Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television
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Posted on Jan 02, 2017
SOURCE: no picture on tv screen
When you say no picture, is there any sound or noise coming from rear of set when you try to turn on. If so then you have no high voltage and maybe a cap in the HV line that is bad. If no sound at all, then maybe a fuse or open resistor in powersupply.
Posted on Aug 13, 2007
SOURCE: Green bent line on 48 inch jvc
Check for a burnt resistor on the convergence circuit board. This is usually what happens when the green gets distorted as the green is not adjustable only through the service menu so its either a burnt resistor or a leaky capacitor. Resistor is far more likely. Let me know if you need any further information.
Posted on Jan 24, 2008
SOURCE: JVC 65 inch projection tv
thats how my stared than got worse i call for service and got fix after 4 moths had the same problem and i called the same guy again at firs he told me that the convergence was bad and replaced them i think there are three pieces but than the second time he took the box inside the tv he checked all the circuits and the board and he found out the something else was getting real hot and was causing that the convergence to bad now he fixed hope i got no more problems
Posted on Feb 16, 2008
Okay so the green color that you see on the screen is because the coolant inside of the green picture tube is gone bad (it suppose to be cristal clear but now it is brownish and that makes the green color run all over the screen.) That just happens over time and I'm guessing the picture tubes have never been serviced. Now you got two choices
1- The easiest and fastest way would be to take it to a local repair shop and have them service the coolants of your picture tubes. I'm guessing it would run you about $165 or so to get them done (the three of them red,green and blue)
2-On the other hand you can do it yourself. It is not hard at all but it does require a lot of attention.
After the picture tubes have been serviced you'll notice the big difference.
You'll actually have a much brighter and sharper picture just like when it was new.
Let me know if you decide you want to do it yourself so i can post the instructions for you.
Posted on Aug 24, 2009
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