Question about Panasonic TH-50PHD7UY 50 in. HD-Ready Plasma Television
I'm installing my father-in-law's TV. We've checked that the hook up is correct, gotten the right adapters, but still have no picture at all on the TV - not even white noise. Just blankness and a buzzing sound. The TV is a Panasonic Plasma flat screen, model #TH-37PH9UK. We have the cable box hooked directly into the TV using the red and white audio cables, and an S video cable (we've also tried to use a Coax, and the red, white and yellow all together - still the same problem.) Panasonic customer support is now closed. Please help!!! Thanks, Brenna
hi yvonne not sure if you sorted this but using this lead should get you sorted
the phono blugs ae used for audio and bnc plugs on the back of your panny are for the video
Posted on Oct 28, 2009
SOURCE: Panasonic TH-46PZ85U Plasma TV
TV shuts off unless all the input (phono and HDMI) cables are disconnected. The
symptom may be intermittent.
There is an abnormal AC voltage entering the TV from one of the input cables or AC
Follow the Testing procedure to determine if there is a problem external to the product.
If the TV no longer shuts off when all input cables are disconnected, then one of the
input cables is introducing abnormal voltages into the TV. Panasonic Plasma TV sets
have 3 wire AC plugs.
As a result, abnormal voltages introduced into this TV will cause the TV to shut off for
If the abnormal input voltage is borderline (marginal), the TV shut off symptom may be
intermittent. However the cause may still be detectable with a voltmeter.
Release the protect mode - the TV has to be unplugged to reset this protection circuit.
Threats from the HDMI input:
Excessive voltage from an HDMI cable connected product will activate the Plasma TV’s
protection circuitry. Placing an isolating / buffering connector (sometimes called a voltage
conditioner) between the TV and the HDMI input cable often solves the problem.
Unplug all the HDMI inputs from the TV. Turn on the TV. Plug in the HDMI inputs one at a
time. The cable that causes the TV to enter the protection state is connected to the product
that has the excessive voltage (and signal). Avoid connecting this product until an isolating
connector is found.
Posted on Jan 27, 2010
SOURCE: My Panasonic Viera 50" 1080i
The Panasonic doesn't detect the presence of the signal on the antenna input so it just skips it. shut down the player and turn the cable box on before attempting to switch sources.
But why aren't you using the Composite RCA connection on the cable box ? Not only you would get a much better image but the tv would detect that change in the AV source and should switch by itself. If it doesn't then the control processor is faulty and the entire mainboard will will have to be replaced
Posted on Nov 05, 2010
If the red, white and yellow wires you are referring to are coming from another video source like a DVD player or cable box, attach them to the video 1 inputs red, white and yellow connectors; right below component in.
Please rate this answer if I was able to help.
Posted on Mar 07, 2011
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