service needs for your monitor
rests with the dealer from whom you bought
it. If your dealer has no service facilities, he
can arrange for any work to be carried out by
a competent third party organisation.
For further information, please refer to the
guarantee card supplied with the product.
Connection to the mains
Your new monitor is designed to operate
from an a.c. mains supply of 220-240 volts,
50 Hz. Stabilising circuits ensure satisfactory
performance within normal supply variations.
WARNING: THIS APPARATUS MUST BE
EARTHED.
Important: The wires in the mains lead for
the apparatus are coloured in accordance
with the following code:
Green and yellow: Earth
Blue: Neutral
Brown: Live
If the socket outlet available is not suitable
for the plug supplied, either a different lead
should be obtained or the plug should be cut
off and the appropriate plug fitted and wired
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as noted below. The moulded plug which
was cut off must be disposed of as it would
be a potential shock hazard if it were to be
plugged in with the cut off end of the mains
cord exposed. As the colours of the wires
may not correspond with the coloured
markings identifying the terminals in your
plug, proceed as follows:
The wire which is coloured green and yellow
must be connected to the terminal in the
plug which is marked by one of the
following: the letter E, the safety earth
symbol, the colour green, or the colour
green and yellow.
The wire which is coloured blue must be
connected to the terminal which is marked
with the letter N, or coloured black.
The wire which is coloured brown must be
connected to the terminal which is marked
with the letter L, or coloured red.
Installation
Positioning/Venti|ation
WARNING: WHEN POSITIONING THIS
EQUIPMENT ENSURE THAT THE MAINS
PLUG AND SOCKET ARE EASILY
ACCESSIBLE.
Do not place the monitor near a source of
heat. To prevent overheating, ensure that
the ventilation openings of the monitor are
not covered.
Movab|e Support
The movable support at the bottom of the
monitor provides three different viewing
angles (5, 10, 15 degrees) of the monitor to
the user.
First put the monitor leftside down. Pull up
the support then click it to either hook for
preferred viewing angle.
For Tilt and Swivel fitting instructions see
fold out sheet at rear of guide.
Connection to the Mains
You can connect the monitor to a mains
voltage of between 220 and 240 V. If the
mains voltage in your home is different from
this, please consult your dealer.
Connect one end of the mains lead to the
mains socket at the back of the monitor, and
the other end to the mains supply.
2

Connection to the
Computer
(on the rear)
NOTE: Please be sure to turn off the AC
power to your computer before connecting
or disconnecting any peripheral.
RGB connector: 9-pin D-shell
• To be connected to your computer with a
9-pin D-shell signal cable for analog RGB
signal input.
Adjustment
Switching on/off (
on the rear)
• Press button 0 LED lights up
• Press button again.
If necessary, you can make the following
adjustments to obtain an optimum picture
quality.
AUDIO-L connector
• To be connected for single sound signal
input.
• Adjust volume with knob .
AUDIO-R connector
• To be connected for the second sound
signal input for stereo sound reproduction.
• Used to produce a screen that imitates a
green monochrome monitor to improve the
legibility in text processing.
3

• Adjust contrast with knob 0 .
• Adjust brightness with knob.
• Used to adjust the image height on the
screen.
• Used to adjust the image horizontally from
left to right.
• Used to adjust the image width on the
screen.
• Used to center the image vertically from
top to bottom.
If the picture is not as desired, check
whether all controls are in the correct
positions.
4

Safety Precautions and
Maintenance
• The rear panel should only be removed
by a service technician.
• If necessary, clean with a slightly damp
cloth. Do not use alcohol or ammonia based
products.
• Keep the apparatus at a room
temperature of 5-35° C (41-95° Fahrenheit)
and a relative humidity of 15-90% (non-
condensing).
• Avoid sudden extremes in temperature,
exposure to direct sunlight, heat sources (
such as an electric fan heater) or rain.
• Make sure that the equipment is standing
on a suitable rigid horizontal flat surface,
allowing enough space for air to circulate
when it is in use.
• Ensure that wires and cables are routed
sensibly so that they cannot be snagged or
tripped over. Don't tug or twist any wires or
cables, or use them to hang or lift any of the
units.
• DON'T spill liquids on the machine. If
liquid does spill, turn the machine off
immediately and take it to your supplier for
assessment.
• DON'T drop the equipment or subject it to
excessive bumping and jarring.
• DON'T obstruct or poke objects through
the ventilation openings in the casing.
Technical Information
I) General:
Picture tube : 14", dark glass, 90°
deflection, dotted
pitch 0.39mm, 29.
1mm neck diameter.
Line frequency : 15625 Hz
Raster frequency : 50/60 Hz
Stereo audio output : 1 watt 5% distortion
Resolution : 640 pixels x 256 lines
Character : 2000 (80 x 25 lines)
Mains Voltage : 220 - 240 VAC
Power
consumption : 75 Watt typical
Dimensions : 326 x 352 x 376 mm
(H x W x D)
Weight : 11 kg
II) Input signal:
Analog RGB : 0.7 Vpp/75 Ohm
Stereo audio input : 177 mV/10 K Ohm
5

III) Pin assignment:
The functions of the 9-pin D-shell connector
are as the following:
Pin no. Assignment
1 Blue
2 Green
3 Red
4 Ground
5 Ground
6
7
8 Composite Sync.
9 –*
In support of our policy of continuous product
improvement, the above specifications are
subject to change without notice.
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3138 105 26662
Printed in Taiwan