20 Most Recent Sylvania LC420SS8 LCD TV - Page 2 Questions & Answers

Check the tv menu to ensure that speakers are on. And disconnect any cables that went to the surround sound.

Check and replace its main power supply regulator board as card basis.

had a dell that does the same, tried many fixes. finally just replaced the monitor. easiest and most cost effective fix, in my opinion

024,038,082,099,000 are the codes to check. If you wish to get more, check these links. http://remotesearch.blogspot.com/ http://electrohelponline.blogspot.com/ Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

Seems like capacitor problem, chack them and if thay have exploded replace them.

if the audio works then the inverter board would be suspect. If audio doesnt work either then the main board would be suspect. You can get replacement boards from www.tvcircuitboards.com

Look first in menu to see if speakers somehow are switched to off. Look to see if sound with a DVD etc connected to one of the rear sets of inputs----also depending on hookup a cable or sat box can cause this also.

Have you checked your remote to see if its working? If you have a digital camera or camera phone, point the remote at the lense and see if it shows up on camera screen. If it is working then the IR sensor on the tv could be bad.

What type of TV is it and how old?

the problem is the s/w on the tv if you have some solder experience this is easy to fix just repalce the s/w

Reset your TV. Unplug it from AC mains, and pulg it back after 5 minutes of so. This must make it a hard reset. If this do not help you, contact the service center.

Check its main power regualtor board. Replace it as card basis.