Ubove is examples of diodes,( the BR-820 is a bridge, disregard it) the have two leads, one on each side, and will have a band on one end.
The diode number should be listed (silkscreened) on the pc board, look for D 80
, now flip the radio over and find were the two legs or leads come through the board. Using a small soldering iron, and some solder wick, remove the solder from one of the leads, and pull it up from the top of the board, so that one side is not connected.
This is assuming that you are comfortable with your soldering skills.
If not, have some one that is do it for you, its not that hard, but if not done properly, you can bugger up your radio.
73
Jeff