Question about Sony KP-43HT20 43" Rear Projection HDTV-Ready Television
Need to replace the two ic's (stk392-560), can you explain how to remove them?
Use a digital camera to take pictures of the chassis. Review the pictures to see if they can be used to reassemble the wiring plugs or restore the wire tie up positions. Remove the three screws that are located on the front edge of the chassis. After removing wires from their tie up positions or disconecting plugs the goal is to move the chassis into a position to expose the bottom side. Find a place to tie up the chassis using a piece of wire to one of the back screws to anchor this position. Use fresh solder wick and a 60Watt iron to remove the heat sink solder tabs switch to a 25 to 30 watt iron to remove the solder on the STK392-560 ic's. Remove the ic's from the heat sink and apply fresh heat sink grease before mounting the new ic's to the heat sink. Line the pins uniformly on the ic's if needed to install the ic/heat sink assembly. Use a flashlight or lamp to make it easier to see if the pins line up. Twist the solder tabs on the heat sink to secure it's position. Make shure all pins are present to solder in place on the bottom side.
Posted on Dec 06, 2006
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