Question about Panasonic TH-42PX75U 42 in. Plasma Television

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HDMI connections not working! My Panasonic TH-42PX75U has been working with HDMI cable connections just fine. Recently, not sure if this has anything to do with it or not, but we had some big thunder storms and lost power, as well as my power has been going out frequently due to a bad circuit in our electrical panel which will be getting fixed this week. Anyways, all of a sudden, my TV would not work. I called our cable provider and they came out. Everything with the cable box was fine, but they said my TV is not working with HDMI connections. We hooked it up using AV1 and everything is fine. For some reason my TV just stopped working with the HDMI connection. Can this be fixed?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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Grubhead
  • 5113 Answers

SOURCE: Thunder storm came thru...my th-50pz80u HDMI ports

I think you would be better having the set to repair shop. It might be not just those ports that has been affected. Modern devices are full of static sensitive parts and lighting is a bit more powerfull than mere static. It could also have comprimised safety features, to prevent fire; for instance. I would take it to a Pansonic service center to be fixed to be on the safe side.

Posted on Aug 11, 2009

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tvservice306
  • 458 Answers

SOURCE: Panasonic TH-46PZ85U Plasma TV

Symptom:
TV shuts off unless all the input (phono and HDMI) cables are disconnected. The
symptom may be intermittent.
Cause:
There is an abnormal AC voltage entering the TV from one of the input cables or AC
outlet.
Remedy:
Follow the Testing procedure to determine if there is a problem external to the product.

Concept
Constant symptom
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
protection.
Intermittent symptom
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.
Protection Proof:
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.
Testing -
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

  • 1 Answer

SOURCE: panasonic th-50pz80 10 flashing blinking red lights

The way to solve the problem with the TH-50PZ80U blinking light problem is to not buy Panasonic Products. I have had my TV about 21 months and it has started with the blinking light problem, just out of warranty. Panasonic is aware of this problem and refuses to do recall or fix the tv unless you are within the warranty or have bought the extended warranty. Legally they are within their rights, but I am also within my rights to air my complaint and inform others of this below par product. Who wants a TV that they have to unplug for a while and pug it in again for it to work. I want to push the power button and it come's on. I will never purchase another PANASONIC PRODUCT.

Posted on Oct 25, 2010

  • 5124 Answers

SOURCE: How do I connect my

If you have a set top box (blu-ray, dvd, cable) with HDMI Out, then you need a pair of HDMI cables. Connect one from the HDMI Out of the set top box to the HDMI In of the sound bar. Then connect the HDMI Out of the sound bar to the HDMI In of the TV.

If you only want to use the sound bar as an external speaker system for the TV, then you should get a digital audio cable (fiber optic cable). Connect this to the Digital Audio Out on the TV (below HDMI ports) and to the Digital Audio In of the sound bar.

I hope this helps. You can find the manual of the TV here: http://www2.panasonic.com/consumer-electronics/support/Televisions/Plasma-TVs/model.TH-42PX75U . The TV also has analog (RCA) audio out jacks labeled Prog Out on the bottom left of the connection panel; the sound bar however doesn't have RCA audio in jacks.

Cindy Wells
(since there are no HDMI out jacks on the TV, there is no other way to connect the sound bar.)

Posted on Dec 26, 2010

  • 1 Answer

SOURCE: Panasonic Viera Link stop working

Hey, you're not the only one to have this problem. Please see also
http://www.fixya.com/support/t5668469-viera_link_stopped_working_stating

Hope someone can help us all!

Posted on Jan 25, 2011

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try connecting using a HDMI cable and after connecting,restart your pc so the windows sets the resolution to optical.

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If your computer has an HDMI socket, all you need is an HDMI cable. If not you need a VGA cable (the blue cable that usually connects a computer to it's monitor. One end goes into the socket on your TV marked VGA or PC. the other end goes into the monitor output on your computer. if you have a laptop, there will be a vga socket (usually blue inlay in the socket) on the side or back. you will then need to set up the second screen in Control panel, display settings. If using the VGA cable, you will need to run an audio cable from the speaker/headphone socket of your computer to your tv (there will be a 3.5mm jack near the VGA socket) or to your audio receiver.
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My television is two and a half years old, and therefore outside of the warranty period. All of my HDMI inputs have stopped working, but the other video and audio inputs work fine. I have tried...


  1. Try using a new HDMI cable, unless you have verified that your current HDMI cable works on another television.
  2. If this does not fix your problem, I would recommend taking the television to a TV Repair Shop. It is possible that the HDMI inputs have worn out, or the input control board may be at fault.

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If you have a set top box (blu-ray, dvd, cable) with HDMI Out, then you need a pair of HDMI cables. Connect one from the HDMI Out of the set top box to the HDMI In of the sound bar. Then connect the HDMI Out of the sound bar to the HDMI In of the TV.

If you only want to use the sound bar as an external speaker system for the TV, then you should get a digital audio cable (fiber optic cable). Connect this to the Digital Audio Out on the TV (below HDMI ports) and to the Digital Audio In of the sound bar.

I hope this helps. You can find the manual of the TV here: http://www2.panasonic.com/consumer-electronics/support/Televisions/Plasma-TVs/model.TH-42PX75U . The TV also has analog (RCA) audio out jacks labeled Prog Out on the bottom left of the connection panel; the sound bar however doesn't have RCA audio in jacks.

Cindy Wells
(since there are no HDMI out jacks on the TV, there is no other way to connect the sound bar.)

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Panasonic TH-42PX75U Blue Screen


This could be a reception problem of the cable transmission or the cable box if used. Are you using cable or SAT box. Tv goes to blue screen if signal is weak automatically.

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HDMI inputs are not working


As crcelect suggests you can run the TV on RCA. You should also be able to use coax directly from your cable box. If you don't have cable you can use an rf converter to connect coax.
I have exactly the same problem with my Panasonic TH-42PX75U. I've been told that I may need to run a setup on my cable box to fix the problem. If I find a solution I'll provide details in a future post.

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Green vertical line down the screen!


Hello,

Most likely the failure of the Screen.

If you purchased the product new, and have the receipt Panasonic will repair it FOC from what I understand, at least 3 years, your TV is no where near that old yet.

If you bought it, but don't have the receipt.....

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