There is a 3 position toggle switch for Dolby NR on my Technics RS-M63. The location for this switch is probably not relevant but you can see that location, identified by the horribly drawn arrow, on the attached photograph of my deck. It is, as said, 3 position and each position has two...
My Sansui 7070 has been with me over 4 years ago, but was neglected for the past two years. Recently I took it out and play it again, found that the left channel is rather weak and scratchy. Random fiddling led me to discover that if I press the "Dolby NR / 4 Channel Adapter" button (which will...