Got this tv for free from my grandma. after the move it worked great for 2 days. then it would intermittedly display a bowed rainbow effect and the picture would jump to that/black/back into focus. this morning i turned it on with a black screen. It has audio but no video. after several minutes allowing it to warm up it clicked off and went to a blinking red light.
i will replace convergence ic's and resoldering leads is there anything else i should be looking/testing for?
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Re: tv needs fixing, advice appreciated
It would intermittedly display a bowed rainbow effect and the picture would jump to that/black/back into focus.
it was nothing but due to change of place due to decaussing ckt to take care of magnetic effect of earth.
this morning i turned it on with a black screen. It has audio but no video.
your problem it sounds me that it is due to loose contact or loose connector or due to video ckt. as you said that sudio is ok.
if you are not tech person call skilled tech to fix it .it is not a major problem.
hope this will help you
please let me know what happened.
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Contact discount.merchant.com for those parts. I believe they sell both parts. They also have a great customer service line that you can call where they will help you find. I'm thinking of buying a new lamp for my RPTV from (I think I just broke it moving the TV). If you need help with instructions try the fixyourdlp.com/forum -- there is a community of experts there will lots of D.I.Y tips. I used them to figure out a problem I was having with my remote.
Did you notice any better picture when you play a movie on a DVD player or using a flashdrive on this TV? Is the picture quality better? Or is it the same? Try to check another cable connection or try to play TV channel thru internet. The last option in this case is to show a TV mechanic for he would better understand which part to order.
This is whats called a convergence failure. You will need to call in a repair shop or goto sites like www.TvRepairKits.com hthat ave the parts to fix this yourself. Its a common failure on projection TV sets.
shadow mask is warped. tv might have been dropped. crt is bad(picture tube). try deguassing it. if you dont know what that is take it to your local service center. the rainbow effect is a magnetic field of some sort. try unplugging and move to a different location. could be a speaker too close to tv.
Thats usually a very easy repair by replacing FL231, DL231 and CL230 total parts are about 11.00 at the following link and they provide free instructions. The components are all listed under RCA parts category. http://servicemanuals.vstore.ca/
This is likely your convergence IC solder connections. Does it look bowed and rainbow colored? The red, green, and blue will be mis-aligned causing a shadow effect. If you can bump it then the ICs (chips) are still ok, it just needs resoldering.
Once a picture tube gets magnetized it may display the same rainbow
effect on another PC. Do you have anything close to it that could be
causing a magnetic field, like large speakers? If so move them farther
away. A rainbow effect is definately a degaussing and/or a magnetic
field interferrence problem. If the degauss circuit is functioning
properly leaving it turned off for a few hours (so it cools to room
temp internally) and then turning it on should make it degauss. It is
possible that the degauss is not powerful enough to rid the tube of
severe magnetism, in which case you need to use a manual (handheld)
The convergence circuits straighten out the edges of the picture, putting the 3 colors exactly where they should be for the picture to look normal. There are usually 2 large IC's that handle the 6 convergence channels and if one of them burns out then one of the colors bends dramatically. If the power supply for the convergence circuits stops working, then all 3 colors bend in, the colors do not line up with each other and the image looks almost 3D, and the adjustments in the convergence menu will have no effect. I would bet that is the case with your set - the convergence power supply has quit working. If you do not have experience troubleshooting power supplies and realigning convergence circuits in projection TV's then allow a qualified tech to handle it for you.