CHANGING OUTPUT BOARD SS-200
After determining which channel is malfunctioning, remove the blue bottom grill to expose the output boards. The monitor board is nearest the monitor speaker sockets and the internal/external selector switch on the rear panel; the main board is at the opposite side, near the phono input socket.
Make a careful sketch of all wires leading to the defective board, and unsolder them. Remove the four nuts holding the board in place and remove the defective board.
Install the new board, resolder the connections, and check the unit. If it is not operating properly, call us.