Sinclair Research VISION-QL Owner's Manual
SINCLAIR VISION-QL OWNER'S GUIDE
R.G.B. COLOUR MONITOR DISPLAY
Recommended by Sinclair Research Ltd. For use with the
Sinclair QL computer. Manufactured for and sold,
guaranteed and serviced by MBS Data Efficiency Ltd.
BEAB approval applied for.
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INTRODUCTION
Congratulations on your purchase of the VISION QL MONITOR Full Colour Computer
Monitor. We know you will be pleased with its performance.
Please take the time to carefull read the following instructions, operating
procedures and information. Your new monitor is a well crafted, precision
instrument that will provide long use, if properly interfaced to the computer
and regularly maintained.
The monitor features the latest type of 12 inch (30.5cm) 90degree deflection
colour tubes, for a bright and clear display. The video circuitry is designed
with Linear Amplifiers to allow virtually unlimited colour rendition from one
end of the spectrum to the other.
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CAUTION! DISCONNECT BOTH THE MONITOR AND THE COMPUTER FROM THE AC POWER SOURCE
WHILE INTERCONNECTING THE TWO UNITS.
INPUT SIGNAL
Signal types : Separate R,G,B, H/V Composite sync.
Signal levels : All TTL
Signal Polarity : VIDEO....................Positive
H/V Composite Sync.......Negative
OPERATION
1. Connect the 8-way DIN connector cable of the monitor to the mating computer
connector
2. Plug both the monitor and the computer into the AC power source
3. Turn on the monitor and computer power switches.
4. After a brief warmup period, adjust the front panel BRIGHTNESS control for
comfortable viewing. Lower levels will increase tube life and lessen screen
burn.
5. Video stability, focus, width and height have been preset at the factory and
should not require further attention. However, if you cannot obtain a
satisfactory display, return your monitor to the SINCLAIR dealer for
readjustment.
WARNING! After extended periods of operation at high temperature, turning off
the computer will activate an x-ray protection circuit in the monitor, cutting
off its raster. To restore the raster for maintenance or adjustment of the
monitor, turn off the monitor AC power switch and wait for a while before
turning it on again.
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