In the past I had to regularly replace 100 pin odd surface mount microprocessors in Sony CRT TV's. Couldn't do it with the Pace rework station as they are glued to the PCB by about 9 blobs of glue under the chip (overkill or what?).
My technique was to carefully cut all the pins off the chip with a sharp knife, then carefully remove all pins from the board with the soldering iron. This leaves the square legless chip sat glued to the board, and with the pins removed, no chance of damaging the PCB. Next I would get a wide bladed screwdriver and place it against one side of the chip - then hit the handle with a hammer - one or two blows would send the chip flying across the room, with the PCB undamaged.
Then simple scrape the glue reside off, flux the contacts of the PCB with liquid flux, and drop the chip in place - carefully tack it down at a couple of opposite corners, make sure it's lined up correctly, make sure (for the tenth time
) it's the right way round, then brush more liquid flux over the pins and draw the Pace 'spoon' bit full of solder along the pins.
Lastly clean the flux residue off, and test to make sure it all works.
Incidently, chip failure was usually caused by the LOPTX arcing internally - but almost always ONLY on 16:9 sets, the identical 4:3 chassis only rarely did this?.