On My ' Harman / Kardon AVR 20 Dolby Pro Logic Surround 5.1 AV
Receiver '.
There Is Not Any Sound Playing Out Of The Surround Sound's Right &
Left Rear Speaker's. But When I Press The 'TEST' Button The Tone Is
Heard Just Fine Through The Left & Right Front Speaker's & Also The
Center Chanel Speaker, But The Rear Surround Sound Speaker's Play's
The Test Tone At A Very Low Volume.
The User's Manual Say's On The Original Remote Control ( Which I
Don't Have ) You Can Adjust The Rear Speaker's Volume With The
Remote Control. Is This The Only Way The Rear Surround Sound
Speaker's Can Be Adjusted.