JVC AV-56WP30 56" Rear Projection Television - Answered Questions & Fixed issues

HOW TO FIX MY JVC TV

I would guess that the top and bottom of the picture is pulled toward the center of the screen as well. This is a convergence problem. If you can solder, you should be able to repair this yourself. If you wish to attempt this repair, please update this and I will provide more details and instructions.

Thanks,
Dan

bad power slup or bad con,v ic stk392-120

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com Common Problem #1) Convergence has gone outProjection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem. Common Symptoms include....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. The power light will blink. TV may also make a chirping noise.

Here are some pics of convergence problems. SOLUTION #1What you will need to do is convergence. You can get a repair kit from TvRepairKits.com . It includes replacement parts,step by step instructions, support, etc.Common Problem #2) CRT Fluid is CloudyProjection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images. Picture of a set that needs the fluid changed. TV set after fluid change SOLUTIONWhat you will need to do is replace the coolant and clean the crt. You can get a repair kit from TvRepairKits.com . It includes replacement coolant,step by step instructions, support, etc.

Your convegence has gone out. You can get complete kits with instructions from sites such as www.TvRepairKits.com or just the parts from www.ConvergenceChips.com . If you have never done this before i would suggest going the kit route since it includes step by step photo instructions and support.

hi keith, if it smokes a bit leave unplugged and get a engineer to have a look at it straight away good luckregardsshaun

Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example photo....

Have You replaced the convergence ICs Yet? They are Big Black ICs and will have part number on them .
example STK392-110
Mats Electronics has ICs 1-800-628-1118

The set uses a pair of STK-392-110 convergence IC chips.

Fairly easy to get at in this model (I can tell you how) and if purchased on EBAY parts will cost less than 20 dollars.

They are soldered in but the board comes out fairly easy.

See attached photos of what convergence problem looks like and also a photo of a typical chip.

Before you rate this information let me know if you have questions with a comment here.


SD TECH









Above is what the board in your set looks like.

Hello
The audio output IC has some troube with it. if it overheat, the fault you describes here will coccur. Normally audio output IC will be screwed on to a metal heat sink to radiate heat away from it while working. If the screw that holds the IC to heatsink get loose, proper heat radiation won't take place, IC will overheat with time and will shut OFF by itself. Check the screw first. Resoder all the soldeer terminals of that IC, by applying a little more solder, without making any solder bridge in between the adjecent solder terminals. This process will eliminate if there is any loose soldering junctions to the terminals of that IC. If these does not help you, replace that IC with same type and number. OK.

try to restart it again anf leave it there for about and hour just to refresh the telivision..

Replace the convergence ICs and resistors. You can get the JVC repair kit called the AV48WP30 - AV65wp30 convergence repair kit from www.tvrepairworld.com which contains the ICs, Resistors, and the CD with repair instructions.

All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. In some cases the TV will also not show any video. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

• Screen looks 3D, wavy, or has a shadow or shadows
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some pics of convergence problems.





SOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.


TV set after fluid change



SOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Please do us a favor and rate this solution after reading.

Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some pics of convergence problems.





SOLUTION #1

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

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.


TV set after fluid change



SOLUTION

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

Please do us a favor and rate this solution after reading

convergence issue. The JVC repair kit called the AV48wp30 - AV65WP30 convergence repair kit is the correct kit for your model and symptom. Its available from www.tvrepairworld.com and the kit contains the parts and the CD with repair instructions.

Maybe so. Convergence is generally controlled by two large ic's " chips" from the symptoms you describe the convergence ic or stk's as they are commonly called are possible blown. When these short generally that will lead to a shutdown. There could be additional problems as always. Cost are difficult to deternine depending on where you get your repair. If the chips are the problem they generally average about 25 to 50 apeice for the chips. Our shop generally charged about 150 to 200 for such a repair. My advice is it is cost affective to repair this set. .Note: when these ic's blown they can damage other components that might add to cost of repair.

this like problem from tv bulb, change it with new one

Oh dear, sounds like you have taken on a difficult job.

There is only need for two colours to be adjusted as the third colour remains static. I am at a loss as to recomend what the problem is except when soldering/de soldering unless you are using a static sensitive iron and conform to static protection, you may find that you are putting faults on the new Ic's as you fit them.
You have to fit new Ic's without damaging them with static.
If you remove the convergeance panel from the TV, place it on a bench that is of the same potential as your iron, that is the only way to guaratee that there will be no static damage.
The Ic's used use CMos technology and their inputs are highly sensitive.
When you get your system back as it was the colour that does not move stays static. Say green as that is the commom colour.
Cover the blue gun with a piece of paper/card to block the light and set the Red to meet the Green. Then cover the Red and do the same with the Blue. Now the Blue is more difficult to do because people see Blue from a TV in a differen way.
New/replacement panels are probbably not available but check ebay for an old unit if the board becomes unserviceable.
I hope that helps.

Ur tv have a problems known as a convergence problems,it dead.The tv have colors lines R,B,G mis alignments,have colors shadows pictures or 3D picture look alike?The tv convergence board it is dead.The tv convergence board,must require repalcing 2 STK convergence ICS and some or all of it resistors too.The tv convergence board is fix,will solved ur tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Sounds like one of your convergence IC's has failed. One easy way to find out is to go into the menu and try and adjust the red if it wont move then its for sure defective. You called it a wave and the typical of convergence IC failure. Your set either has 2 or 3 convergence IC's and I would replace them all. If you can solder then you can do it yourself other wise call a tv shop and ask what they will charge to replace them.. there part numbers usually start with stk392-xxx take the back off and you can see them. They are about 3 inches wide and 2 inches tall and black.