Question about Panasonic TH-42PA25U 42 in. HDTV Plasma Television

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Cannot make a thing show on screen, no menu, no anything.

I accidenetly hit a button and cannot see the best at 75 years of age, the more I tried to re-connect, the worse it got until finally, the cable box nor tv will do anything, can you help? Screen is all snowy.

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With the cable box turned on, take the actual remote for the tv and press the imput button, you may have to keep pushing it until you find the right input.
Let me know if this helps. I can assist further. lone99star

Posted on Jan 10, 2009

  • BRUCE HERRMANN
    BRUCE HERRMANN Jan 16, 2016

    To lone99star: I don't have a cable box to plug into. I have wireless, but I have a cable line that plugs into back of t.v.

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I have the samsung LN52A550. When I turn the tv on a blue screen appears. I tried changing the source with the menu button but does not display anything. The TV is about 2 years old. The sound works. When...


Try this
Method one- with set on, hold down the exit button on the remote for 10 seconds. It will bring up the warning it will reset to the defaults it had when removed from the box and powered up initially. in the warning box it will show the cancel button highlighted initially. press the left arrow to select the reset option. You may end up doing this blind, so you may need to try it a couple times and the only indication of where you are is just a slight flash from part of the screen.
Once that left arrow has been pressed once, the reset option choice changes to "Ok" or "reset", press "enter" The set should
do it's thing to reset and then shutdown.,

Method 2
it should get you into the hotel settings, but you can reset to factory defaults from there, changing any other settings may limit access to the normal settings.
Shut the set off.

The while holding the mute, menu and info buttons, trun the set on while holding them down. If the functions portion of the board is working, it should bring up hotel options menu.

Feb 07, 2012 | Samsung LN52A550 LCD TV

1 Answer

Showing only white screen


Sounds like you went into your TVs service menu and turned on Aging mode. Try pressing a button located on the TV (remote will not work), failling that, you might have to wait it out.

If you didn't come across this menu, if your still in warranty, take it to best buys geek squad and have them look at it.

Jun 15, 2011 | Dynex 32 in. LCD Flat-Panel HDTV

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I got a universal remote for my sylvania flat screen tv. I was testing the "mode" on the remote and then the next thing I know my tv begins flashing colors red blue green white and I tried to...


I think you accidentally turned on some kinda of test pattern. Try pressing the Input button on the TV itself or the menu button. Sorry that is the best I can do.

Apr 27, 2011 | Flat Panel Televisions

1 Answer

LG 50" the pitcher is off the screen each side by


Ok, first make sure you or someone in family didn't hit the "HD Zoom" on your cable remote or whatever kind of remote you have. On ours - Cable- if you hit it once it is in "Normal" picture which on ours has black around edges on a non Hd channel. Then if you hit it again it Zooms once makes pix very large and if you hit button a third time brings it into a wide screen Zoom that fills the Tv screen. If we are viewing HD channels I put it on Normal which will fill the screen and give you the best HD pix. If we are viewing a NON HD channel, then normal will have black on sides, so I hit the Zoom a couple times to fill in the screen. My brother in law had this problem and couldn't figure out why his Sports channel Scores were always half cut off the screen! it was zoomed in too much for that channel. His sports channel was in HD so needed to be on normal instead of zoomed in.
if it is not the Cable remote then this is a second possible cause:

The other thing that happened to me was - we hardly ever use our original TV remote that came with the TV. but one day our picture looked weird and the cable remote didn't adjust it. One of us had hit the "P SIZE" button on the TV remote. this changes your pix from - 4:3 ratio to 16:9 ratio and vice versa. I put clicked that button and on the TV it shows whether it is at 4:3 or 16:9. For newer wide screen TVs you want that set at 16:9 ratio.

All cable company remotes probably are a bit different so check with your company ... to find out where the zoom control is on their remote.

Feb 27, 2011 | LG Flat Panel Televisions

1 Answer

Montior goes black i turn off the monitor and turn it back on i can do about 2 things and screen goes black again repeat this as many times as i want. Gateway FHX2300 monitor


My monitor has been switching connections on me randomly. Hit the menu button. The one to the left of the power butter when facing the screen. Hit the left arrow twice then hit the menu button again. This will open up the screen where you can choose one of three inputs. I'm going to assume that it is on the incorrect input so use the arrow keys highlight what input you are using and the hit menu button again and your screen should return to normal. Mine only does this randomly when it goes into screen saver, hibernate or sleep. I don't know how to permanently get it to stop doing it though.

Aug 23, 2010 | Gateway FHX2300 LCD TV

1 Answer

Tv appears to be stuck in auto-detect mode


All I can suggest is press down and hold your menu button on the remote and roll around in circles.Also try it with the menu button on the TV.It definitely sounds like it is being pushed down enough to be stuck.If that does not work please write back and in the meantime I will research it a little further.Bought in March huh?90 day waranty too I bet?How long has this been going on?If it does not work,I am also providing a link to Samsung to contact them.You will need probably model number and serial number.If you have the receipt,registered it,or have a credit statement to show when you bought it,and you are really persistent,they will usually do something about it.Samsung is supposed to be one of the best TV's too.I am surprised by this issue.Good luck!
http://www.samsung.com/us/info/contactus.html

Jul 29, 2010 | Samsung LN32C450 32 in TV

1 Answer

Haier 42 inch tv says no signal, not available


Your son, or daught hit some button, happend to me too. But i dont remember wat i did. Just try to unplug the tv and plug it bck in

Jul 21, 2009 | Haier HL19T 19 in. LCD TV

2 Answers

15 DAY OLD TV


Make sure you are hitting the right menu button. Samsung thinks they are dummy proofing their tvs. You cant get to anything they do not think is pertinent at the time. Make sure you are hitting the write button on the remote. Try to hit menu on the tv and see if that works.

Feb 04, 2008 | Flat Panel Televisions

6 Answers

Hitachi 50V500


Turn off your set. ( wait for the light and the fan to shut down) push and hold the Input button on the panel, power it on with the power button on the tv, as soon as you see the service menu appear, let go of the input button. Scroll down to : LCD adjust, toggle blue button to the right, another screen will appear. Adjust the squares on the screen until the ghosts are gone. hit Exit twice::Ghosts are Busted!

Aug 02, 2006 | Hitachi 50V500 50 in. HD-Ready LCD...

31 Answers

TV just flashes different colors


You have entered a diagnostic colour test. With the TV powered on, hold the 'Menu' & 'Enter' together, then press the power button. Problem resolved

Jun 25, 2006 | ViewSonic N2750w 27 in. HD-Ready LCD...

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