Hi my name is Tom! I am from Hungarry. My jvc tu-42v31bue plasma display tunner dosent work. I want buy a working tunner box, for my display. Please Help for me. Sorry but i can't speak english :/ my email addres email@example.com !
Guess what? I have the EXACT same tuner that u're looking for... my place was broken into and they TOOK the tv monitor... but left behind the tuner . smart thief. if u're interested in buying this tuner to make ur tv complete again. (its in MINT condition) email me at FAIR1968LANE@aol.com and put in JVC PD 42wv74 plasma tv in subject so i d know who it was. thanks.
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The TCON board or the LCD panel is faulty. You have to replace the TCON board to confirm it.
If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
This is a screen with a media box. The box has two connections to the display panel. The first looks like a DVI connector. The second is the proprietory control port connection. This is how the set receives commands about brightness, contrast etc, scaling, aspect ratio. It might even control such basics as power on/off.
You could try the panel just with a DVI connection, but you will have to make sure that all sources are scaled to the panel's native resolution (1024x768) before they reach the screen. This is part of what the media box does. You might be okay if you're driving the panel direct from a PC graphics card. But if you want to run it with a variety of different sources then you really need to use the JVC media box.
Hello Check its power supply board for any damaged capacitors. Replace them if found or suspected. Take special care to main filter capacitors. check all the output voltage smoothing capaciotrs too. If all are OK, and still the problem perists, replace the power supply board as card basis.
The most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board. I can't say it's 100% the problem because I can't actually look at the tv over the internet. If by chance the TV is still under warranty, go that route. If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.