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Location of the fuses in RCA L42WD22 ? - Televison & Video

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The main AC fuse for the power supply is at the bottom left coner of the board (F) T6.3A 250V.
See picture here:

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:

Failed TV and Monitors:

Learn about bad caps:

Capacitors kit: he can make you a set of caps.

Please post back what you find.

Posted on Nov 08, 2010


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My RCA 42" HD flat

sounds like it needs new caps on the power supply board..............easy fix if you can use a soldering iron........

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Hi Ruth, Im having the exact same problem. Ive read online that it is a fuse or something, not sure, but its the weekend, and i have no tv. Tried calling RCA cant get anything out of them. If you find out what it is please let me know. I know how frustrating it is...

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Sounds like the famous failed fuse issue. The manufacturer installed an undersized fuse on the main board, about 2 inches from the tuner pack it has a "F" on it. This must be replaced with a larger, 750ma, 63 volt chip fuse. Unless you're adept at small soldering, get a tech to replace it and the set should be fine.

Apr 13, 2009 | RCA L42WD22 42 in. LCD Television

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Does any one have any pics of how to replace the fuse on l42wd22

Here is some info I found. VERIFY the part # etc for you tv.
For SMT surface mount parts, soldering on top may be easier if you do not have the fancier soldering equipment.

Here is the RCA part # for the replacement 275819, it's a 750ma 63V fuse. No need to remove the old one just solder on top of the existing one.Remove rear and bottom screw holding the tv plastics together. Then open up the digital board cover(the one with all the connections going to it). In the upper left hand corner near the large flat ribbon connector ie40 they will see a surface mount cap. I think its 100UFD at 16v. Just to the right of it is a small surface mounted fuse, has an F stamped on it. This is the fuse that opens up.

The Fuse sells for $3.90 or so.

The 275819 is a service bulletin replacement #TV08-001 so you shouldn't have any problems after replacement with this one.

Open fuse 1c33, located on main pcb appx 1/2 inch from top edge and 1/2 inch from left edge. may not be marked as a fuse. see rca bulletin tv08-001 for pix.

Jan 14, 2009 | RCA L42WD22 42 in. LCD Television

1 Answer

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your problem is the cuircit called the digital board.. unfortunealy rca has mad the board unavalible.. there is a very small micro fuse that they offer to fix this problem.. to repair you have to remove the cover and the put this very tiny fuse on it. not really recommended unless you can solder with a magnifer and twezzers..

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I own the L46WD22 for a few months and lost the sound and analog inputs, only HDMI worked, apparently this is a design flaw and they should have recalled all units. I didn't really needed the speakers because I have a sony receiver where I playback the sounds, but I decided to repair it myself after I neglected to take it out to the repair center and use the warranty. If you have a little soldering experience you can fix it, or you can buy the fuse and take it to any repair center, the problem is a surface mounted fuse that is located in the PCBA where all the signal inputs are, the component location is 1C33 the fuse has the letter F printed on it, you can't miss it, it's about 2 inches behind the tuner where you plug the coaxial cable. the fuse I bought it's marked with a G letter, it's 750mA, I just soldered it on top of the one it has, now I can hear the speaker and use the analog inputs (and now I'm the hero and have a very happy wife). the whole fix took me about two hours

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