Panasonic legacy connection

The inputs may be assignable on the Harman Kardon. Make sure you have selected the proper analog or digital input type for the cable you are using. For more information, or should you have further questions, please visit my website at audioserviceclinic.com. You may contact me directly through the website. Thank you.

Make sure TV's HDMI port is working if it is working check it with a new HDMI cable changing the HDMI cable will fix the problem

You probably have to select the optical input from the menu for sources of your component connection. Most receivers allow you to select optical, coax, or plain PCM right/left audio.

It does not have any of the usual HDMI or component video jacks on the back. The highest 'def' video it supports is S-Video (standard def).

http://en.wikipedia.org/wiki/S-Video

It is NOT necessary to route video through an audio device. Your TV is the ultimate and most logical first recipient of any high def video content.

Whatever video you elect to pass through this thing is not modified in a good way if at all. You COULD just run the HiDef video straight to the TV and not have to worry about what could be happening in the excessive and unnecessary cabling that takes it for a trip through the receiver.

The receiver can still be managed by running its composite (standard def) video from the Monitor Out to a composite input of your new TV.

Likewise, no digital audio would improve from passing it through any device that just acts as a stepping stone to the receiver and ultimately your ears. That iswhy all decent A/V gear has provisions to run the signals separately to their optimum electronic end-user.

only if the harmon kardon has video in (yellow) and video out. otherwise just the audio should go into the harmon

Hi if there is an optical out on the television i would use that direct to your Harmon Kardon AVR 125, the sound would be in sync with picture, as the source is the same.

check to make sure you dont have a bad hdmi cable thats what it sounds like is stereo balance set to the middle on the receiver.

It is either a mismatch or improper ground connection.
Try correcting it by putting a ground line at your AVR
254.

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 :-)

plug eash units sound in red whites from dvd tv main out the set speaker wires in place front ch a ok turn it on make sure ch a speakers on only select corect video input dvd ect turn it up