Question about RCA R52WM24 52" HDTV Projection Television
I have a 55 in. proj. screen. the screen has dark areas on top and bottom. can i fix this myself?
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: Distorted Screen for RCA HD56w66
convergence is the problem. first question do you have convergence in the customer setup menu. if you do not it could be a special small fuse if you do have "convergence" in the setup menu then you most likely have a convergence power board issue. and generally they are replaced. in our shop such board replacement average 124 labor and about 100 for part. if the fuse bout 15 for part and 80 for labor. there are solder connection that cause the blown fuse
Posted on Feb 21, 2008
I had the same problem on my 50" DLP. Today I took the light projection mechanism apart to get to the
mirror tunnel (a piece about 1.5" long located between the projection bulb
housing and lens housing) and, for now at least, the shadow problem has
been corrected on my TV.
It would be difficult to describe in detail without photos of how to remove the mirror tunnel. Briefly, once the lower rear cover is removed, it involves completely removing the entire assembly of the projection bulb and lens, along with disconnecting 3 or 4 cable connections. This assembly is held in place with 3 large screws around the projection lens housing in the lower center of the TV. After it's completely removed from the TV, removing smaller screws will break down the component parts. Once you locate the color wheel (about 2" in dia.) between the bulb and lens, the mirror tunnel is directly adjacent to it.
Handle it all with care, and I strongly suggest that you immediately cover the protruding projection lens will a lens cleaner cloth (held by rubber band) so it doesn't get scratched or smudged while you're working on the assembly. This will all make more sense after you get into it. Just remember where everything goes, both cables and screws!
My four mirrors had indeed shifted into a flatter parallelogram than it should be. On my set the metal tunnel casing is molded so that it doesn't allow for the mirrors to be in the shape of a rectangle; it requires a parallelogram shape. The mis-shapened tunnel caused a small portion of the metal mirror housing (on the lamp end) to protrude into the interior of the tunnel, hence the shadow on the screen.
To re-shape the mirrors I gently inserted a nylon cable tie--with a sharpened leading edge--into the tiny gap behind the mirror that had shifted. In doing so the mirrors shifted back to the proper positions and stayed there when I removed the cable tie. (Be very gentle with the mirrors and do not insert anything into the tunnel!)
It's not clear why this (now restored and larger) gap behind that one mirror even exists, but to ensure the the mirrors don't shift again, I inserted and left in a length of cable tie (which is near perfect in thickness and width) in the gap. Time will tell whether heat will deform it.
Perhaps a similar-size strip of metal would be better but I didn't have one. And I would not use any kind of glue or adhesive on these mirrors (as others have suggested); with their small size and the need to keep them crystal clear there is just too much potential to royally mess them up.
After putting it all back together and testing, the shadow is gone. Hope this helps and works for others!
Posted on May 03, 2010
Tips for a great answer:
Apr 12, 2010 | Philips 55PW9363 55" Rear Projection...
Jan 09, 2010 | Mitsubishi WS-55809 55" Rear Projection...
Dec 04, 2009 | Sony Grand WEGA KDF-55XS955 55" Rear...
Oct 07, 2008 | Hitachi 61SWX10B 61" Rear Projection...
May 02, 2008 | Protron PLTV-37 37 in. LCD Television
28 people viewed this question
Usually answered in minutes!