My screen indicates hdmi 720p on the top right corner then the video menu pops up. it goes back and forth making watching tv unbarable. also the volume flashes when it is pressed i have a Hesense 32 inch lhdn32v66aus 2

SEIKI Tv SC501TS has audio but no video, repair - YouTube

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Learn why your screen is blank and you have audio - No image LED TV Repair Review Main Board Problems ...

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It's not getting the signal strong enough

When the picture is too large there are three possible solutions at least.

Starting with the simplest two: There are buttons on the remote controls (cable/satellite and television) that control the picture size. On the cable remote it is usually on the bottom, and it says hd zoom. Press it and it will size the picture down for you. On the television or satellite remote it might say view mode, picture mode, format or aspect.

Now, the more difficult solution if the above doesn't work: The settings might not be right in the cable box/set top box. If the television is a 720p television, make sure the cable box/set top box is set for 720p and not 1080i even though they're the same (yes, yes I know). Also make sure you are not connecting a cable/set top box to the coaxial rf input when you have the capability to connect to a component or hdmi cable. I hope this helps.

1. Connect the PS3 standard composite video connector (yellow RCA plug) to the TV composite input and switch the TV to that input. Leave the HDMI cable connected.
   
2. Make sure the PS3 is off. Turn it on and hold the power button until you get two beeps (at least 5 seconds). The PS3 navigation screen should be shown on the TV. If not, switch the TV back to HDMI; the screen should be displayed at 480i resolution.
   
3. Go to the settings menu. Select Display Settings, then Video Output Settings, then press the X button on your controller.
4. The on-screen instruction should be "Select the type of input on your TV." Select HDMI, then press the '> (solid right triangle) button on your controller.
5. You will be offered the choice of Automatic or Custom settings. Try Automatic first (if there is a problem at the end, start over and pick Custom the second time).
6. Press the X button. You will get a screen asking you to confirm the changes. Press the X button again to confirm.
7. You may get a screen asking for the resolution setting. IMPORTANT: if your TV's maximum resolution is 720p or lower, do not pick a higher resolution. The TV may not display properly or may not display at all (blue screen). Pick the highest resolution your TV can display.
8. Confirm this by selecting "Yes" and pressing the X button.
9. The settings list should now read Connector Type HDMI; Resolution Standard (NTSC); 480p; 720p; 1080p (if applicable). Press the X button to confirm.
10. You may be offered a choice of audio outputs; you can use HDMI or something else, depending on your setup. Confirm the setting and press X one more time.

At this point, the PS3 should send its signal to the HDMI port following restart. If your TV has more than one HDMI input, make sure you select the one connected to the PS3.

I'm guessing that your gaming TV is 720p. (If this is incorrect, give me a reply). What you need to do is connect it to the other TV, in the menu - select Display Settings (or possibly Video Settings), manually set it to 720p, save the settings and turn it off. Now, when you hook it back up to your Game TV, you should get a picture!

Hope this solves it!

Unplug TV set from the outlet, wait 30 seconds, plug it back in, select right input with your remote if you using cable box or Punch the channel that you want to watch if you have cable service connected directly to the TV.

If you are seeing light then the back light is working. Can you get a menu?Do any of the other video inputs work? If no video but has backlight and no men or any on screen display replace main board.

Since it is brand new then should be OK.
Please return it to store and get another TV.

It may be a resolution setting issue...the game may be outputting in a resolution that your tv doesnt support. Try going to your video settings and knocking the resolution back to 720p for your HDMI output....in settings under video, select your ouptut, and uncheck the boxes next to the types above 720p. Also make sure you have latest software update for ps3.

Component video has a max resolution of 720p. in order to use 1080i or p you have to use hdmi or dvi connections. That is why you get the flicker.