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Tv problem troubleshooting

Screen goes read then it rights itself and sometimes we get zigzag lines all over the screen

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  • John Potter
    John Potter Mar 30, 2014

    The screen some goes red. The TV is 9 years old and is attached to a BT Vision box. After a while it rights itself. Is the set on its last legs or could be the BT box

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  • Master
  • 3,320 Answers

It's the TV set.

Posted on Mar 31, 2014

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: samsung tv turning off by itself

I had a similar problem where my 61" Samsung DLP was turning itself off very frequently I had resolved to try replacing the bulb. I called a local TV repair place to see if they had my buld in stock. The guy I spoke to actually told me how to fix my problem! There is a little blue switch behind the bulb access door. The inside of the door has a little piece that presses the switch down. The switch is supposed to work correctly weather the switch is in the up or down position but samsung forgot to take expansion from heat into account. If the switch is held in the upper position by the door and the plastic expands to a certain point, it triggers the set to shut off. This does not occur of the switch is held in the lower position. What you need to do is take the access door off and put it back on by sliding it into position from above. That will hold the switch in the down position, eliminating the problem. My set has not **** itself off ever since.

Posted on Feb 08, 2009

  • 1 Answer

SOURCE: Magnavox 42 LCD 42mf438b/f7 turns on/off by itself

I have exactly the same problem with a Magnavox LCD 42", very similar model 42MF437B/37. I don't have a solution. If you unplug the TV and plug it back it starts working, sometimes for hours, sometimes for less than 5 minutes, before it turns off again. Does anyone have any real solution?

Posted on Aug 01, 2009

AndroidLVR
  • 31 Answers

SOURCE: green lines down length of screen on my samsung 40 inch LE40F8

The reason for the green lines are the resolution. I'm assuming you're TV is set at 1080i, not 720p or 1080p correct? What happens is the "i" stands for interlaced, meaning, your TV displays your images with scan-lines. The "p" stands for progressive, meaning, TV displays picture as a whole. You can not visibly see the scan lines when seeing 1080i, but certain TV programs are not outputting their show to the resolution you're at, which will cause you to have the green line up at the top of your TV. SOME TVs might let you adjust the settings to rid yourself of the scanline, but most consumer TVs will not let you without the maintenance code to protect your unit from over calibrating and braking your television. Hope this helps.

Posted on Mar 20, 2010

welcomejee
  • 10594 Answers

SOURCE: LCD displays 4 white lines and has double vision

Hi,
I saw your tv pictures at above mentioned website link.
It is LCD Panel (screen) problem, call Sony and ask for warranty cover to replace lcd panel.
Thanks.

Posted on Jul 18, 2010

pjhislay1
  • 810 Answers

SOURCE: Lexsor 32" widescreen LCD TV

sounds like av panel needs replacing................
cheers

Posted on Mar 26, 2011

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32LH20RMA problem is half of the screen goes black, gray and white vertical lines while the other half continous to show tv program


Please read or download the info about fail T-CON/LCD panel and see the example of failed T-CON and LCD panel.
You may want to try to reseat the ribbon cables between the LCD panel and the T-CON board first.

http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT


PDF download: http://www.mediafire.com/?zzjygannjty


LCD panel: http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

See FIGURE 4 of the download.

LCD panel: http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
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Jul 18, 2011 | LG 32LG30 32 in. LCD HDTV

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There are verticle lines on my tv. They are about 2 in apart and 1 in wide. It starts with 1 thin line and the several colored lines join it until its an inch wide. It started on right side of tv and now...


These colors lines on the LCD screen panel are not causes by an object or human being by force hitting it?If yes,than the tv is not repairable only can be replaced the LCD screen itself.The screen it 90% important to the tv and it limited in productions,will cost the same as a new tv,if screen panel is replacing.If the colors lines came on to the tv LCD screen panel by itself.Than ur tv have a board call the T-CON decoders board is dead.This board is sitting wright in the middle botton on the LCD screen panel require replacing.Tries websites like Shopjimmy.com,ebay.com to buy a refurbish T-Con decoders board for the replacement.

Dec 07, 2010 | Emerson LC320EM9 32 in. LCD HDTV

1 Answer

My 57" rear-projection Toshiba TV is showing about a 12" wide path of scrambled lines from the left to the right side of the screen at about 1/3 from the bottom of the screen itself. Sometimes the...


It looks like a dynamic focus problem. But I think you'd have to call a shop. It would require a part order, soldering, and likely more test and troubleshooting. It could be guessed that it's a dynamic focus transformer or similar, from looking in the schematic.

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1 Answer

Zigzag lines in picture when first turning on the tv


possoble cold solder connections breaking when unit is cold they expand when hot thus making connection.

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2 Answers

Blue color spread over the pictures


This sounds classic to a thermo problem where a part(s) are becoming thermo sensitive with aga and use. When the set is cold and then warmed up, the defective part(s) is changing characteristics.

Some components became thermo sensitive that are driving the display. Or an embeded component in the display itself became thermo sensitive. It is very possible that the fault is on the board that does the X - Y addressing or on the backplane electronics of the display screen itself.

Using the set with defective components is a bad idea. If the part(s) fail completely and go shorted or opened, other more costly damage can be done.

The service rep for the manufacture of your set is equiped and trained to be able to troubleshoot and service your set.

You will have to take the set in to have it serviced.

Jerry G.

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Sony TV keeps flipping to Memory Stick screen by itself


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1 Answer

Zigzag lines in picture when first turning on the tv


This is probably a short in the TV, most likely a ground problem.,, make a proper ground (earth) for the the TV.
that will Fix your problem.

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2 Answers

Vertical Lines all over then starts to move lines back and forth


you should first check all the cables inside the set to make sure they all are seated properly, check some other sources like a dvd player and see if it does it on a dvd, after that it is probably a defective main board

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1 Answer

Green screen with almost horizontal zigzag lines


Is good that you hit it and it reacts,very likely you have loose conections in different places but for the distorted picture you need to check the horizontal driver transformer and flyback after that is corrected you need to check the complete chassis for loose conections.Take your time.Good luck.

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