Hi, My hitachi works pretty well. Recently, though, there is an abstract shaped area - pretty large - in the center of the television that is a lighter area than the rest of the screen. Most of the time we can't even notice but it becomes quite apparent when it's a solid color background such as an underwater scene or a sky scene. I was hoping to get an idea as to what this might be before having a service man come out to take a look. If this a potentially expensive problem to fix, we'll probably choose to just live with it.
I'd appreciate any assistance you could give!! Thank you!
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Ur tv convergence are dead.U know how to solders?Must replaced 2 STK convergence ICS,and some or all the resistors.Tries Websites Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost $300-350 for parts and labors.
Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.
The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.
You can find more details and solutions here on Fixya at the following link below. Or click HERE
Hi, not good news, you have a bad surround module and this is a VERY difficult repair job, most techs send it to PTS and then they don`t get it right about 10% of the time either, Have a tech pull the board and send it out theres nothing you can do to repair it, sorry for the bad news, video-tek
The convergence circuit is having a problem. This can be either bad connections at the pins of the convergence ICs or defective ICs. These are large black ICs attached to a heat sink and should be marked STK-XXX. If you can solder, try resoldering the pins of these ICs first. If that failes to resolve the problem, replace the ICs. The should be no additional alignment necessatry once the ICs have been replaced.
Double check your work for errors such as solder bridges or incorrect resistor placement. Look carefully anywhere solder could have dripped or splattered to cause the bowing. If you entered the digital convergence mode to touch it up, you will have to re initialize the magic focus for it to function. Good luck
The convergence Ics need replaced. In Hitachi, resistors and sometimes a coil needs replaced as well.
The convergence/deflection PCB is available, but, the cost of that board is higher than having a servicer come to your home and repair the unit to component level.
If you are not familar with this circuit, then call a servicer. Have them replace both ICs not just one. Make sure they are repairing to component level and not replacing the board.
Hope this helps.