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HDMI cutting in and out.

I lost 1 HDMI port and the other 2 are cutting in and out. I tried unplugging for a while and reconnecting, but after the set warms up, it starts cutting in and out again. Composite and regular RCA hookup work OK but I need the HDMI. Could it be the Main Board?

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  • Master
  • 8,617 Answers

Some brands are known to have it be the HDMI port itself failing unbfortunately replaceing the main board is easier than repaceing the HDMI input on the board unless you have excellent soldering skills.

Posted on Dec 09, 2012

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Posted on Jan 02, 2017

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SOURCE: My HDMI ports won't work on my Westinghouse tx-42f430s TV

FOUND A SOLUTION! (at least in my case) thanks to some creative Google searching...

Apparently the HDMI ports can get into a state where they are unable to negotiate the input signal properly. The way to "clear" the ports and allow the HDMI signal to be detected is to perform a "reset" on the unit.

Just turn the set off using the power button on the right side of the unit. Then, press and HOLD the power button for at least 10 seconds, then release.

The set should turn on and essentially do a "reboot" where it displays the Westinghouse logo. After that your HDMI ports should be functional again.

It worked for me :-) Best of luck..

Posted on Dec 17, 2007

  • 1 Answer

SOURCE: Westinghouse 1080P 42" LCD TV - HDMI stopped working

Just reset the TV found out how here: http://www.danielcoburn.com/uncategorized/westinghouse-1080p-42-lcd-tv-hdmi-stopped-working-fix/
Hold the power button for 10 seconds.

Posted on Jul 26, 2009

  • 51 Answers

SOURCE: my hdmi port is not working

I have Verizon Fios and there's a known issue with the motorola HD boxes that they have bad hdmi ports, the screen goes green and that's it, nothing I can do about it I just use component cables. You need to be sure it's your tv not the cable box. Try the hdmi on a dvd player or ps3 or whatever else you have first just to be sure it's the tv at fault not the cable box. If you determine it is the tv you need to replace either the main board or the video board depending on your specific tv model. Some have the video inputs on the main boards some have video boards.

Posted on Aug 22, 2009

vinnyq
  • 157 Answers

SOURCE: My Bravia KDL-40S4100 lost all 3 of it's HDMI

There is a problem with the processor. The only way to resolve this issue is to replace the main board. It is called the A board in your TV.

There are two for this model and the correct one will depend on what your serial number is.

Part numbers are as follows:
part # 185709211 for Serial #
1,000,001 - 1,350,000
1,700,001 - 1,750,000
1,800,001 - 1,804,270
1,804,271 - 1,818,372
1,818,373 - 1,830,000
list price: $504.87 core charge: $680.00

part # 185709231 for all other serial numbers
list price: $505.87 core charge: $600.00

Posted on Nov 09, 2009

Testimonial: "Thanks, Now I wonder who all shares the same problem and if Sony is willing to do something about their defective products..."

tgr2000667
  • 30 Answers

SOURCE: I cannot get the Input

input is shared with component input--one or the other --must choose in set up menu

Posted on Jul 13, 2010

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I have Panasonic th42 plasma.i m playing xbox360 for a year on hdmi port 1 .but 1 day when I turn on my TV than my Xbox the screen is showing black than change the port to 2 than port to 3 same problem not...


It sounds like you did some good testing by taking your xbox to a friend's home and trying it with his TV and HDMI input. You can try a reset on your Panasonic TV and see if that restores the HDMI input functions. Note this will erase your programmed TV channels so you'd need to re-enter those.

  1. Unplug the TV for at least 15 minutes
  2. Plug it back in and you'll be prompted to go through the initial setup just like when the TV was new.
If after that you still have no HDMI function on any of the inputs, that would indicate the set needs some service by a technician.

Good luck.

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I am unable to get a picture on hdmi when i connect my ps3, but am able to get sound when i use ps3 controller. any ideas ?


Steps
  1. Step 1 Check for an HDMI port Check the back of your television for an HDMI port and refer to your owner's manual for your television's resolution. A resolution of 1080p offers the highest quality.
  2. Most PS3 systems support 1.3 HDMI, but older systems may need a software update from the 1.1 or 1.2 version.
  3. Step 2 Disconnect cables Disconnect all the cables and adapters from the back of your PS3, and then unplug your TV to reduce the risk of shock as you work.
  4. Step 3 Connect HDMI cable Connect the HDMI cable. Reconnect the power cables on both the TV and the PS3 system.
  5. Step 4 Hold power button Hold down the power button until the PS3 beeps and continue holding it for an additional five seconds until the system makes a second beep.
  6. The Playstation 3 should detect the high definition cable and automatically adjust the settings to give you the best picture and sound possible.
  7. Step 5 Test the connection Test the connection. If the HDMI cable isn't working, turn everything off and reconnect the original cables to manually change the settings.
  8. Step 6 Adjust the settings Turn the system back on, select Settings, Display Settings, Video Output Settings, and then HDMI. Repeat the process for your Audio Settings. You can now experience your games with the highest video and audio quality available.

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My Vizio VU37L HDMI ports not working. AV ports work. Heavy lightning storm last night, TV was off when I went to bed, on when I woke up.


If you send the board to us we may be able to fix it.

What you're looking for is having to replace the small SMD IC that the tracks from the HDMI ports lead to.

Sometimes that is all it takes, other times it needs more and just today I've had a case where we just couldn't do anything as the damage seem to have spread to the large processor.

(it wasn't on a Vizio board, it was on a Sanyo, but the concept is the same)

www.coppelltvrepair.com

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Ur tv some how causes HDMI 1 and 2 port hubs link together so changes back and fourth 1 or 2 HDMI hubs will not a difference.Ur tv have 4 HDMI hub ports wright?Tries not to used HDMI hub ports as like HDMI ports like 1,2,3,4 to as in sequences.Tries used like 1 and 4,2 and 4,3 and 1 as skips sequences might work for ur tv.Tries to hook up the PS3 system as the old format hook up same hook as PS2 format like used the PS station old RCA AV cable hook up.Then that should not causes conflict at all because now tv have two difference kind of format hook up.

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JVC HDMI Port Fix

Turn the TV on, and enter the Service Menu. Select 2 for Self Check. Then turn the TV off, and after the fan turns off, unplug the power cord. Reconnect the power cord, turn the TV on, and the HDMI port is re-enabled.


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