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

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I have a jvc av48wp30

I turned my tv on today and there are green lines across the screen and words are doubled what can i do. thanks bigmoe

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Re: i have a jvc av48wp30 - JVC AV-48WP74 48" Rear Projection HDTV-Ready Television Projection Televisions

You have bad convergence circuit.

Posted on Aug 19, 2007

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JVC AV48WP30 Projection TV..Half picture distorted and flickering

Ur convergence is dead.Must replaced the 2 convergence ICS and all it resistors.The shop will cost U $300 for parts and parts.

Feb 10, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Our TV has, almost what appears to be, a double, colors are shadowing

You can get the JVC AV48WP30 convergence repair kit from which should repair that issue. The kit contains the parts and detailed instructions on CD

Nov 23, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Vertical jitters on picture - JVC AV48P776

What you are experiancing is loss of High voltage. The line is called a retrace line. It is usally caused by failure of the flyback circuit or aging of the TV tube. This is the single most common failure with CRT based display systems. The high voltage can be tweaked up, to accomidate for the age of the tube. Its a short term solution. Because of the high voltage nature of this circuit, suggest a professional repair.

Jun 29, 2009 | JVC AV48P777 Television

1 Answer

Red horizontal lines

Misaligned red lines in your TV is due to failure of Convergence Out ICs and requires replacement.

Let me know if you are familiar with TV repair to provide you part number info OR call local TV tech to fix the TV.

Apr 18, 2009 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Arched pink lines across screen. Now green and pink double stacked wording.

Projection sets have two very common problems.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya

Oct 25, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Sony 65 inch screen tv

Yes the red tube is shorted. I will post a link to the site where I work as they have an entire AV48WP30 with a bad tuner they are selling parts off of including the Tubes. they also provide free info on how to switch out the tubes as a unit which is a fairly easy job. Heres the link.

May 21, 2008 | JVC AV-48WP30 48" Rear Projection...

2 Answers

Vertical color lines

Here is a picture of my TV problem, the green horizontal line is from the camera flash. thanks for the help.4d2ca33.jpg

Jan 15, 2008 | JVC AV-48WP30 48" Rear Projection...

2 Answers

Color on my big screen tv

sounds like you need to have the two convergence IC's replaced. These are soldered on the main board. Good Luck

Jul 16, 2007 | Philips 46PP9302 46" Rear Projection...

1 Answer

Tv screen waves and is double

No. You have bad convergence output ic;s and probably at least 1 burnt resistor. This liely will have to be reconvergec in the servcie menu after the aprts are changed.

Jul 12, 2007 | JVC AV-56WP30 56" Rear Projection...

1 Answer

No clue

Sounds like failures of the convergence output IC's. They should be STK392-110's in the set. Also check associated circuitry around them.

Mar 24, 2007 | Hitachi 43F300 43" Rear Projection...

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