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If it has a white screen rather than black, has it switched over to analogue by accident. It may be analogue/digital. If it is there should be a selector option to put it back to digital output.
It if has not got both analogue and digital output go into the munu for settings and reset it to factory default,if that fault is due to an internal problem that may clear it.Also, if these actions do not have the desired result chack that the aerial is properly connected
This comment applies to Daewoo DLT32C3FTV. The system had in list only the model DLT-32C3FTB
. Parts for the smaller model DLT-32C3FTB are available from the same sellers listed below. Troubleshooting is the same.
The stand by light flashing means that a fault had been detected, and the TV protection circuit had started.
Whenthis happen, the protection circuit will shut down all PSU highervoltages, keeping the low +5V to supply the flashing led on, and warnabout the fault.
The TV does not respond to control when in protect mode.
All you can do is checking all connections, and leaving the TV disconnected for a while, to drain charge held on PSU capacitors. A short in a cable or connector will also cause the unit going on protection.
Inthat case the best thing to do is contacting manufacturer at the numberlisted on the owners manual, and getting a quote on repair.
Onan LCD like this there are only few parts, a main controller, aninverter, a PSU board, an audio board, an LCD controller board, abutton and IR assembly, cables and the display.
The parts must be accessed and tested by a technician. If the unit is less than one year cold, the repair will be covered bymanufacturer. In any case, if the TV does not wake up from protectmode, then it is faulty. Always better contacting Daewoo at the numberlisted on the owners manual.
If the cat sat on the remote, it is likely it changed the tv to AV1. Just find the AV button on the remote and press it again and again. It should cycle through the different AV channels your TV has - my TV has 6 AVs, 2 HDMI and a PC channel so if yours is anything like mine, you may need to press several time to get back to your Sky/freesat/virgin box. Alternatively, some HDMI connected kit just needs turning off and on. That then sends a signal to the TV which changes the TV automatically. For example, my Blu-ray player does that. Experience - I have a cat that sits on my remote and does the same thing!!
You mention you have tried a digi box and it made no difference. If on the same aerial point, it will be the aerial. Check the cable as there may be a "ghost" on the digital frequency causing errors and picture freezing.
Your TV has a dual tuner - one for analogue and one for digital although they are contained on the same tuner board. It's possible that the digital tuner has failed, in which case the tuner board will most likely need to be replaced, but often this problem can be resolved with a "hard" reset. Turn the TV off and unplug it. Remove all the cables from the back, leave it for at least 5 minutes and then re-connect only the cable from the tuner source. i.e aerial/antenna. Make sure you are in Digital TV mode (DTV), then run the channel scan again.
If it works turn the TV off, re-connect all of your other devices and you should be able to resume using the TV as normal.
If this doesn't work, you may need to have the digital tuner replaced. The analogue and digital channel feeds are from the same source. As the analogue channels are working there is no obvious fault with the feed or cables.
Please try this first and then post back for further assistance if needed.
The black screen problem of your TV can be attributed to a backlight driver failure, busted backlight, or LCD driver failure.
The flickering indicates a failing backlight driver or a failing backlight. The screen should be totally black, without any glow, when either of them is not working. To verify, grab a torch and shine it on the screen. You will be able to see a faint display telling you that the backlight is busted or the backlight driver is faulty. If not, the LCD driver or the LCD panel itself is faulty, although it has a low probability due to the symptoms of the problem. The only way to fix the problem is replacement of the faulty part. You may need the service of a qualified technician to determine exactly which one is the root of the problem that needs replacement.