106
RQT9249
Troubleshooting guide
Digital broadcast
TV Guide
Page
The TV Guide System does not
receive any data.
≥
Check whether the clock is properly set.
≥
If signal quality is bad (ghost images or limited reception), the TV Guide system may not be
able to receive any data.
88
—
“No Data” is displayed for some
or all stations.
≥
Some stations are not supported by the TV Guide system.
≥
Programme the Timer recording manually.
—
32
The TV Guide information is not
displayed properly.
≥
There was a programme change.
Check the current programme, e.g. on the Web site for the TV Guide system provider or
station provider.
—
The TV Guide data transfer was
interrupted.
≥
The TV Guide system shows the data that was received up to the interruption.
≥
The programme information may be incomplete.
—
—
The TV Guide data is not
updated.
≥
Make sure that the time is set correctly.
88
Digital broadcasts cannot be
received.
≥
Digital broadcast may not have started in your region yet.
≥
The aerial may not be pointing in the direction of the TV station, or the direction of the aerial
may have changed due to strong winds or vibration. If problem persists consult your local TV
aerial installer.
—
—
After Auto-Setup only some or
no DVB channels are found.
≥
Check to ensure your area is covered by DVB transmissions.
≥
Check that the aerial and antenna cable are designed for D
V
B.
However, use the included RF coaxial cable shown in STEP 1, Connections “A” or “B”.
If you live within 5-10 km of D
V
B transmission towers, a combined
V
HF/UHF aerial should be
adequate. Outside this area, separate
V
HF and UHF aerials provide superior reception
performance.
—
16
Picture regularly breaks up on
some channels. “No signal”
message is displayed.
≥
Check “DVB Signal Condition”. If “Signal Quality” or “Signal Strength” are displayed in red or
constantly changing, check aerial. If problem persists consult your local TV aerial installer.
≥
Check that the aerial and antenna cable are designed for D
V
B.
Use the included RF coaxial cable shown in STEP 1, Connections “A” or “B”.
≥
Interference (known as impulse noise) from household appliances such as light switches,
fridges etc. may cause picture break up and/or audio distortion. Use a high quality quad
shielded coaxial cable fly lead between this unit and antenna wall socket to minimise impulse
noise pickup. If problem persists consult your local TV aerial installer.
≥
Check aerial connection.
≥
Adjust the aerial reception with “DVB Manual Tuning” in the Setup menu.
82
16
—
—
82
Picture very infrequently breaks
up on some or all channels.
≥
Electrical atmospheric interference caused by local or distant lighting storms or heavy rain
with wind in “leafy” locations may cause pictures to break up and audio to mute or distort
momentarily.
≥
Impulse noise interference from an infrequently used electrical appliance, or a passing
vehicle or lawn mower with a “noisy” ignition system.
—
—
DMRXW400EF-RQT9249-L_eng.book 106 ページ ２００８年９月１９日 金曜日 午後６時１４分
