Question about RCA R52WM24 52" HDTV Projection Television
We had the convergence problem where we had the 3 lines in a bowl shape on the screen and 3-d picture. We replaced the fusible link but now our TV will not stay on. We turn the power on and it shuts right back off. We don't know if the fusible link fixed our first problem, or caused this problem, because we can't get the power to stay on long enough to check it. Any suggestions?
I had convergence problem and replace the fusible link with 125v 400ma. It was working for a couple days until then the TV was shutting off and turning on. I set a little fan back there and it stop the problem. I was able to talk to a RCA authorized tech. He said replace the fl 231 fusible link and DL 231 its a diode that is located to the right of the 3 fusible links between the top link and fl 231 link that you are replacing. He mentioned that the diode when it goes bad it take out the fusible link fl 231, also resolder the flyback transformer. Apparently there was some kind of flaw on the type of solder they used on these boards with a lead free solder.
Posted on Jun 21, 2008
Sounds like you have more problems than just the fuse.. did you resolder the connection when you replaced the fuse. this is what causes that to happen.. fuses blown for a reason. ussally something is shorted. that particular fuse blows because it is a very small fuse and doesent take spikes in power to well. so when a intermittant connection begins to cause ossillations it shakes that poor fuse. it however sounds like you have more than that. does the led on the front flash when it shuts down.
Posted on Apr 06, 2008
SOURCE: double vision and no convergence
I have found that fusible link FL231 is the main cause of this problem. It's located by the high voltage transformer and looks like a square coil.
Check it with an ohm meter and if it checks bad, then, replace it and you should not have to realign the convergence.
Any questions or comments, respond to this post and I will reply.
Posted on Jan 01, 2008
the rca itc222 chasis uses no stk the convergence is controled with transistors... the convergence amp board is located above the main signal board(green board)... it can be identified as the one with several heat sink fins on it. FL231 is related to convergence.. there has been a problem with this fuse when it blows the processor doesnt know it is a projection set so it turns it into a regular tube tv. Here at the shop we have found number one reason this fuse blows is poor solder connection on the flyback. So replace the fuse and reflow the solder connection on the flyback and around that area also the horizontal transistor and then see if that doesnt fix the problem.. if you have an more trouble ..... firstname.lastname@example.org
Posted on Feb 29, 2008
SOURCE: convergence problem
You can download the manual here. Insrtuctions for auomatic convergence are described. I copied the instructions below.
Your HD Monitor’s picture tubes might have been disturbed during delivery or
after you moved the HD Monitor, causing the color in your HD Monitor to be
out of alignment. The colors adjust by starting auto convergence.
IMPORTANT: Auto convergence works best once the HD Monitor has
warmed up for at least an hour. If you've just unpacked your HD Monitor,
it's a good idea to repeat the Auto convergence function when the
HD Monitor's been running for at least an hour. See page 38 for more
information about Auto convergence.
1. Press OK to begin auto convergence.
2. When the auto convergence is complete, the Red center convergence menu
appears. The cross in the middle of the screen should be yellow. If it is not,
use the arrow buttons to move the red cross to overlap the green cross.
Press OK when adjustments are complete.
3. The Blue center convergence menu appears with a cyan cross in the middle
of the screen. If it is not, use the arrow
Posted on Sep 23, 2008
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