Question about Televison & Video
(BE MINDFUL OF THE PROPER ELECTRICAL SAFETY CONCERNS IN FOLLOWING THIS POST. REFER TO http://www.electricalsafety.org/.)
You could try to reseat (disconnect & reconnect) cable that connects the system board to the LCD panel because most likely, it is probably not getting a good signal. Otherwise the logic circuit is probably overpowered & getting more than 12 volts; meaning having to search for the culprit-which could be the board.
Posted on Nov 29, 2014
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Posted on Jan 02, 2017
You shouldn't need anything plugged into the accessory jacks to get local sound from your set.
Go through the main setup menu and check audio settings; they may be set to turn off the internal speakers to send the sound to a home theatre that you apparently don't have.
Most sets have that as a selection and supply L-R audio for an external system and mute the internal speakers.
FYI: The three connectors you mention are coded as follows:
Red - right channel audio White - left channel audio Yellow - composite video (contains synchronization signals and video)
These may be input connectors (for external VCR/DVD decks) so check your owner's guide to verify.
Posted on Nov 23, 2008
Check this link to find the LJ41-02759A board for your TV. These boards fails quite often and the TV will power ON but with the same symptoms as yours.
Posted on Jul 15, 2009
SOURCE: The picture on my Vizio 42
This is the fix for the Main board repair :
Locate IC 32 small 8 pin surface mount near top of Main Board and remove. Short pin 2 to pin 5. (pin 5 through 8 are together and pin 2 and 4 are together)
You will need a good TV Tech to do this for you.
Posted on Aug 04, 2009
Now,tv on,u have a flash of picture few sec.dies have sound left only?Yes,than those 2 long boards call the LCD inverter boards is dead.These 2 long LCD inverter boards provide a backlight to the LCD screen to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 2 refurbishes long LCD inverter boards for the replacement.
Posted on Sep 15, 2010
You will get a white screen when you unplug the t-con from the main board. Doing so removes power to the LCD panel. Verify that all of your voltages from the power supply are correct. If they are, I'd look at the t-con board. It sounds like there is a problem with the t-con that is pulling down the main board.
Posted on May 11, 2012
Tips for a great answer:
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