Question about JVC AV-48WP74 48" Rear Projection HDTV-Ready Television

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My big screen...

I have red lines bouncing up and down across my screen. I have tried to turn it off and let it cool down, but this does not help. They stay on there at all times and blurs the screen. What do I do?

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I think your convergance ic are going...
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

or you can send in to prtcorp.com to have repaired

Posted on Jan 09, 2008

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Posted on Jan 02, 2017

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1 Answer

Sony kp-ws500 has very fine red and blue horizontal lines across screen tried adjusting convergence, and it didn't do anything


Red and Blue Tube screen drive controls needs to be turned down some, tubes are over driving causeing drive lines.

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Red green lines across my screen on 51 inch tv hdtv


If you cannot align those crosses, then the convergence section is damaged. should be repaired by a qualified technician, its a big job.

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1 Answer

Red,green and blue lines across screen


I f these lines are slightly diagonal and they all showed up at the same time. you probaly have an open resistor in the ABL circuit. since your set is 13 yrs old, I would not put a penny into it.
You might take the front grill cover off and the panel behind it and find the little black box with 6 little controls 3 are for focus 3 are for screen turn the screen ones ever so slightly counter clock wise. the control in the middle is the green screen adjustment. If the green line goes away try the one labeled r for red and b for blue.

Mar 31, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...

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I have a Sony Big Screen Projection TV


unless you work on t.v.s this is nothing you can service.check your warranty &/or call a qualified service tech.hope this helps

Nov 15, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

RED SCREEN


hell yeah,
the biggest mistake I did with this tv.all tubes need to be replaced and it burns a hole in ur pocket.no guarantee on tubes,sony aware of the problem but didnot recall these defective sets.
good luck.
nanz

Oct 27, 2008 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Red Horizonal Lines


Good Day;
You may have bad picture tube or convergence problem. Good Luck, big IRIShH.

Sep 18, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Green cruve line


Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

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Philips 50PFP5332D


I have sound but no picture. At first, there was picture but a lot of red lines running up and down as well as across. There were also two bars in the middle of the screen. I turned it off for a while and let it cool down but when I turned it on there was no sound at all. Do I need to have philips replace it? It's under warranty

May 17, 2008 | Philips Televison & Video

1 Answer

Red line across top half of screen


Uh-Oh.. Sounds like the BGA RAM in the video circuit. (These units are Intel based and Core 2 duo if posted correct).. We can repair if you need help and its under warranty and sorry its not a home remedy situation..

ikenfixit.com

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1 Answer

Red line across top half of screen


Inverter board is bad or video cable loose either behind LCD panel or near video adapter.

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