20 Most Recent Harman Kardon AVR 320 Receiver Questions & Answers

optical / digital connection is the best you are going to get

Are there any error messages on the display ? Any blinking lights? Harman Kardon US

Likely bad output transistor(s) which are the large transistors mounted to the heat sink. Use a multimeter and set to diode check to find the bad transistor(s). Replace the shorted transistors..... and any bad components in the bias / output section of the amp. That is the most likely the trouble with your receiver although there could be many other problems.

Many times a capacitor is used in place of an actual battery. On Harman Kardon receivers this component is on the front side circuit board behind the receivers external display. Harman Kardons website provides the actual location and part number if you dig around for the service manual PDF.

They just overheat, ours does, have plenty of circulation and a fan behind it if its warm.

This has happed to me on several occasions. Try replacing the remote's batteries. That solved it every time.

Turn the volume control to something medium.

The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.

Carefully examine the front panel for clues like a misplaced Source Selection, Mute, Tape Monitor control or Multichannel Analog Input selected.

If you have an aha moment turn the volume to something reasonable and see if that helped.

Optical digital cables are more finicky than coaxial ones. The seating has to be precise and there can be no small radius bends or kinks in them. Evaluate the routing.

I'd use coaxial if I had the choice.

Two major benefits:

1) cheap standard RCA cable that you can run pretty much as far as you want in the home environment;

2) they can multiply your available coaxial digital jacks because they can be 'shared' between two digital sources or end-units by employing an RCA splitter cable.

You just have to remember to turn OFF the device you're not using at any particular moment so you don't have a 3-way digital conversation garbling things up.

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We have this same problem We had friend visiting; he pushed a button and we've lost sound but only on the dvd. I've tried every setting I can think of, but can't get sound. Did you find a solution?

I have experienced this problem with an AVR510. When the power goes out or it is unplugged from the wall there seems to be no memory of the input settings for each of the sources. If you have it set for a dvd player connected with digital coax, when the power goes out it will revert to the factory default of analog. The receiver will be looking for an analog RCA connection input from the DVD not digital coax or fiber optic. Try resetting your input settings for each source to match your wiring.

so you have the yellow out from dvd player to yellow in on the receiver (composite video) and the red and white out from dvd player to red and white in on the receiver (right and left audio channel) . you can also plug in the orange rca (digital coaxial audio) go to your menu on the Haman Kardon receiver and make sure you select the right audio input. mine is a Harman Kardon AVR146 push th osd (on screen display) on the remote. go ti the input setup and select the appropriate audio input