Question about Harman Kardon AVR 300 Receiver
No matter what setting the reciever is on, the surround sound
shows off on the display screen. Just the front speakers seem
to operate when a DVD is in play. The speakers work when in
a test mode, except the surround speaker is not included in the
testing operation on the AVR300
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Posted on Jan 02, 2017
SOURCE: no surround sound
So your saying that you have no rear channel. Some recivers use a single stereo output ic for both sides on the rear speakers. you could have a defect with this IC . Anther thing Im sure you check3ed the obvious ie : the switch is on suround sound? If there is a front to rear fader is it in the middle? Good Luck
Posted on Jun 04, 2006
SOURCE: humming noise
Usually Humming noises come from frequency interferance. In this case it is being caused by your input sources. A smiply solution is to replace the cables and or seperate the source cables away from any electircal cords or sources.
Posted on Jan 07, 2009
SOURCE: Harmon Kardon unlock error
I have the same problem. All of a sudden no sound through my TV connection (but through the DVD connection the sound was still working). I changed the connection from video 1 to video 2 and got the sound back. It is not a real solution, but a practical one :-)
Posted on Feb 01, 2009
The protect message means that the outputs are shorted. This is a fairly common problem that can easily be fixed by any shop that handles audio gear. Expect a parts cost in the $20-$40 range.
Posted on Mar 17, 2009
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