Installation manual

18
7 TROUBLESHOOTING GUIDE
No power (LEDs always OFF)
• Check that the units’ power switches are set to ‘I’.
• Check that the power cables are correctly connected to the unit
power sockets.
• Check the condition of the fuse located on the power socket on the
rear of the unit.
• Replace the fuse located on the unit power socket with an equivalent
and identically rated fuse (T3.15A H).
Lamp fails to switch on
• Allow a few minute pause between switching off and switching
on again. This will allow the lamp to cool down sufficiently.
• If the lamp doesn’t come on - even though the projector has
had sufficient time to cool down - seek technical assistance from
your nearest dealer.
No picture
• Make sure the selected input is connected to a video or graphic
signal and that the relevant source is functioning correctly.
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• Check the condition of the cables used to connect the various
sources to the DOMINO 55M.
Image is disturbed, unstable or noisy
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• If the problem occurs on a terrestrial broadcast source signal,
check that the receiver has been correctly tuned in and that the
aerial system is in good working order.
• If the problem occurs in a video signal from a videorecorder,
ensure that the videotape is an original “first generation” copy
and that VCR1 or VCR2 modes are active in the PICTURE menu.
• Adjust the SHARPNESS parameter in the PICTURE menu to optimise
the displayed image
Incomplete image along borders (vertical and horizontal)
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• Recall the automatic image adjustment function by pressing
the AUTO key on the remote control or the ◀ key on the screen
keypad.
• Adjust the horizontal or vertical position of the displayed image
using the IMAGE/POSITION menu.
• Adjust the width and height of the image, selecting ASPECT in the
IMAGE/ASPECT menu.
• Adjust the overscan value applied to the image on the IMAGE/
OVERSCAN
parameter.
Image too dark, too pale or unnaturally coloured
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• Adjust the CONTRAST, BRIGHTNESS, COLOUR and TINT parameters in
the PICTURE menu.
• If necessary, adjust COLOR TEMPERATURE and GAMMA CORRECTION
(IMAGE MENU
).
Graphic image with poor quality vertical detail
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• Recall the automatic image adjustment function by pressing
the AUTO key on the remote control or the ◀ key on the screen
keypad.
• Adjust FREQUENCY and PHASE parameters in the IMAGE menu to
optimise the vertical detail of the displayed image.
Video Image showing colour misalignment on vertical de-
tails
• Make sure the video or graphic signals supplied by the source
are compatible with the DOMINO 55M technical specifications
and, in particular, with those of the selected input.
• Adjust Y/C DELAY settings in the IMAGE menu to reduce colour
misalignment.
Remote control not working
• Check remote control battery power and correct polarity..
• Ensure the area between the infrared sensor (on the front pa-
nel of the DOMINO 55M) and the remote control is free from
obstructions.
• Make sure the infrared sensor on the front panel of the DOMINO
55M is not exposed to intense light sources.