Daewoo DUB-2850GB, DUB-2842GB instruction manual DVB Troubleshooting, Symptom Checks

Page 26

DVB TROUBLESHOOTING

Some Problems will only occur when viewing DVB channels.

Due to the different techniques involved in digital reception, DVB signal quality can be poor even if you appear to have a strong signal when viewing analogue programmes.

The DVB system requires a good quality signal to provide the best picture. When viewing analogue pictures, interference such as signal reflection from nearby buildings or mountains causes ‘ghosting’, but still provides a viewable picture. For the DVB system, Interference such as this can disrupt the flow of data causing the picture to appear to be made up of large blocks, or to freeze intermittently. If the picture disappears completely, this could mean that signal quality is very poor. If this happens often, you may need to improve your aerial system to provide a better signal. This TV contains a complex micro- processor which enables you to view enhanced digital services. Occasionally this device may need to be reset. This can be done by pressing the stand-by button on your remote control or the power switch on the front panel...

SYMPTOM

CHECKS

No DVB channels listed in the TV Guide after Auto Setup.

 

Electronic Programme Guide

 

 

Wed 10/11 10:00

 

 

Channels

Current Event

 

Next Event

 

Check that DVB transmissions are available from the transmitter you are

 

 

 

 

 

 

currently using. If not, try directing the aerial at another local transmitter.

 

 

 

 

 

 

Check analogue transmissions. If picture quality is poor, you will need to

 

 

 

 

 

 

improve or change your aerial system to receive DVB channels. Consult a

 

 

 

 

 

 

local installer.

 

 

 

 

 

 

 

 

◄ ► ▲ ▼ Navigate

 

Schedule

Select Watch

i Event

 

 

 

 

 

 

 

 

Blocky interference.

Picture freezes intermittently.

Blocky interference indicates that the signal quality is poor. You should consider improving your aerial system.

To check the quality of your signal, press INFO key and check signal level on the banner.

1

BBC ONE

I / II

TV

08:50

 

 

 

 

 

 

 

 

 

 

 

 

Signal:

 

 

 

 

 

 

NOW: Breakfast

 

 

06:00 - 09:45

 

 

 

Next: Beat the Burglar

 

 

09:15 - 10:00

 

 

 

 

 

 

 

 

 

 

 

 

No picture in digital mode but ok in analogue mode.

no picture in digital mode

picture in analogue mode

If no picture only in digital mode, please do AUTO SEARCH again.

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Image 26 Contents
Digital Television Additional Information for TV’S Sold in Great Britain Risk of Electric Shock Do not Open Disposal of Used Electrical & Electronic EquipmentSupplied Accessories Contents Remote Control & TV Connections Important Safeguards InstallationConnecting External Equipment Switching on TV SET Daily USEProgram Selection Sound ControlTelevision Format Picture ControlSleep Function Picture Menu Menus DescriptionMain Menu Sound MenuProgram List Edition Install MenuAutomatic Tuning System Channel skipping Manual Channel TuningPerform fine tuning TV system modificationTV clock setting Features MenuWhen switched to on Wake up functionSelection ENTERING/LEAVING Teletext ModeTeletext Useful Teletext Functions Subpage button A25Watching TV While page Searching Volume and brightness control in teletext modeTeletext Format Picture & Sound Control Watching TV with Teletext SubtitlesSignal level DVB MenuChannel List FavouritesFavourites Guides ITV Timers BBC TWO Channel FiveSettings Configuration InstallationCommon Interface General Troubleshooting Symptoms Picture Sound ChecksDVB Troubleshooting Symptom ChecksSpecifications DUB-2850GB, DUB-2842GB