I was watching movie with my PS3, on HDMI. All of a sudden the screen went blank like it the tv was off, so i turn it on and of again nothing; after it showed the name of the tv hannspree the screen goes off s it was off. yesterday i plug my freeview box which always automatic comes then i coould hear sounds of channel but no image still. Please I am really desperate as it is a gift from my girl friend and she moved out in another country
If the picture shows a picture briefly upon power up then goes off after a few seconds, you have a back light fault. It could have a problem in the 24vdc circuit, failing back light inverter board, or a blown CCFL lamp.
just like 2 seconds. how can i know which one it is exactly???
first off you will need a multimeter. Do you have any basic electronic knowledge? The first thing you should do to verify that it is a back light fault is dim the lights in the room. Turn on the set and shine a bright flashlight on the screen. If you see a faint picture, you have a backlight fault. If you do not have any basic electronics knowledge, I would recommend you get a professional diagnosis. The inverter circuitry produces voltages as high as 1,000 volts. Not safe to mess with if you do not know what you are doing
I actually have basic knowledge. i open it up and i found some electrolytic capacitor has blown on the power supply. Send me your email as the pictures are too large, so you see
i sent you the pictures, now you can see the blow capacitor. I am trying to upload an video of the tv, still uploading though.
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SOURCE: was watching tv all of sudden screen turned black, with audio...
i was watcing tv afeter a while i realized there is no picture but we have sound
SOURCE: Low volume on LG HDTV
I encountered the same thing using the HDMI interface on my new TWC cable box (Motorola DCX-3200). After a little bit of research, I finally fixed it by changing the digital audio mode in the cable box using this procedure:
1. Be sure the TV is on and connected to the cable box.
2. Using the cable box remote turn power OFF.
3. Immediately press the MENU key on the remote. The USER SETTINGS menu should appear on the TV screen.
4. Select the ADDITIONAL HDMI SETTINGS >>> menu item.
5. The ADDITIONAL HDMI SETTINGS menu will appear.
6. Scroll to the AUDIO OUTPUT item and select this.
7. Change the setting from AUTO to L-PCM.
8. Return to the main page
9. Using the remote, cycle power OFF.
10. When the cable box is turned on again, you should be good to go.
I realize these instructions are specific to the DCX-3200, but there may be a similar setup option available in your cable box as well.
The problem here is that the cable box is by default configured to use Dolby Digital audio, which requires an additional 10dB of headroom to deal with the boosted LFE channel. If the cable operator hasn't taken pains to set the system up correctly (and most haven't, apparently), the digital audio level sent on the HDMI interface will be approximately 11dB down from normal analog line levels on the HDTV channels. Changing to straight linear PCM sets the TV receiver audio level on the HDTV channels to match the levels on the non-HD channels.
The only problem with this fix is that if you intend to feed a Home Theater receiver that uses Dolby Digital processing with the cable box output you will lose the Dolby encoding feature and be forced into straight 2-channel stereo. For a simple installation like mine where I'm just feeding the TV, this fix works fine. If you have a more complex setup that takes advantage of Dolby Digital features (when it's available in program material), you may have to live with the problem.
For a technical reference on why this happens, see http://www.megahz.com/specimages/Dolby/LM100%20Cable%20App%20Note%2011-05.pdf
Hope this is useful.
SOURCE: Sound stays on, but no picture- goes black and stays that way.
This unit should still be under warranty and should be taken in for warranty service. Any attempt to access the interior will void the warranty. It is important that a complete description of the problem like you entered here be taken along when you bring the set in for service. This will insure that the servicer be able to reproduce the problem and resolve it.
From your description (and as a servicer), I would be looking for a component that is heat sensitive. These types of problems are fairly easy to locate and resolve.
Please take this in for warranty service and update this when you find out the details.
Thanks,
Dan
SOURCE: I was watching ch5 yesterday about 3pm when I
it might need a firmware upgrade, but you would have to contact grundig to see if there is one available
SOURCE: no sound through ps3 hdmi
I have sound on video 2, and when on a static channel but not on the usual channel 3 which is TV. Just stoppen working one day and cant figure it out... Please help!
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