Panasonic TH-42PD50U 42 in. Plasma EDTV Logo
Posted on Apr 23, 2009

Sony Viao HDMI to Panasonic Plasma TV HDMI Input handshake

I purchased a new Sony Viao laptop with HDMI output and Blueray player anticipating using it to watch Blueray movies on my Panasonic TV Model TH-50PX500U purchased 3 ½ years ago. According to the owner’s manual, the Panasonic TV HDMI input supports EIA/CEA-861/861B compliant consumer electronic devices.

When using the same HDMI cable that functions fine using the Scientific Atlanta set top cable box and connecting it to the HDMI output on the Sony Viao, there is no picture on the Panasonic TV. Using the VGA output from the Sony Viao works fine on the Panasonic TV.

After telephone technical support with Sony verifying the proper installation of the ATI driver and correct settings, they recommended I contact Panasonic.

Upon contacting Panasonic, I was told that based on the age of the TV, only a cable box HDMI output and not a computer HDMI output will function properly. The Panasonic technician explained that the HDMI input on the TV has different buffer characteristics explaining something about 1 pin with 3 volts, as contrasted with the new Panasonic TV’s which have 1 input buffered and 2 not buffered.

Is there a device I can purchase to convert the HDMI signal from the Sony Viao to the correct signal used by the Panasonic TV that would make the signal the equivalent of the set top box signal?

Thanks for any advice.

-Tom

  • Anonymous May 11, 2010

    Panasonic did not mention an hdmi extender and using the side hdmi input on your tv?

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My TV turns off while watching and message pops "Plasma no signal " . Please tell me what to do . Thank you

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Try all of your HDMI inputs, one may be rated at the correct voltage to be able to display the video. The offical part that Panasonic was giving for this was PDPHDMIKIT, its basically a HDMI extender that regulates the voltage. The part is still available online, try partstore.com or andrews-electronics.

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Some where on the back, bottom or sides of your plasma tv you will find input jacks for the audio and video. You must know what type of inputs you want to use.
Most have have 4 types

HDMI (audio and video signal combined)
Component (red, blue, green RCA jacks for video only)
Composite (yellow RCA jack for video only)
S-video ( larger round black jack with video only)

The Panasonic should have all of those also. I am certain it has HDMI and Component.

Connect the HDMI cable into the output HDMI jack from the Panasonic into the HDMI input jack on the TV.

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You must always be sure to have the proper input selected on the TV to be able to view it.

You can also respond back with more questions if you have any.
I am happy to help.

Dave
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