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Tv began having picuture turn green and sides of picture became concave. then tv would either correct itself or turn off. toward the end there was also a dark line that went across some shots of the screen about forhead hight. Now it will not produce a picture but I do have sound
Did this for about $300 5 months ago; problem returned; now also have red streaks in picture; good money after bad at this point; do you think there's any sort for guarantee so it wouldn't cost more for them to come back? I feel pretty ripped offDid this for about $300 5 months ago; problem returned; now also have red streaks in picture; good money after bad at this point; do you think there's any sort for guarantee so it wouldn't cost more for them to come back? I feel pretty ripped off
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The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergene board have dead 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must be replaced to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.
By the picture that you have supplied with the question you have a rear projection tv. The problem you are describing sounds like you have had the convergence module in your tv fail. Depending on the age and make of the tv, the repair costs ( if out of warranty ) can be prohibitive. The convergence module on rear projection tv's not only is in charge of bringing the 3 different color images together into a watchable picture but also handles the east west correction ( concave / convex aspect to the picture or lack there of ).
your set has indications of several problems. red green and blue. indcate convegence issue. the fact that the picture is concave is a indication of totall loss of covergence power supply. the convegence menu missing idicate loss of some voltages from what know as the flyback.AND SHUTDOWN. indicate further problems. generally when convergence fails ..not always the set wont shut down. it could be a simple issue but further trobleshooting would have to occur to narrow it down.
Your CRT (Picture Tube) screen mask has become magnetized. You need to degauss the CRT. Have you moved you TV lately or at any point had speaker sitting next to it? These are two things that can magnetize the screen mask. Well in any event you will need what is called a degaussing coil to demagnetize the CRT.
Here is the degaussing procedure:
Standing about 10 feet from the TV Screen turn on the degaussing coil which is in a vertical position and rotate it in a circular motion walking towards the TV .
Once about .5 to 1 inch from the TV continue to rotate the degaussing coil and the move away from the TV while still rotating the coil.
Once at the point where you began, position the coil to a horizontal plane and quickly move the coil back about two feet and the turn the coil off.
you can get it your tv fix the problem is in the IF amp and video circuit.a convergence will also be neeeded.the tv is old but can give you some more life call a tech they will be your tv doc.
Problem 1. Color patches at lower corners. These are caused by magnetic sources close to the TV. Do you have any Speakers close to the sides of the TV? Are they Magnetically sheilded? No? Move them away from the TV. Problem should then resolve itself in a couple of days.
Problem2. Screen Slumping. Most likely a problem with the Pin cushion correction ckts. Get a good technician to have look. cost should not be much. Under 100$ plus Technician fees.
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