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I have a lg 58cm crt tv and when it is turned on all it does is beep it has no sound or picture the tv is appproxamately 2.5 years old

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Unit has circuit problems, take it to pro/tech for repair

Posted on Apr 22, 2008

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You TV has a bad CRT, a red CRT by the sounds of it. This TV is rather old, perhaps 11-13 years of age? Your TV has given you many years of service and I do applaud you for the care you have given it and the TV for it’s reliable in your home. The trouble you face with a rear projection CRT set of this age is that you can’t just change 1 CRT tube and expect it to be reliable and produce a good picture. All 3 tubes should be replaced, as they have all aged the same. The lives of these tubes are only about 7 years. A tube is not any easy or inexpensive repair on any RPJ TV. When you are faced with the cost of 3 tubes, which may not even be available in the market place… You should consider retiring this old friend and keep the manufacture in mind as you make a new purchase.

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We have a JVC color tv that is about 10 years old. We can get sound, but, only aabout 1/2' wide picture across the screen. Is the picture tube going out?


Your CRT is probably not the problem, it is most likely one of the control circuits. Unfortunately while it is probably not an expensive fix finding a tv repairman may prove challenging at best.

Sorry
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RCA 32 in TV no picture no sound just a beeping noise TV power is on


The beeping sound is most likely the high voltage generator needing replacement. This is a fairly easy job if you have some tech support to discharge the picture tube. You can go to the following link and leave them an email with your model number and your symptom and they will email you back with the part you need and they provide free tech support with instant messageing so you can do the repair yourself. the HV generator takes about a half hr to replace and takes only the basic soldering ability. heres the link.
http://servicemanuals.vstore.ca/

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sounds like 2 different problems here. first problem sounds tuner related. second sounds convergence related. third issue (cost effective to repair ?) at this point i would replace the set. i hope this helps

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sounds like your crt tubes...meaning Red, Green and Blue are out of alignment...or possibly 1 of the crt's is burned out.

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Initially No Picture when Turned on but sound normal and 5 minutes later Picture is all RED and then Picture becomes NORMAL (all normal colors)


theres a high voltage block that all three of the anode leads attach to and sometimes a small crack happens across this block and will not let some or all of the crt's get the high voltage all at once untill it heats up a bit. now if this is not your problem i would make sure that all three crt sockets are attached to there tubes all the way as maybe justy maybe there loose and will only work after ther expand a bit. Now another problem that could cause this problem to occor origially would be that someone left off a crt ground strap and the crt arched and popped and caused the problem with the High voltage block. And no I cant see a tube being bad then comming on at first UNLESS when you say the red comes on is the picture all red with small retrace lines(small white lines)in the screen with no picture except for red???? No video only a red blank screen is what i mean. If thats what its doing then yes Ive seen heater to cathode shorts on a picture tube that would cause this problem but to be sure your really gonna need to have the set looked at.. Good Luck

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