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POLAROID P40LCD12 SCREEN AT BOTTOM COMES ON BLUE FADES THEN GOES GREEN ABOUT 5 INCHES LOST ON BOTTOM TV WORKS OK BUT THE SCREENS STARTS BLUE ABOUT 5 INCHES FROM BOTTOM THAT FADES AND TOP HALF PIC OK BUT 4/5 INCHES FROM BOTTOM TO MIDDLE REMAINS GREENISH

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  • JULIE
    JULIE May 05, 2017

    NOT BACKLITES CHANGED PSU SO NOT THAT GOING CHANGE AVBOARD AND INVERTER BOARD TODAY FAILING THEM CAN ONLY BE BAD PANEL WILL UPDATE AS I THINK TCON MUST BE IN AV BOARD AS THAT WHERE CABLE LEADS FROM TOP OF SET

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on May 02, 2017

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Posted on Jan 02, 2017

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Polaroid LCD tv - model TLX-04244b . Flashes the blue polaroid screen then goes black ,I hear a buzz coming from the inverter board. I have replaced both inverter boards and the same problems exisis .


I just changed out the invertor boards and mine was fixed. I had the same problem. Im not a TV repair man but replace the board thats buzzing and it will work again.

Jun 23, 2012 | Polaroid 4226TLMB 42 in. LCD TV

1 Answer

Lg flatron w1943tb color fades in and out to a blue green


Follow the following solutions, this should fix up your trouble
1. Turn yourmonitor on. It should be on for at least 20 minutes before you continue.
2.Press the"Auto/Select" button on the front of your computer's monitor. Thescreen will be wavy while the adjustment happens. When the screen stops beingwavy, the faded colors should no longer be visible.
Follow steps 1 and 2 if you do not have a disk for the monitor.

Nov 24, 2011 | LG Computers & Internet

1 Answer

Bush lcd tv has sound but no picture when switch on tv screen is blue then goes black and you can hear the proggramme that is on


acoustic solutions lcd tv when i switch it on the screen flashes blue, green then red no picture??? it was working ok last night any ideas?

Jan 23, 2010 | Polaroid FLM-2632 Television

1 Answer

Full Color fading to blue then screen turns off. Repairable?


Here is what you need to do.

1.) You need to remove the entire plastic piece below the front of the screen. You most likely will find 3 screws on either side in back that you have to remove.

2.) The grill will not come out easy, pull from one side and then when it starts to come loose from the other side(there are several plastic pegs that hold it in.) Then from the bottom pull out( most of these sets have square plastic tabs at the top that tuck in.)

3.) With the grill removed locate the inspection plate behind it (it usually has 6 screws.) You will have to tilt the grill to the left and on its side as several cables are connected to it--they are held in place with trash bag like ties that you can release to get some room.

4.) With the inspection plate removed you will see a fairly small (about 3 inch square) BLACK PLASTIC BLOCK WITH SIX CONTROLS-usually they are marked with whiteout so someone can tell if they have been adjusted.

5.) You need to look very close at the block with a flashlight----usually the top three controls are FOCUS--don't touch those.
The lower three are usually marked Screen and if you look very close you will see b, g, r(blue green red)

6.)Usually the blue will be on the bottom left--it does vary

7.) Once you locate the BLUE screen control have the set on and turn it down--if the set is shutting down you may have only a few seconds to try to turn it down---usually to the left with the Blue Screen control.

8.) Best way to do this if the set is on is on a video input with nothing connected--you turn the blue down until the set stays on and then very slowly turn it up until you see a slightly blue screen with or without diagonal trace lines----if you get it to turn on this way turn the blue screen back down slowly until the blue screen and trace lines just disappear.

Let me know if you get it to work--Like I said if it is shutting down you may have to slowly turn the blue screen down a few times to get it to stay on.

I do this here for free and if this helps you at all give me a vote here--it costs you nothing.

Regards, SD TECH

Sep 17, 2009 | Sony KP-65WS500 65" Rear Projection...

1 Answer

I have a Polaroid flat screen TV 32 inch lcd W Red Light Plz HELP


blown cap in the power supply it will be domed on the top where it vented

Sep 16, 2009 | Televison & Video

2 Answers

Laptop screen fading in streaks


this thing happened in my laptop also i got green screen fully
then when i hit it behind the screen it was gone but comes many times then again i would hit
later on the screen was completly lost then had to replace the screen
yous is a starting period so go to a nearby computer service and fix the screen

May 27, 2009 | Compaq Presario M2000 Notebook

2 Answers

Screen fades to blue.


The Blue SCREEN setting is too high. These adjustments are located inside the TV behind the front panel. There are two screws behind covers and then a wooden panel to remove to access the adjustments. The leftmost set are for BLUE, the middle are GREEN, and the right are RED. The top row are FOCUS and the bottom are SCREEN. Focus will focus/unfocus the tube and Screen will adjust the power of that tube (there are 3 tubes, one for each color). If Screen is adjusted too high, horizontal lines will appear (my TV had red lines, but I played around with the knobs and saw that it could happen on any of the colors). Additionally, if SCREEN is set even higher than that, the tube could go so high that it turns the whole screen that color (in your case, blue). If this happens the TV will shut down, probably due to either overheating or overvolting. To fix this issue, turn the appropriate SCREEN dial down until the lines go away. In your case, you want to turn the lower left dial down. Don't turn it too far down, if you turn it more than necessary the TV can give you an AKB error (noted by the STANDBY light flashing a sequence of 5 blinks).

Apr 02, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Screen Goes Green TV goes to stand by blinking 8 times


try adjusting your color tuners located inside tv behind speakers.

Nov 25, 2008 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Sony Trinitron K29 inch CRT TV screen shows green shade!


i have the same problem with my sony trinton tv 36 inch if you know how to fix this please email me on amir.dhawan@gmail.com

Dec 30, 2007 | LG Flatron 295LM 22" LCD Monitor

3 Answers

Picture then fades to blue.


Please post me on this as well. My Sony just turned 4 yrs this Jan and just last week it started having the same problem. -Thanks!

Mar 02, 2007 | Sony KP-65WS500 65" Rear Projection...

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