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Philips lcd tv : Loose picture at any time , may be 20 seconds or 5 hrs. Sound stays on. I have changed main board and small board (T-Con ?). Still have same problem.

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6ya6ya
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Posted on Jan 02, 2017

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  • 191 Answers

SOURCE: sound no picture, which component is tcon board? where all audio/video/cable/hdmi plug in to?

for bn94-00963b go and change your backlight inverter

Posted on Oct 05, 2008

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  • 718 Answers

SOURCE: how hard it is to replace by yourself main board Samsung LN-T4065

You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.

The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.

Posted on Mar 30, 2009

  • 187 Answers

SOURCE: 47" Philips LCD TV will not stay on and show a picture.

Your mainboard needs to be replaced.

You can get one on ebay and replace it or get someone who can do that for you.

if you still have guarantee, it is covered, if not you will need to buy it.

Posted on May 27, 2009

stergiou88
  • 66 Answers

SOURCE: TV loses picture about 2 seconds after turning on

check the oscillator

Posted on Oct 24, 2009

freetek
  • 5568 Answers

SOURCE: Philips lcd tv 42pfl5432d/37 no picture

If you feel you have isolated the problem board, you might check here for a replacement:
Jimmy's Parts

Posted on Nov 22, 2009

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1 Answer

What's my next step in diagnosing my Vizio LCD TV picture issue?


Hi Tim,
If all the boards you replaced were good and working, the only thing remains is the panel if the backlights are on. Please see that the LVDS cable is carrying voltage to the Tcon board.
Good luck.

May 10, 2016 | Vizio E701i-A3

1 Answer

Has sound. Why no picture?


The Tcon which you have replaced it with does it have the identical number printed on it.

Feb 16, 2016 | Philips Televison & Video

1 Answer

What causes picture to freeze?


the t-con board memory, it can also be the main av board as some have a pause screen feature that can sometimes be accessed from the remote, but some remotes dont have the button. but the memory failing is the cause. so its either the memory in the t-con board or the memory on the main av board. to find out what one it is you will need to remove the t-con board lead and plug back in a second later if the screen works its the t-con board if it stays frozen its the main avi board.

Aug 09, 2017 | Sony KDFE60A20 60" LCD HDTV

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I have a Dynex 32 LCD that I can only see the top half of the picture, the bottom half/40% looks like rainbow lines. What are the possible problems and how do I fix it.


Unfortunately what you have is a fried screen. Toss it at the city dump and get a new TV. Wallmart has 36 and 45 inch TV's for under 300 dollars
Good luck

Nov 29, 2014 | Dynex DX-LCD32-09 LCD TV

1 Answer

I have a vizio e320va that when turned on the backlight flickers repeatedly with picture in and out then starts blinking with vertical lines then the screen goes black and the power stays on, This is all...


The tv is having a problems with the board called T-Con board it is dying and the problems.That why the tv is not sustancening the tv pictures for those coded pictures pixels by the T-Con board to stay on to the tv LCD screen panel.This tv problems only causes by the tv T-Con board it is dying only if the tv problems came on to the tv by itself only.If these problems causes by u or an object by outer forces by hitting to the tv LCD screen panel itself.Now the tv LCD screen panel itself it is dying and the causes.Than the tv it is not repairable,tv now only can it to do a replacement of the tv whole LCD screen panel itself only.Not practical because the tv LCD screen panel are 90% important to the tv and the cost of the tv.If u replacing the tv LCD screen panel itself will cost the same as a new tv.The tv is under a year old,why don't u just call Vizio corp. and take ur tv warrenty repair.

Sep 26, 2011 | Vizio E320VA 32 in. LCD HDTV

1 Answer

I have a 52" Philips


There is a surface mounted fuse on the T-CON board which is fed either 5vdc or 12vdc (depend on the LCD panel) by switched transistor on the main board. You need to find out if there is voltage on that fuse. Post back what you find.
I hope that $20 board is good since it seems to be so cheap.


T-CON/LCDPANEL troubleshooting: http://www.mediafire.com/?zzjygannjtyLCDpanel: http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

Basic LCD monitor and TVtroubleshooting 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 Monitorspictures: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.comParts:www.interliquidparts.com

Sep 10, 2011 | Philips 52PFL7422D/37 TV

1 Answer

I have a 15 inch Advent LCD TV in my kitchen. I turned it on today and have no picture. When I switch stations I get a picture for a minute then it is replaced with vertical lines or a blank screen with...


U have vertical lines for a few second.That mean u tv have a dead board call the T-CON decoders is board.This T-CON decoders board sit at the bottom wright in the middle of the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON decoders board for the replacement.

Dec 11, 2010 | Advent LC-20H15A 20 in. EDTV-Ready LCD TV

2 Answers

My LCD tv model LN46A650A1FXZA picture turns green after about being on for 5 minutes. Then is gets fuzzy and green


I have the same issue. TV is ~ 2 yrs old. Ruled-out cable-box & HDMI cables (green present in menu mode with no cables attached).

Screen turns mostly green, with a crappy picture. After a few days, a normal picture just appeared. Today I powered-on, the green screen stuff came up, then a minute later a good picture for about 20 minutes, back to green-stuff for 10 seconds, then good picture.

Did chavez_debi get her issue resolved?

Aug 05, 2010 | Samsung LN46A650 46 in. LCD HDTV

1 Answer

No Picture, No Sound While Watching


Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.



LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:

Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem. Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective inverter. Symptom: Blue Screen but no picture
Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Scree. Symptom: Power light stays on but no display and sound
Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board. Symptom: No Power or Power indicate light does not lits
Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board). Symptom: Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.


Hope it may help you;

Regards;
VOTIT

Jan 29, 2009 | RCA L37WD250 37 in. LCD HDTV

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