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9 CLEANING AND MAINTENANCE
The screen and the DigiOptic™ Image Processor do not require in- ternal adjustments and do not contain any
For any service requirements seek qualified technical assistance from your nearest Dealer.
To clean the outer cover of the screen use a soft cloth and moisten slightly if necessary with water and a small amount of neutral soap. Do not rub hard on the printed captions on the rear panel of the DigiOptic™ Image Processor.
The screen may be cleaned with a very soft
10 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 units’ power sockets.
•Check the condition of the fuse located on the power socket on the rear of the screen.
•Replace the fuse located on the screen power socket with an equivalent and identically rated fuse (T3,15A H).
•If the fuse blows repeatedly, 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 HTL40 LINK technical specifications and, in particular, with the selected DigiOptic™ Image Processor input.
•Check the condition of the cables used to connect the DigiOpti- cal™ Image Processor to the various sources.
•Check the state of the connection between the DigiOptical™ Image Processor and the screen.
•Check the state of the connection by interpreting the code dis- played by the system LEDs in accordance with Table 2.
•Make sure the cooling air vents on the units are not blocked and that the ambient temperature is below 35°C.
Image is disturbed, unstable or noisy
•Make sure the video or graphic signals supplied by the source are compatible with the system’s technical specifications and, in particular, with those of the selected input.
•Check the condition of the cables used to connect the DigiOpti-
cal™ Image Processor to the various sources.
•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 VCR mode is active in the PICTURE menu.
•Adjust the Sharpness parameter in the PICTURE menu to optimise the displayed image.
Incomplete image along borders (vertical and horizon- tal)
•Make sure the video or graphic signals supplied by the source are compatible with the system’s technical specifications and, in particular, with those of the selected input.
•Recall the automatic image adjustment function by pressing the key “A” on the remote control or the AUTO 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 menu.
Image too dark, too pale or unnaturally coloured
•Make sure the video or graphic signals supplied by the source are compatible with the system’s technical specifications and, in particular, with those of the selected input.
•Adjust the CONTRAST, BRIGHTNESS, COLOUR and TINT parameters in
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