We just bought the RCA L46WD22 television from Walmart. It worked for 1 week, and then we no longer had any black in our picture. Anything that would be black was a greyish white. Almost looked like a negative picture. I'm told that it is the digital board. Since searching the internet for some help, I've noticed lots of people with similar problems. Any suggestions?
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Check and replace its back-light inverter board. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/
The back lights inverter is working because you can see the "Unusable Signal' on the screen, if the inverter is dead, yoo will see nothing on the screen at all.
If the T-CON (LCD controller) is dead, you will see just gray glowing screen with no pictures or text.
You may have problem with video processor in the main logic board (tuner, audio, source selector).
Parts for your TV: http://www.shopjimmy.com/catalogsearch/result/index/?q=RCA+L46WD22+&stock=all&limit=100
This is going to be difficult repair since you do have a way to try out the replacement board to be sure that is the problem. RCA service person has that advantage of parts in stock to try out.
I estimate the board from Jimmy to be about $150, from RCA will be twice as much, plus labor.
This model has issues with a small micro fuse that will blow for no particular reason. Poor design most likely. This fuse is a solder on type and is very tricky. Have a shop check it for you before you trash it. Should not be an expensive repair. Thanks for using fixya.
RCA are beautiful televisons, what is happening is that when the faulty fan that cools down the processor stops working, your processor over heats and a temperature gage inside reconizes this and shuts down the television. unlike some other models that i choose to remain nameless
*cough sony cough cough* where you need to replace the t.v,
RCA has a safty feature that allows the t.v to shut down with out it doing any harm. Ok folks, this is the easyest answer that i am going to ever give anyone.
All you need to do is Replace the FAN! that fan that cools down the processor to allow the fast movements to give the vibrant pictures in stunning accurate pixle compounds. it will cost about $50 for the fan and $200 for the guy/girl to install it.
So there you are a complex problem with a simple answer. you are one lucky person, you choose the right television the only factory defect was the fan. your t.v should last 15years without any serious problems.
I hope this has helped you folks. i am called the flat pannel Guru in my buisness.
lso had the exact problem about 2 weeks ago on my L46WD22.Took it to the authorized repair shop and they told me they had others on their shelf for over a month. Since the board has been on back order for a while, my repair shop called and actually got to talk to an engineer at RCA.The problem seems to be a surface mount fuse that RCA said they also could not get.My repair center said that he found a fuse to fit the board, and though it was a higher rated fuse, installed it.TV works fine and it is back in my house, but the repair center is not getting paid for the work they did not fix it!!!