Question about RCA HD65W140 65" Rear Projection Television

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L46wd22 rca 46" flat screen

Unusable signal...with audio, only hdtv pics come in, few channels come in black and white only...bought this tv as a display model on clearance- Walmart. Can't get the thing to show a picture, just audio. Need help. Have tried all inputs. Thanks.

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  • mariluB Jun 12, 2008

    THANK YOU SO MUCH! BUT WE RETURNED THE T.V. AND UPGRADED TO A 50" SANYO FOR JUST A LITTLE MORE AND ITS NEW IN THE BOX!!! AFTER READING ALL THE REVIEWS ON THE RCA WE DECIDED TO RETURN IT. THANKS.

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Ok....i know what is wrong with your set.. it is a small (very small micro fuse. rca has issued bulliten to service centers on the problem.. getting the fuse and describing where it is then soldering might be the difficult problem here.. but let me give it a try. it is located on the main signal board in a shelded covered board called the main signal board. The fuse, 1C33,is located approximately 2 inches behing the tuner The surface mounted part has various markings on
the original part from “105” to “F”
and is located below the board marking “7C32'
Replacement fuse #275819 can be placed directly over the top and soldered to the ends of the existing fuse
to lessen the chances of damaging the board traces.
all that being said.. this is some trick soldering.. and unless your a tech i would not recomend such a repair.. i cant speak for all shops but such a repair is not that difficult for most techs and cost about 125 to 200. So good luck and let me know how it go's or if i can give any more detailed info

Posted on Jun 10, 2008

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WE JUST RETURNED THE T.V. WE READ THE REVIEWS ON THAT RCA MODEL AND THERE WERE TOO MANY BAD ONES. WE UPGRADED TO A 50" SANYO THAT IS NEW IN THE BOX AND ONLY COST US A LITTLE MORE.

Posted on Jun 12, 2008

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RCA L46WD22 LCD tv (3 year-old unit)...No picture, tried unplugging for a few hours to ''re-set'' the computer...nothing, tried to view a DVD, nothing, just a black screen with the ''unusable signal''...


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.

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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http://en.wikipedia.org/wiki/Capacitor_plague

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