Diagnosing The Problem

• Although the malfunction is commonly called a blue arc, it can appear in a variety of forms. Your screen might produce an artificial three-dimensional effect, the colors may not align properly, some of the colors can't be adjusted through the convergence menu or the screen may appear to be bowed or warped.
  
  If you experience any of these problems, verify whether or not the television's convergence chips are to blame. Using your remote control, hit the menu or settings button and find the convergence section. Try adjusting the red and blue settings. If you're unable to move the settings up, down, left and right, your convergence chips have failed and will need to be replaced.
  
  

Solving The Problem

• You have a couple of ways to replace the convergence chips in your projection television set. If you don't want to attempt a repair yourself, you can take the set to a repair shop. Be aware that the cost of a repair might be more than what the TV is worth. Or you can attempt the repair yourself. Visiting a website such as TVRepairKits.com for information about a repair kit, including pricing and appropriate parts for your TV model. Note that some soldering is required, so be sure to have a soldering gun.
  
  Convergence problems are common among projection televisions, and it isn't difficult to find a repair kit. A typical repair kit will include convergence chips, thermal paste, convergence resistors, a photographic instruction manual and soldering tips. The price of a kit will be around $70 including shipping. If you have trouble with your repair, a TVRepairKits.com technician can offer technical support.