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the convergence amps or the resistors have failed on the convergence board. i replace the amps and check the values of all related resistors. it requires good electronics and soldering skill. if you do not have good soldering skills you probally will end up having to replace the entire convergence board
I'm assume you are referring to a non adjustable convergence option. this will occur when you have a damaged convergence chip set that is located on either the PC board or the convergence board. The location of the affected chip will vary from model to model but, in most units, this can be fixed by replacing the convergence board or chip.
HI, normally when this occurs, this will signal a malfunctioning convergence chip that is located o the convergence board. this convergence board controls the calibration attempts when syncing the RGB streams.
Simply replacing the convergence board or chip will fix this issue.
they are located on the board on the left when looking in the rear of the set ( Brown Board) you can get the convergence repair kit at the follwing link which has the ICs , the six pico fuses and four of the feed resistors, plus it comes with instructions, Here's the link.
The convergence IC or in a sense ,amplifiers and the resistor are output resistors... if they are burning up the current going through them is spiking too high... TO me this is an indication that the "convegence yokes" are shorted. These are coils around the tubes that control convergence. I would suspect maybe that these are shorted to ground somehow. This is my first guess for this problem
convergence is tricky.. there are three seprate boards that it is split with.. do you have NO convergece at all.. could be convergence power board...one color... convergence amplifer board.. it it could be the signal board.. there's even a chance it could be a descrete fuse... shoot me some more info..