E
NGLISH
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Care
and
m
aintenance
54-E
NGLISH
Picture from
computer does
not appear.
Problem
Possible cause
B
The cable may be too long.
B
The external video output for the laptop computer
may not be set correctly.
(You may be able to change the external output
settings by pressing the [Fn]+[F3] or [Fn]+[F10]
keys simultaneously. The actual method varies
depending on the type of computer, so refer to the
documentation provided with your computer for
further details.)
Page
–
–
Before carrying out cleaning and maintenance, be
sure to disconnect the mains plug from the mains
socket.
Wipe the cabinet with a soft, dry cloth.
If the cabinet is particularly dirty, soak the cloth in water with a small amount
of neutral detergent in it, squeeze the cloth very well, and then wipe the
cabinet. After cleaning, wipe the cabinet dry with a dry cloth. If using a
chemically-treated cloth, read the instructions supplied with the cloth before
use.
Do not wipe the lens with a cloth that is dusty or which produces lint.
If any dust or lint gets onto the lens, such dust or lint will be magnified and
projected onto the screen. Use a blower to clean any dust and lint from the
lens surface, or use a soft cloth to wipe off any dust or lint.
Cleaning and maintenance
Before calling for service
Before calling for service, check the following points.
Problem
Possible cause
Page
Power does not
turn on.
No picture
appears.
The picture is
fuzzy.
The colour is
pale or grayish.
The remote
control unit
does not
operate.
The picture does
not display
correctly.
B
The mains lead may not be connected.
B
The MAIN POWER switch is turned off.
B
The main power supply is not being supplied to the
mains socket.
B
TEMP indicator is illuminated or flashing.
B
LAMP indicator is illuminated or flashing.
B
The lamp unit cover has not been securely
installed.
B
The video signal input source may not be
connected properly.
B
The input selection setting may not be correct.
B
The “BRIGHT” adjustment setting may be at the
minimum possible setting.
B
The “SHUTTER” function may be in use.
B
The lens cover may still be attached to the lens.
B
The lens focus may not have been set correctly.
B
The projector may not be at the correct distance
from the screen.
B
The lens may be dirty.
B
The projector may be tilted too much.
B
“COLOUR” or “TINT” adjustment may be incorrect.
B
The input source which is connected to the
projector may not be adjusted correctly.
B
The batteries may be weak.
B
The batteries may not be inserted correctly.
B
The remote control signal receptor on the projector
may be obstructed.
B
The remote control unit may be out of the
operation range.
B
The signal format (“TV-SYSTEM”) may not be set
correctly.
B
There may be a problem with the video tape or
other signal source.
B
A signal which is not compatible with the projector
may be being input.
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48
49
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25
40
45
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25
17
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17
40,
41
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23
23
23
42
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58
