No video or audio from HDMI inputs, (DirecTV and Xbox), rca aux input or Component input. Over-the-air HDTV from the Antenna is perfect audio & video

Check the input selector on the TV, if you have audio only then it is a cable problem,
that means that cables are not connected in the right way.

Step 1:

Connect the audio/video input of the component cable into the "A/V" port located on the back of the xbox 360

Step 2:

Match the red, blue and green cables on the other end of the component cable to the corresponding component ports on your HDTV. If your HDTV has more than one set of component inputs, make note of which one you use.

Step 3:

Slide the switch on the component cable to "HDTV."

Step 4:

Turn on your HDTV. Set the video mode to the component port that will be used. HDTVs with multiple component ports will usually be labeled "Component 1," "Component 2" and so on

Step 5:

Turn on the Xbox 360. Go to "My Xbox." Select "System Settings" then "Console Settings" then "Display" and then "HDTV Settings." Choose the display setting (720p, 1080i and 1080p) that is best compatible with your HDTV. If you're not sure, try them all until you find the one that looks best.

Step 6:

Disconnect any previously connected A/V or component cables.

Step 7:

Connect the HDMI AV cable connector to the "HDMI AV" port on the Xbox 360.

Step 8:

Connect the other end to an available HDMI port on your HDTV. If your HDTV has more than one HDMI input, make note of which one you use.

Step 9:

Turn on your HDTV. Set the video mode to the HDMI port that will be used. HDTVs with multiple component ports will usually label them "HDMI 1," "HDMI 2" and so on.

Step 10:

Turn on the Xbox 360. Go to "My Xbox." Select "System Settings" then "Console Settings" then "Display" and then "HDTV Settings." Pick the display setting (720p, 1080i and 1080p) that looks best on your HDTV.

Looking at the specs for your TV, it does not appear to have the jack for earphones.

You will have to connect an audio receiver to your TV and use the reciever's jack.

Connectivity

• HDMI ports qty4
• PC interfaceVGA (HD-15)
• Input/Output connections3 x HDMI (19 pin HDMI Type A) - Rear,
  1 x HDMI (19 pin HDMI Type A) - Side,
  2 x Component video input (RCA phono x 3) - Rear,
  1 x Composite video/audio input (RCA phono x 3) - Side,
  2 x USB (4 pin USB Type A) - Side,
  1 x Ethernet (RJ-45) - Rear,
  2 x Audio line-in (RCA phono x 2) - Rear,
  1 x VGA input (15 pin HD D-Sub (HD-15)) - Rear
• Video interfaceHDMI,
  Component,
  Composite

42PG20 Connections

• Connector Type
  
• 1 x Composite video/audio input ( RCA phono x 3 ) - Rear ,
  
• 1 x S-Video input ( 4 pin mini-DIN ) -
• Rear , 1 x Digital audio output (optical) ( TOSLINK ) - Rear ,
• 1 x Remote control ( Mini-phone 3.5 mm ) - Rear ,
  
• 1 x Serial ( 9 pin D-Sub ) - Rear ,
  
• 2 x Component video input ( RCA phono x 3 ) - Rear ,
  
• 2 x Audio line-in ( RCA phono x 2 ) - Rear ,
  
• 2 x HDMI input ( 19 pin HDMI Type A ) - Rear ,
  
• 1 x VGA input ( 15 pin HD D-Sub (HD-15) ) - Rear ,
  
• 1 x Audio line-in ( Mini-phone stereo 3.5 mm ) - Rear ,
  
• 1 x Composite video/audio input ( RCA phono x 3 ) - Side ,
  
• 1 x HDMI input ( 19 pin HDMI Type A ) - Side

42PG20 Audio System

• Sound Output Mode Stereo
• Surround Mode Yes
• Sound Effects SRS TruSurround XT
• Audio Controls Bass , Treble , Balance , Sound mode
• Speakers Included 2 speakers
• Output Power / Total 20 Watt
• Additional Features Auto volume adjustment
• Speaker(s) 2 x Right/left channel speaker - Built-in - 10 Watt

How do I connect direct tv to denon and then get sound

If the RCA TV has HDMI input connect as follows:

1. Connect an HDMI cable from the Directv box to an HDMI input on the Denon.
2. Connect an HDMI cable from the HDMI out-put on the Denon to the RCA TV
3. Select input the DirecTV is connected to at the Denon, at TV select HDMI input Denon is connected to TV.
4. On front of denon press the input mode button to select auto


If the RCA TV has Component input (Green,Red,Blue) connect as follows:

5. Connect Component Video and Audio cables from the Directv box to a Component Video and Audio input on the Denon (TV, DBS,VCR).
6. Connect a Component Video cable from the Denon to the RCA TV Component Video input.
7. Select input the DirecTV is connected to at the Denon, at TV select component input Denon is connected to TV.
8. On front of denon press the input mode button to select aut


If the RCA TV has Composite input (Yellow) connect as follows:

9. Connect Composite Video and Audio cables from the Directv box to a Composite Video and Audio input on the Denon (TV, DBS,VCR).
10. Connect a Composite Video cable from the Denon to the RCA TV Compositet Video input.
11. Select input the DirecTV is connected to at the Denon, at TV select composite input Denon is connected to TV.
On front of denon press the input mode button to select auto

If the RCA TV has HDMI input connect as follows:

1. Connect an HDMI cable from the Directv box to an HDMI input on the Denon.
2. Connect an HDMI cable from the HDMI out-put on the Denon to the RCA TV
3. Select input the DirecTV is connected to at the Denon, at TV select HDMI input Denon is connected to TV.
4. On front of denon press the input mode button to select auto


If the RCA TV has Component input (Green,Red,Blue) connect as follows:

5. Connect Component Video and Audio cables from the Directv box to a Component Video and Audio input on the Denon (TV, DBS,VCR).
6. Connect a Component Video cable from the Denon to the RCA TV Component Video input.
7. Select input the DirecTV is connected to at the Denon, at TV select component input Denon is connected to TV.
8. On front of denon press the input mode button to select aut


If the RCA TV has Composite input (Yellow) connect as follows:

9. Connect Composite Video and Audio cables from the Directv box to a Composite Video and Audio input on the Denon (TV, DBS,VCR).
10. Connect a Composite Video cable from the Denon to the RCA TV Compositet Video input.
11. Select input the DirecTV is connected to at the Denon, at TV select composite input Denon is connected to TV.
On front of denon press the input mode button to select auto

There are a couple of options you can use.

Are your DVD and cable actually going to the Onkyo first and then to the TV? I am assuming it is, if you listen to the Onkyo when watching a DVD or cable.

The Onkyo receiver you have has 2 hdmi inputs and 1 hdmi output.

Does your Xbox360 have an hdmi output and that is what you want to connect to the Onkyo? Some do and some don't.

If your Xbox has a hdmi output and you are already using the 2 hdmi inputs on the Onkyo, you can not connect the Xbox using the hdmi, you have no more hdmi to connect to, so you must go thru one of the other inputs of the Onkyo.

The hdmi has the video and audio together, the other video options do not. you would need to run seperate audio cables as well.
Your Xbox should have a composite video (yellow RCA jack) output or a component video (1 red, 1 blue, 1 green RCA jack) output.

When you connect the Xbox thru, lets say the composite video of the Onkyo , you will also need to connect the audio from the Xbox to the Onkyo on the same input. It should be right next to the yellow RCA jack or right under it. They are 2 RCA jacks, one red and one white.

You will then need to connect the composite output of the Onkyo to the composite input of the TV.

When connecting like this, you will also need to select the composite input on your TV with your remote for your TV. Your TV should have an input button that lets you go thru all the different inputs to it.

you can also use the component video from the Xbox if it has that. But you must also run the audio to the Onkyo as well to the corresponding audio inputs of the component video input on the Onkyo.

This may sound a little confusing, but remember that the hdmi has the audio and video in one cable, the other video options do not, so you must run additional cables for the audio to the Onkyo from the Xbox.

Also remember whichever video you use from the Xbox to the Onkyo, you must also run that same video from the Onkyo to the TV and then switch the TV over to that input when you want to watch the Xbox on the TV

The Scientific Atlanta box was a cable box and recieved CATV signals. The Direct TV box is satellite only. You might check if it has a built in ATSC tuner for off air digital signals. Direct TV in most locations offers the major networks in HD format.

Run a regular RCA type audio cable from your TV audio out to your Home Theatre audio in. That is what I have done recently with my Samsung LCD and Home Theater. You then have to put your Home Theater on Aux 1 or Aux 2 to get the sound from TV. Ensure your TV's volume is off.
Kurtis