Hi Guys. To respond to your inquiries, the procedure is rather simple. If you open the top chassis of the 7700, follow the power cord as it winds around a ferrite magnet and then clips to a circuit board. Unclip the cord at this connection. You now must cut the power cord where it enters the inside of the chassis, just before the ferrite magnet. This is where you will splice the IEC(female power cord connection)connector, which will be located just outside of the chassis. Simply solder the wires of the IEC to the cut wires. Make sure that you note the correct polarity of the wires(black to black, white to white). The IEC connectors are available at any electronic parts store for about $3 to $5. It may not look that pretty from the back of your Sony, but it does the job in allowing a high-end power cord to be attached. Hope that helps explain the procedure. I'm no electrician, but with a little care the whole procedure is rather simple. Thanks- Gregg