There is no convergence. try resetting the settings to factory default through the menu. if you have a dlp, the colorwheel and dmd chip are set. if you have an lcd, the lcd panels are locked down. if they are off, you'll need to go inside and realign them physically. but that's chore, because you have to plug it in, turn it on, see which way you need to go, power down, unplug, remove the top cas, remove the main board, adjust, tighten, replace the board, replace the top, plug in, power up, check the image, and do this as manny times as necessary. leave it to the service centers.
You dont it is only an Engineer who can do this as it is very dangerouse due to UV output from the unit when alignment is done.
Its mechanical adjustment usally preformed in a clean room enviorment. Micron adjustments and glued into place. not a field repair. good luck
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