Sim2 Multimedia GRAND CINEMA HT HT5000 - Manual (Page 26)

6
ht5000
10 TROUBLEShOOTiNg gUiDE
No power (LEDs always Off)
• Check that the unit power switch are set to I.
• Check that the power cable is correctly connected to the
unit power sockets.
• Check the condition of the fuse located on the power
socket on the rear of the projector.
• Replace the fuse located on the projector’s power socket with an
identical type (T 5A H).
• If the fuse blows repeatedly, seek technical assistance from
your nearest Dealer.
Lamp fails to switch on
• If this happens immediately after the last time the unit was
switched off, allow a few minutes between switching off and
switching on again. This will allow the lamp to cool down
sufficiently.
• If the lamp fails to illuminate - even though the unit has
had time to cool down - seek technical assistance from
your nearest Dealer.
• Check the state of the connection by interpreting the
code displayed by the system LEDs in accordance with
Fig. 11.
No image
• Make sure the selected input is connected to a video
or graphic signal and that that source is functioning cor-
rectly.
• Make sure the video or graphic signals supplied by the
source are compatible with the HT5000 system’s technical
specifications and, in particular, with those of the selected
input.
• Check the condition of the cables used to connect the
projector to its input sources.
• Check the state of the connection by interpreting the code
displayed by the system LEDs.
• Make sure the cooling air vents on the units are not blocked
and that the ambient temperature is below 5°C.
image is disturbed, unstable or noisy
• Check compatibility of the video or graphic signals with
the technical specifications of the system, and specifically,
with the specifications of the selected input.
• Check all cables.
• 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 videorecor-
der, ensure that the videotape is in good condition
• Adjust the Sharpness parameter in the PICTURE menu to
optimise the projected image.
9 CLEANiNg AND MAiNTENANCE
The projector does not require internal adjustment. There are
no user serviceable parts inside the projector.
To replace the bulb or any other repairs, contact your local
service centre.
To clean the outer cover of the projector use a soft cloth and
moisten slightly if necessary with water and a small amount of
neutral soap. Do not rub the rear panel markings.
The lens may be cleaned with a very soft, non-abrasive small
brush, in order to remove dust particles. Alternatively, use a soft
dry cleaning cloth (of the type used for camera lens cleaning)
to remove fingerprints and grease marks.
SiM2 RECOMMENDS ThAT ThE POwDER fiLTER iS CLEANED EACh
TiME ThE LAMP iN ChANgED.