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Hi, All newer tv's have a menue that you can change settings to.
Audio and video both have parameters to. On your remote go to menue and look for audio settings and in that list should be surround
Click on/off. Hope that helps.
Now--first--connect the DVR cable box HDMI output to the HDTV HDMI input (use the lowest numbered one e.g. HDMI 1) for this connection. Use a standard (not Monster brand) HDMI cable for this connection. Then turn on the TV, turn on the cable box and switch the TV to the HDMI input. A picture should come on. You may even hear the audio on the TV speakers. If so, that is OK.
Then--connect the component video output of the DVD HT to the TV component 1 input. Use a three wire component video cable with red, blue and green connectors on each end. Connect color to color on both ends. Then turn on the DVD, put a DVD in the player and start it running. Switch the TV to the component input and it should show a pix. The audio will come from the DVD player speakers.
If your DVD player does have an HDMI output, you can use it and just connect as above to the second TV HDMI input.
To get audio from the cable box out of the DVD player speakers, you will need to connect an audio cable from the cable box go the HT amplifier. Use a set of RCA patch cables and go from the analog audio output of the cable box to the rear panel audio inputs of the DVD player. The owners manual for this unit will give directions on using this input. Since your HT unit does not have any other inputs, you will not be able to get Dolby Digital audio.
Hope this gives you food for thought. If so, and you have more questions, just come back in with a follow up.
Good luck. Remember, the owners manuals all have hook up connections diagrams. Sometimes they will help.
I found an audio amp IC and indicated on the top of the chips is CHMC S0723. It should have cross reference can be found in ECG semi-conductor guide or NTE ICs manual. The pin#12 is the Vcc in 12VDC, pin#6 & #7 are audio input L&R.
Other solution is just hook an RCA cord right into its audio out of this set to your receiver and it will works.
I had this problem on my 42" Philips. Just got it yesterday and worked fine on the tv stand. As soon as I mounted the TV to the wall via wall mount system, I had the exact same issue you did. Figured it out today.
The wall mount was putting pressure against the center of the back of the tv (tv set had a slightly rounded back plate, and the mount was a flat plate). As soon as I put spacers (part of the wall mount hardware set) between the wall mount braket and the tv so there was no contact except at the mounting holes, the tv worked fine.
My theory is the pressure pushed the tv back plate against some board components which caused them to overheat (no air flow); or put pressure on internal connectors. I dont know.
If I was reading right there should be an auxillary input in the front if not the back of the stereo. If your TV has matching connectors just run RCA cables from the back of your TV into the AUX. Then your TV might have a menu where you can turn the internal speakers off. I know mine does and mine is very out dated. I hope this helped.
I had the same problem (CD mode) but today all audio is gone.
I opened it up and found no visual problems. There are 3 main boards inside, one where all audio inputs go to. I think that board is bad. Not much help I know. Good luck finding the answer. I'm doing a search on know problems now, If I find anything, I'll post back.