Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: Herb Stark on April 25, 2025, 06:45:26 pm
Title: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 25, 2025, 06:45:26 pm
I replaced the 12 year old 47 inch Panasonic TV in the front of IH-45 with a new Samsung OLED 55 inch. It fit snug but looks great and plays great. My old eyes enjoy it very much. There was only one HDMI Cable going somewhere from the Dropdown ceiling mount, so we connected it to the HDMI ARC and turned the sound system on back in the back. No JOY. The sound system works very well playing a local FM station. Great sound from speakers all over the coach. So today I decided to track down the way that Foretravel hooked the TV at the Front windshield to the Integra DTR-30.4 Receiver in the closet in the rear of the coach. In the drawing that Foretravel furnished for my build number which is probably for a different location for the Living room TV since it refers to a cabinet below the Living Room TV. I found a panel above the windshield that is removable. Once removed I was able to see what the HDMi cable was connected to. Strapped to a support behind the removable panel was a HDMI Extender Receiver with a Data Cable running somewhere. The Data Cable was labeled "LRTV 63 Data". So I went to the back closet and found the HDMI Extender Transmitter with a short HDMI Cable and the other end of the LRTV 63 Data Cable which was a CAT 5 or 6. The short HDMI cable was not connected. So I assumed it would need to get into the Integra DTR-30.4 which powers the speakers in the coach. I found an HDMI ARC receptacle that was open, so I connected it there. I made sure that power was supplied to the HDMI Extender transmitter. I then went back up front and checked the TV. The Samsung Smart TV now recognized the DTR-30.4 by model number and it became an option for TV Sound which I selected but was disappointed to find that no TV sound came out to the speakers. I checked the manual for the TE HDMI Extender System and it showed a connection from a TV HDMI ARC to an audio surround receiver HDMI ARC.
So it appears that I now have: 1. a connection from Samsung TV ARC to the DTR-30.4 Receiver ARC. 2. I am able to select the DTR-30.4 as an option for Sound output from the Samsung TV 3. The DTR-30.4 has buttons to select several options, AM, FM, others, and one for TV.
However I am not able to get TV Sound out of the receiver even though the FM and AM buttons work. I have not tried the CD Player that is mounted above the receiver, but it probably works also, but NO TV.
Maybe someone here has replaced their TV and can assist with some things to check.
Title: Re: Smart TV to Sound System in IH-45
Post by: Michelle on April 25, 2025, 06:56:40 pm
Have you tried the different encoding/format options on the TV for the ARC/eARC outputs?
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on April 25, 2025, 10:18:08 pm
When you watch the blu-ray does the sound work correct through the coach speakers?
When trying to watch either local channels or something from the TV you have no sound from the receiver?
Have you tried pressing and holding for few seconds the top left button from the URC 880Z remote that is labeled living TV or something similar. I am not at the coach to see exactly what the top left Icon is saying. I am referring to the button to the left of the top left icon.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 26, 2025, 07:06:08 am
When you watch the blu-ray does the sound work correct through the coach speakers?
When trying to watch either local channels or something from the TV you have no sound from the receiver?
Have you tried pressing and holding for few seconds the top left button from the URC 880Z remote that is labeled living TV or something similar. I am not at the coach to see exactly what the top left Icon is saying. I am referring to the button to the left of the top left icon.
I do not have a blue-ray unless it is the CD Player mounted in the rack just above the Receiver. I will bring a Movie to try in that box. Also I have not found the URC 880Z remote, I see a remote referenced in the manual for the receiver. I will look for it when I return to the coach. Thanks, it appears that somethings are only able to do with the remote. I just checked Google and I do have that remote, I did not know why but thanks for bringing it up, I will see if I can charge the batteries in it and make it function when I return.
It appears that somethings were taken out of the rack because of the way some cables were not terminated. But by using the FM Radio, I was able to determine that all of the speakers appear to operate, I can select whole house which adds speakers in bedroom and closet to the Living area speakers which work normally.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on April 26, 2025, 08:35:30 am
The cd/DVD player will also play blu-ray disc's. Button on remote is called blu-ray. You have to hold the button next to the icon you want for a short time until a message comes up saying you don't have to aim remote at the TV.
Push the TV/CD button on receiver you will hear TV source sound on coach speakers with the source of the sound being your Living Room TV. That is as long as everything to make that work is working correctly.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 26, 2025, 05:04:17 pm
The cd/DVD player will also play blu-ray disc's. Button on remote is called blu-ray. You have to hold the button next to the icon you want for a short time until a message comes up saying you don't have to aim remote at the TV.
Push the TV/CD button on receiver you will hear TV source sound on coach speakers with the source of the sound being your Living Room TV. That is as long as everything to make that work is working correctly.
Yes, I have pushed the TV/CD button on the receiver. When I turn the receiver on, with the TV button on, it will change the TV to try to play sound from the TV to the receiver automatically, if the TV is on playing sound through the TV speakers, it will automatically change to the DTR-30.4 in the settings and the sound goes away somewhere in the etherland. Not to the coach speakers.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 26, 2025, 05:08:35 pm
The cd/DVD player will also play blu-ray disc's. Button on remote is called blu-ray. You have to hold the button next to the icon you want for a short time until a message comes up saying you don't have to aim remote at the TV.
Push the TV/CD button on receiver you will hear TV source sound on coach speakers with the source of the sound being your Living Room TV. That is as long as everything to make that work is working correctly.
I can see if the HDMI ARC connection is working from the CD/DVD player to the TV when I return.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 26, 2025, 05:11:24 pm
The HDMI ARC connection could be working one way to the TV since the TV knows that a DTR-30.4 is connected to it.
Title: Re: Smart TV to Sound System in IH-45
Post by: Michelle on April 26, 2025, 05:29:05 pm
Newer smart TVs are likely going to support protocols that the older coach A/V doesn't understand. You might need to research what encoding/protocols/formats the coach equipment can handle, then see if the TV has that/those as options to try for sound output to the connected equipment.
I'm definitely not well-versed in this, I've just observed Steve fighting with our home LG TVs (and our Roku) to make TV sound come out the subwoofer and sound bar.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 26, 2025, 06:21:30 pm
At this point I am thinking that the HDMI Extender may be the problem. It does appear to work at least one way, from the receiver to the TV. I have checked all the connections for the extender and they seem to match what the schematic shows although some cable numbers and the locations seem to be for another coach Living room design. But electrically appear to match ok. Got to figure that the extender pair is at least from 2012 or 2013. Maybe a newer design or current model may be in order. Thanks Michelle and Jack for your thoughts.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 29, 2025, 02:26:43 pm
UDATE:
I am back at the Motorhome. The player above the receiver in the rack at the rear closet is an Integra Blueray DVD Player. I can play a Blueray Disc and I can hear the sound through the surround sound speakers throughout the coach. However I cannot seI e video, just a nice blue color and a caption that states it is a DVD and coming in on HDMI. I can control the sound of the coach speakers with my Samsung remote that came with the new TV. I believe that is because I enabled the ARC and CEC options. I can turn on the Integra DTR-30.4 with my Samsung remote by selecting the DTR-30.4 as a connection same as the TV Speakers. I can control the volume setting with my remote, but there is no sound coming out the coach speakers. I can switch back to the TV Speakers and sound is normal. It appears that I am only getting minimal data for control and switching via the HDMI Extenders. All of the connections to the HDMI Extenders TX at the Surround sound receiver, the DTR-30.4 and the HDMI Extender RX at the Television. I could buy a newer HDMI Extender System, some are wireless using 5ghz and some are like the ones I have using Ethernet cable between the TX and RX units.
I bought the TV from Best Buy. At this point I think I need to get a young man or lady on their Geek Squad with more current experience on sound systems and connections than I have. I really do want to use the surround sound with the TV even though the TV Speakers are not too bad, better than some I have had.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on April 29, 2025, 04:04:15 pm
When you are trying to watch the blue ray, on the key digital matrix switch the top left control should be on the third light. 1st is Sat1, 2nd is Sat2, 3rd is Blu-Ray. If this is not on the correct spot the TV will not receive video input from the Blu-Ray,
It depends on what the source is for the TV, as to how the receiver gets the sound for your coach speakers. If the source is what is back in the closet, the sound for the receiver comes from there.
If the source is your Front TV, such as local TV channels or say Netflix, then the sound is transmitted from the TV HDMI2 / ARC connection, through the extender back to the receiver HDMI output as long as the receiver has TV/CD as the source. If this is not working like that then it is possible that something got turned off in the receiver (don't know if it automatically works, or if Foretravel had to set the receiver to work that way) or the front or back extender has gone bad or has lost power.
Maybe we need to talk on the phone?
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 29, 2025, 05:55:33 pm
When you are trying to watch the blue ray, on the key digital matrix switch the top left control should be on the third light. 1st is Sat1, 2nd is Sat2, 3rd is Blu-Ray. If this is not on the correct spot the TV will not receive video input from the Blu-Ray,
It depends on what the source is for the TV, as to how the receiver gets the sound for your coach speakers. If the source is what is back in the closet, the sound for the receiver comes from there.
If the source is your Front TV, such as local TV channels or say Netflix, then the sound is transmitted from the TV HDMI2 / ARC connection, through the extender back to the receiver HDMI output as long as the receiver has TV/CD as the source. If this is not working like that then it is possible that something got turned off in the receiver (don't know if it automatically works, or if Foretravel had to set the receiver to work that way) or the front or back extender has gone bad or has lost power.
Maybe we need to talk on the phone?
You have given me a few more things that I was not aware of. Setting the first Matrix Switch to the 3rd position may fix my BluRay Video problem. Is there a key or chart for the Matrix Switch settings? I am back in Pearland and have to take Willie to Houston tomorrow for a Doctor appt. and I have one on Friday. So I may head back up to Livingston and the coach Friday afternoon. Maybe we can talk then or on Saturday. Thanks,
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 29, 2025, 06:16:52 pm
When you are trying to watch the blue ray, on the key digital matrix switch the top left control should be on the third light. 1st is Sat1, 2nd is Sat2, 3rd is Blu-Ray. If this is not on the correct spot the TV will not receive video input from the Blu-Ray,
It depends on what the source is for the TV, as to how the receiver gets the sound for your coach speakers. If the source is what is back in the closet, the sound for the receiver comes from there.
If the source is your Front TV, such as local TV channels or say Netflix, then the sound is transmitted from the TV HDMI2 / ARC connection, through the extender back to the receiver HDMI output as long as the receiver has TV/CD as the source. If this is not working like that then it is possible that something got turned off in the receiver (don't know if it automatically works, or if Foretravel had to set the receiver to work that way) or the front or back extender has gone bad or has lost power.
Maybe we need to talk on the phone?
You have given me a few more things that I was not aware of. Setting the first Matrix Switch to the 3rd position may fix my BluRay Video problem. Is there a key or chart for the Matrix Switch settings? The back extender does have power and some lights. And I connected the HDMI Cable from the Extender to the HDMI ARC input on the Receiver.
I am back in Pearland now and have to take Willie to Houston tomorrow for a Doctor appt. and I have one on Friday. So I may head back up to Livingston and the coach Friday afternoon. Maybe we can talk then or on Saturday. Thanks,
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on April 30, 2025, 11:16:41 am
And I connected the HDMI Cable from the Extender to the HDMI ARC input on the Receiver.
I think this is where your problem is. The receiver's HDMI output (Out w/ ARC) should go to the extender. The HDMI output #1 from the KD-4x4 should be connected to the receivers HDMI IN1
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on April 30, 2025, 12:16:00 pm
I think this is where your problem is. The receiver's HDMI output (Out w/ ARC) should go to the extender. The HDMI output #1 from the KD-4x4 should be connected to the receivers HDMI IN1
I do have the Extender HDMI cable connected to Receivers HDMI Out w/ARC.
I am not sure about the HDMI cable from the KD-4x4 to the Receiver's HDMI IN1, that cable may be missing. I found this on my print from your directions above and now am anxious to head back up and check it out. From my picture of the HDMI ARC Output of the DTR-30.4 Receiver, I see an open HDMI just to the left and I believe that is IN1.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on April 30, 2025, 05:54:06 pm
Here is how the Matrix Switcher set up
Matrix Switch Key Digital KD-4x4XC Input 1 DirecTV 1 Input 2 Roku (that is what I have now. It was Sat2 (DirecTV receiver) Input 3 Blue-ray Input 4 Output 1 Living TV Output 2 Bedroom TV Output 3 Slide TV Output 4 Patio TV
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on May 04, 2025, 02:14:04 pm
Matrix Switch Key Digital KD-4x4XC Input 1 DirecTV 1 Input 2 Roku (that is what I have now. It was Sat2 (DirecTV receiver) Input 3 Blue-ray Input 4 Output 1 Living TV Output 2 Bedroom TV Output 3 Slide TV Output 4 Patio TV
I am back at the coach. I have made sure all connections are as you related and as the print I have indicates. Also I did run an HDMI cable from Output 1 of the Matrix Swtches to the Receiver Input 1 and I have the Blueray Player connected to Input 3 as the print shows. I can play a Blu-ray Disc and the sound will go to the Receiver speakers throughout the coach, but the video will not go through the HDMI extenders to the TV. I can play the TV and sound comes out the TV speakers but will not operate the Surround Sound coming from the DTR-30.4 Receiver. I have checked and replaced the HDMI Cables that go from the Receiver HDMI ARC Output to the HDMI Extender TX and from the HDMI Extender RX to the HDMI 3 ARC on the TV. I have made sure that the External Device settings for the TV have the Anynet+ (HDMI-CEC) on. and Under the Expert Settings for the Sound, I have the HDMI-eARC mode set to Auto. I also tried it with the HDMI-eARC setting set to OFF.
My Opinion at this point is that the HDMI Extenders are not operating with this new TV. I do not know if the old TV would have worked because I looked at the equipment closet and could see unterminated cables as if some equipment was removed. I figured the PO had some sort of DVD player or something connected to the unterminated cables. So I cannot verify that the HDMI Extenders were working or not with the old TV.
I can order a pair that operate wireless or a pair that use my existing data cable. Your thoughts?
Title: Re: Smart TV to Sound System in IH-45
Post by: nitehawk on May 04, 2025, 03:42:36 pm
Try turning the volume way up. I had a sound bar for my Fire TV and turned out I had it hooked up just fine. Scared the crap out of me when the sound finally came on. I had to turn the sound level up to 24 before I heard anything!!
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on May 04, 2025, 03:54:24 pm
Try turning the volume way up. I had a sound bar for my Fire TV and turned out I had it hooked up just fine. Scared the crap out of me when the sound finally came on. I had to turn the sound level up to 24 before I heard anything!!
. Yeah, I know how that feels and sounds......When I am running my tests, I have the sound level of TV up to 70 on the SS RX. That level will get your attention, and is a bit louder than I would be running it when working. Thanks, Nitehawk.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on May 04, 2025, 05:41:30 pm
In my opinion, if can be hardwire, better than wireless.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on May 04, 2025, 07:19:31 pm
In my opinion, if can be hardwire, better than wireless.
I agree, thank you.
I examined the ethernet cable and it is labeled Cat 6 and appears to be well made. So I am sure I will go with a wired replacement, just need to find a pair that someone is using for a similar application. Most just use them to send from a laptop to a big screen. Our application is bit more demanding. We are sending and receiving data both directions with the ARC function. They run anywhere from $50 to $350 or so a pair.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on May 04, 2025, 09:21:53 pm
So I am sure I will go with a wired replacement, just need to find a pair that someone is using for a similar application.
Were you able to find a part # on the existing one?
Might call Foretravel parts and see what they are using now.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on June 25, 2025, 02:27:59 pm
Herb, have you gotten yours working?
We are on a one week trip. My front TV will work for a while, then go black. Message will pop up saying no connection. Then after a few minutes picture will be back. Then it all starts over again. Since I had a HDMI go bad on the slide TV, I am going to replace these first.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on July 06, 2025, 09:54:51 am
We are on a one week trip. My front TV will work for a while, then go black. Message will pop up saying no connection. Then after a few minutes picture will be back. Then it all starts over again. Since I had a HDMI go bad on the slide TV, I am going to replace these first.
Sorry Turbo, I have been away from Forum dealing with doctors etc. No my new front tv does not connect to the surround sound at all now. I have replaced the HDMI extender with a highly rated new units. The TV says that no HDMI cable is connected even thought all the blinking lights on the old extender and the new extender indicate that a connection is live. I bypassed the switches at top and cabled the Extender transmitter directly to the HDMI ARC output of the surround sound receiver. Considering switching the transmitter to the TV and the RX box to the receiver at the back. I saw that swapping the TX and RX worked for someone on a a help site I checked. To do this I will have to remove the panel behind the Drop down TV above the windshield.
I also changed all the HDMI cables to new "high speed" cables.....no joy.
I will send some more thoughts later today.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on July 07, 2025, 09:11:11 am
We are on a one week trip. My front TV will work for a while, then go black. Message will pop up saying no connection. Then after a few minutes picture will be back. Then it all starts over again. Since I had a HDMI go bad on the slide TV, I am going to replace these first.
Do you have two TVs in the front? I have TV mounted in the ceiling between the Driver and passenger seats, and another smaller TV on a Televator in the desk behind the drivers seat. Since I have owned my coach, we have only used the larger Ceiling TV and its internal speakers. I had connected the original TV to the internet with an Amazon Fire stick. The PO connected with a ROKU, which I never activated although it was giving us a picture and sound through the local speakers in the TV. My new TV Samsung connects directly to the internet, so I do not need to use the Firestick or Roku. I use the Samsung remote to select YouTube TV which gives me local Channels and enough other channels to satisfy our needs. We can connect to almost unlimited stuff as long as we have internet. So I cancelled my Dish Network account and have no need for the two satellite dishes on top of the coach. So I guess I am saying that your TV going black intermittently could be from not getting an input signal to the TV which could be HDMI cable or some glitch in the input signal to the TV. Try different sources for the input. Does your Blu-ray give you the same symptoms as the satellite dishes?
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on July 07, 2025, 09:46:47 pm
I have 1 TV overhead in the front. and one in the slide mounted next to the refrigerator.
I started testing tonight and it is looking like the Transformer Engineering HD-1 Transmitter or the Receiver. I put an email into Brad at FOT to see what they are using now. To troubleshoot I connected a monitor to the HD-1 behind the panel in the front and after some time picture went away. I powered down and back up the HD-1 and picture came back for a while. I went to before the HD-1 Transmitter in the closet and connected my monitor there. Picture never went away.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on July 08, 2025, 04:06:32 pm
Well the extender balm's that I purchased were the wrong ones for sending the audio back to the receiver via arc from the HDMI from the TV. After more research I purchased these that based on what they have stated and read will work.
Amazon.com: ARC HDMI Extender 4K@60Hz 4:4:4 Over Cat5e/6/6a/7 Cable up to... (https://www.amazon.com/ARC-HDMI-Extender-60Hz-4KEX70-ARC-H2/dp/B07HH1212W/ref=sr_1_2_sspa?crid=1KEG27LAN4BNH&dib=eyJ2IjoiMSJ9.dl3EUJiXbK1ke0K-PXzN-Oi-fgeil_BA9xSnJVmaepO0iZ2iwN9E3pisCvg9mlJa.gCKkMtARBzZ2pcbuHKIEglIkvXM-MKpGaqz6TAQAElA&dib_tag=se&keywords=4kex70-arc-h2&qid=1752004613&sprefix=4KEX70-ARC-H2%2Caps%2C161&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1)
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on July 09, 2025, 12:21:17 pm
Well the extender balm's that I purchased were the wrong ones for sending the audio back to the receiver via arc from the HDMI from the TV. After more research I purchased these that based on what they have stated and read will work.
Amazon.com: ARC HDMI Extender 4K@60Hz 4:4:4 Over Cat5e/6/6a/7 Cable up to... (https://www.amazon.com/ARC-HDMI-Extender-60Hz-4KEX70-ARC-H2/dp/B07HH1212W/ref=sr_1_2_sspa?crid=1KEG27LAN4BNH&dib=eyJ2IjoiMSJ9.dl3EUJiXbK1ke0K-PXzN-Oi-fgeil_BA9xSnJVmaepO0iZ2iwN9E3pisCvg9mlJa.gCKkMtARBzZ2pcbuHKIEglIkvXM-MKpGaqz6TAQAElA&dib_tag=se&keywords=4kex70-arc-h2&qid=1752004613&sprefix=4KEX70-ARC-H2%2Caps%2C161&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1)
. That is exactly what I purchased and installed. It did not help my issues. Be interested to see how these units work for you. It will let me know that I have other issues if yours work ok or at all.
Title: Re: Smart TV to Sound System in IH-45
Post by: turbojack on July 11, 2025, 01:59:21 pm
Changed out the HDMI extenders. Powered up and works like a charm. I have my Roku set up in the place of Sat 2. I can view Sat1, Roku, DVD player coming from the back with sound coming from the ceiling surround system. When I go to local channels on the TV, sound comes through the ceiling surround sound. Recevier is getting the sound via the ARC from TV, back to receiver.
I guess the old extenders were going south for a while. When I use to be on local TV the sound would pop on and off. I never got around troubleshooting that problem but that problem seems to be gone now.
Herb, maybe we need to do a phone call to verify your system is wired correctly. PM me for my cell if interested.
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on July 12, 2025, 10:13:16 am
Changed out the HDMI extenders. Powered up and works like a charm. I have my Roku set up in the place of Sat 2. I can view Sat1, Roku, DVD player coming from the back with sound coming from the ceiling surround system. When I go to local channels on the TV, sound comes through the ceiling surround sound. Recevier is getting the sound via the ARC from TV, back to receiver.
I guess the old extenders were going south for a while. When I use to be on local TV the sound would pop on and off. I never got around troubleshooting that problem but that problem seems to be gone now.
Herb, maybe we need to do a phone call to verify your system is wired correctly. PM me for my cell if interested.
Sent you a PM. Thanks
Title: Re: Smart TV to Sound System in IH-45
Post by: Herb Stark on July 14, 2025, 11:25:17 am
I replaced the 12 year old 47 inch Panasonic TV in the front of IH-45 with a new Samsung OLED 55 inch. It fit snug but looks great and plays great. My old eyes enjoy it very much. There was only one HDMI Cable going somewhere from the Dropdown ceiling mount, so we connected it to the HDMI ARC and turned the sound system on back in the back. No JOY. The sound system works very well playing a local FM station. Great sound from speakers all over the coach. So today I decided to track down the way that Foretravel hooked the TV at the Front windshield to the Integra DTR-30.4 Receiver in the closet in the rear of the coach. In the drawing that Foretravel furnished for my build number which is probably for a different location for the Living room TV since it refers to a cabinet below the Living Room TV. I found a panel above the windshield that is removable. Once removed I was able to see what the HDMi cable was connected to. Strapped to a support behind the removable panel was a HDMI Extender Receiver with a Data Cable running somewhere. The Data Cable was labeled "LRTV 63 Data". So I went to the back closet and found the HDMI Extender Transmitter with a short HDMI Cable and the other end of the LRTV 63 Data Cable which was a CAT 5 or 6. The short HDMI cable was not connected. So I assumed it would need to get into the Integra DTR-30.4 which powers the speakers in the coach. I found an HDMI ARC receptacle that was open, so I connected it there. I made sure that power was supplied to the HDMI Extender transmitter. I then went back up front and checked the TV. The Samsung Smart TV now recognized the DTR-30.4 by model number and it became an option for TV Sound which I selected but was disappointed to find that no TV sound came out to the speakers. I checked the manual for the TE HDMI Extender System and it showed a connection from a TV HDMI ARC to an audio surround receiver HDMI ARC.
So it appears that I now have: 1. a connection from Samsung TV ARC to the DTR-30.4 Receiver ARC. 2. I am able to select the DTR-30.4 as an option for Sound output from the Samsung TV 3. The DTR-30.4 has buttons to select several options, AM, FM, others, and one for TV.
However I am not able to get TV Sound out of the receiver even though the FM and AM buttons work. I have not tried the CD Player that is mounted above the receiver, but it probably works also, but NO TV.
Maybe someone here has replaced their TV and can assist with some things to check.
AN UPDATE: I replaced the HDMI Exterders with the same units the Turbjack used. I still did not show a connection to the DTR-30.4 Integra Receiver in the rear closet. I knew that I had checked and or changed some parameters on the individual inputs to the receiver. I reread the manual for the receiver carefully and started checking the settings. I actually used the old TV as a monitor by standing it up on its side in the rear closet. By doing this, I could clearly see the settings for each input. In reading the manual I found that most of the inputs should not be assigned to a specific HDMI input. There are 7 inputs label HDMI 1 through HDMI 7. Since the Blu-ray Player was connected eventually to HDMI 1, I had selected that input in the parameters for BD/DVD input. However the manual shows that no HDMI port should be selected and the HDMI connection should be left blank, stating the if selected, It cannot be used for any other input. So I deleted the selection under BD/DVD for HDMI 1 leaving a series of dots signifying no specific HDMI port. At this point I checked the operation and miraculously I have video from the Blu-ray player going to my TV and I also have sound from my TV going to the receiver and thus to the surround sound speakers. As a bonus, when I turn the TV on, it also turns the DTR-30.4 Integra Receiver on and a menu comes up on the TV. I then press Home on my Samsung TV remote and I have TV with Surround Sound. When I turn off the TV with my Samsung Remote, both the TV and DTR-30.4 go off. Perfect!!
I wish to thank this forum and especially Turbojack for guidance and suggestions. My takeaway is to RTFB and believe it.