Case 453434. 02.03.2023 . Sansui 2000x receiver repair. Right channel is scratchy sound , thunderstorm sound on minimum volume level.
After applying heat and cold to all transistors in filter and driver sections found bad transistor 2sc458, position tr806, driver board f-1180.
Problem solved by replacement.
Pluses – simplicity, functions and boards separation ,easy to work on it.
Minuses – speaker plugs design on back panel (easy to break).
