08 Georgetown 374 with a executive DVD player, when playing a DVD, it does not play throughout the coach, the sound only comes through the TV speaker?? We have only used it a few times, I think the coach speakers have worked before, any tricks?
In the menu for the executive player there is a setting to tell it how to output audio. You might mess with that. I don't remember specifics but there was a menu button on the remote I think. It brought up a menu on the screen with lots of setup options.
When I bought mine it was set to use all five speakers as one. Some kind of mono-mode. Once I changed it back to full surround it was much nicer.
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2008 Georgetown SE 350DS BunkHouse
Surprising, our 2007 Georgetown has the same HTS-1000 System and they never ran any cables to allow the sound to come out of the TV or the TV to play through the HTS system. I ended up running them myself. Have you checked the back of the unit? Possibility that a common wire has come disconnected or broke off. I know in my case the bundle of wires were just dangling in the cabinet and had plenty of play to move around as we travelled.
I'm not 100% sure but if you can unplug the unit and leave it unplugged for awhile it may go back to it's default settings which should have the system playing through the HTS-1000 speakers.