Question about Sharp LC-45G1H Television

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1920 x 1080 signal from HDMI source

I have a LC-45G1H with AVC TU-45GAH. There is no HDMI port in this AVC.
May I use a DVI to HDMI adapter to connect my HDTV set-top box (1920 x 1080 i signal) to this AVC?

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Posted on Jan 07, 2010

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Hi Genaro,

Sounds like an issue with the HDMI HDCP content protection. I do not think it will be possible to connect using a DVI to HDMI cable.

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HDMI and DVI use the same encoding scheme for video purposes- the only difference is HDMI can carry audio signals and therefore have different connectors- so it is not like the lack of a picture signal is because you are using two different cables (HDMI and DVI). In theory the DVI to HDMI adapter should work.
Is there a possibility that the adapter is defective? Any bent or missing pins?
How long are the cables? If they are of poor quality, a digital signal can be lost at 20 feet. Again, in theory.
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Yes, the Panasonic PT-50LC13 has a DVI port. There are DVI to HDMI adapters to handle the conversion. You will need an HDMI F to DVI-D M adapter (like this: ). Alternatively, get an HDMI to DVI-D video cable (both male ends) of the appropriate length. You will need a separate cable for the audio. Make sure that your source has a separate analog audio output available and plug that into the DVI audio input (RCA R/L). If your source has a only digital audio output and the HDMI port, you could use a digital-to-analog audio converter to provide this audio. For example, this would work: .

Please note this will not handle the signal from most computers. They send a different signal then the TV can handle. Copy protected content (DRM) may not be correctly translated by the TV. Most Blu-ray movies require HDCP compliant TVs and monitors.

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Identify why you need an HDMI connection from your computer. Because the 2764 does not have an HDMI port, you will need to obtain some sort of adapter to connect to an HDMI device. There are a number of different ways to achieve that connection.

Purchase an external USB video card with an HDMI output. These devices have a number of benefits, including the ability to display a different image on the HDMI output than that which is being displayed on the screen. One example of these devices is the Sabrent USB-2011 which can display a 1080p HD signal over its HDMI connector. Other devices will also include support for audio and send it along the HDMI wire with the video signal.

Use a DVI-to-HDMI adapter if you have a Lenovo ThinkPad USB Port Replicator with Digital Video. This device takes the computer's existing video card and displays its signal over DVI. DVI-to-HDMI adapters are both affordable and easy to obtain.

Convert the computer's VGA output directly to HDMI. Because VGA is an analog signal and HDMI digital, doing this requires a special piece of hardware such as the StarTech VGA to HDMI converter with audio. Simple VGA to HDMI cables will not work, due to the lack of digital output from the T400's VGA port.

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