I am having difficulties with extracting box keys from my new JVC 6000 dish network receicer.I unplug the box, line up the pogo a ground pins, touch to the appropriate solder points in the jtag port, and plug the box in. As soon as it receives power,the receiver emits a high pitched squeel! I attempt to power on the box, but it does not respond. I turn on JKEYS and check the settings, then hit detect. Nothing happens! I am chasing my tail here! Anyone with experience? I could use some help!