Check the speakers first. If found OK, check and replace the damaged components at its audio output stage circuit. Contact any service technician. If you wish to get more details visit the site linked here. Circuit diagrams of many popular brand sets are given. http://electronicshelponline.blogspot.com/ http://schematicscom.blogspot.com/
SOURCE: Screen won't display
1.turn off tv
unplug from wall
wait approx 10 minutes
plug back in and turn it on and follow on-screen intructions
If solution 1 does not help
FROM THE REMOTE
either in settings or menu
you will find a setting to reset tv to factory default.
SOURCE: What's the remote code for a cello DCS1420 tv dvd combo?
0269,0266.
Try these codes. If you wish to get more details; check the sites linked here. It has set-up code list & set-up procedure to many popular brand remote controls. Common codes to check devices with different brand TVs are given, in the order of the device's brand name list in alphabetical order. Pull up older posts. Surf the site with patience.
http://remotesearch.blogspot.com/
http://electrohelponline.blogspot.com/
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