Play audio from PS3 using home theater system

Hey guys, new here, hopefully this is in the right spot.

Equipment

• Emerson 40" LCD HDTV
• Sony PS3
• Sony DAV-tz140 Home theater system (5.1)

Goal
Plug the ps3 and the home theater system into the tv using HDMI cables, then be able to play sound through the home theater while playing video from the ps3.


What I've done

• Plugged PS3 into HDMI 1 on TV
• Plugged home theater into HDMI 2 on TV
• Switched the Home Theater system to DVD/CD to access settings menu
• In the home theater settings menu I changed 'HDMI Audio' from 'off' to 'all'
• In the TV menu I changed TV Speakers from 'On' to 'Ext. Amp'
• In the PS3 menu I changed the audio output to a HDMI cable

What Happens
When I switch the TV to HDMI 2 (the home theater) I get audio from the speaker system by performing a 'sound check' for all the speakers, therefore I assume if I had inserted a CD or DVD it would also work just fine.

When I switch the TV to HDMI 1 (PS3) I get video, but no audio. In the TV menu if I change the TV speakers to 'on' instead of 'ext. amp' then it works just fine playing through the TV's speakers.

Additionally the TV and Home Theater system appear to have sync'd up. When I change the volume on the TV it changes on the Home Theater accordingly and vice-versa. This happens when the TV is on HDMI 1 (PS3) and HDMI 2 (Home Theater System).

Lastly I went into the settings menu on the TV again and under the tab 'features' I found something called fun-link(HDMI CEC) which I believe is what helps the Home theater volume to sync up with the TV volume. So I checked the device list and it is as follows:
HDMI 1 .......... PS3
HDMI 2 .......... DVD System
HDMI 2 .......... DVD System




I greatly appreciate any help you can offer and thanks for reading.

I should also note, just for the record, that when I'm on the ps3 I get audio from the TV if I switch the TV speakers option to 'On', but then get just silence when I switch it to 'Ext. Amp'.

Thanks for the quick response! I really appreciate it.
The TV is an Emerson brand, however I'll post up some pics of the main ports (not included is the usb and third HDMI port which are on the side of the tv).
Perhaps I'll have to go with the RCA ports for Audio and have Dolby do it's magic.








I thought you might also get a kick out of this. I was pressing the "Audio In" button on the HTIB remote and the box kept displaying "Invalid". So I turn to the instructions to see when the "Audio In" button actually works and this is what I found:





That last picture made me wanna return it and get a different system lol.
Would be kind of a PITA though after running the speakers all over my living room.
Edited by megamax42 - 11/24/12 at 11:38am