Double picture my friend chanche the convergence on my jvc model#av56wp30 but i still have double picture he told me change the resistor but i dont know what kind my tv need I have a AV-48WP34 with a double picture on it with a red tint

Start in the center of the grid and work you way out in circles....do small adjustments....its better to make several passes...Look on the tv repair tips page on www.TvRepairKits.com for more info.

The convergence ICs have failed. You can get the JVC AV48WP74 - AV65WP74 convergence repair kit from www.tvrepairworld.com which has the ICs and resistors plus the CD with detailed repair instructions.

Ur convergence is dead.Must replaced the 2 Convergence ICS and all it resistors.By replacing these 2 convergence ICS well solved these problems colors misalign, 3D double pictures,blurry pictures.The shop will cost U $300 for parts and labors.

often on that model the DCU which is on that same board is where the problem is especially if new ICs and resistors dont fix the Issue. The DCU is the metal cased unit which is next to the Convergence ICs heatsinks

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...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*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

You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

You will need to replace the convergence iCs there are two of them they are both STK392-110 Ics you will also need the JVC convergence resistor kit. You can get the ICs and resistor kit at the following link and they provide free instalation instructions with pictures. Heres the link.
http://servicemanuals.vstore.ca/

does your TV has the stat adjustments in the CRT or near the chroma IC it is a trimmer resistor or a rheostat try to adjust it...

you have to lift one side of the resistor from circuit in order to measure resistance otherwise a open resistor will not read open as you will be reading the resistance from the surrounding circuit. Always lift one side of a resistor out of circuit when testing with a ohms meter.

1024x768 Normal 0 Convergence


When A REAR PROJECTION TV has coloured outlines or a 3D image the Convergence Circuits most likely need attention.

Replacing the output amplifiers (located within the Convergence IC's) allows the pictures to line up correctly, and no more color outlines.

This is the most common fault in all makes of rear projection TVs.

Some models of TV require major disassembly and considerable shop/manufacturer's support to repair because of their design that causes other power supply or vertical deflection problems. The poorly designed products require a "bench" repair that can typically cost from $350 t0 $700.

Some TVs are designed for on-site repair and have more reliable circuit design that does not usually cause damage to other parts of the TV when convergence chips fail. The ones that usually allow reliable on-site repair are JVC, Samsung and Hitachi.

It is normal to have some resistors in the circuit burn up or increase in value from the heat (from 2.2 ohms to 5 or 10 ohms). These resistors must be replaced with the right value or the chip may fail again.

This is not a simple repair like changing batteries or a fuse. Reading through the other posts shows many that try and end up with bigger problems.

Your JVC uses STK 392-110 IC's. Misinformed people replace the IC's with other "new and improved" IC's, like STK 392-150. These are devices with different characteristics and require different value resistors in the circuit. Replacing with the STK 392-150 will cause overheating of the resistors and a damaged IC.

If you are in Calgary, I can help. If not, get someone that has experience working on your JVC. My website is below with some costs and explanation.

calgaryconvergencerepair.weebly.com/convergence-explanation.html

Good Luck,

Easyab

The convergence circuit needs repaired. I did the same job yesterday on this model. I not only replaced the convergence ICs, but, I had to replace a couple of resistors and a coil. The convergence alignment was minor after that.