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Tv problem inverted image overlay at the top of the screen on a mitsubishi CK-3526R CRT television invert image

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Hi and welcome to FixYa,

Based on your description of the fault on a conventional CRT TV , initial suspect would be a capacitor in the vertical circuitry. There would be a number of capacitors within the vertical area, the probable faulty one would be the biggest of the bunch. It would be relatively close to the vertical IC that is mounted on a heatsink. Incidentally, the technical name of your describe fault is "vertical foldover".

Just a start, do postback how things turned up or should you need additional information. Good luck and Thank you for using FixYa.

Posted on Nov 29, 2008

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Posted on Jan 02, 2017

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Can a tv inverter board cause tv to not display


inverter board may be used to power backlight for the lcd display. If it is similar to laptop lcd displays in functionality .
http://www.ehow.com/how_7501465_check-tv-inverter-board.html

Apr 17, 2015 | Coby 40 TFTV4028 LCD TV

2 Answers

Screen blank but sound ok


This problems the two long circuit boards called the inverter board is dead.These two long inverter boards give ur tv a screen light called a backlight that where ur tv getting it light for the tv images.Take ur tv a parts and replaced these two long inverter boards.U will get ur tv picture back.Tries websites like Shopjimmy.com,Ebay.com to buy those two long refurbish inverter boards for the replacement.

Aug 28, 2013 | Sanyo 42 in. LCD TV

1 Answer

First of all, sorry for the mix up on model the model #. I was viewing a problem regarding LG LCD TVs and found your link. My problem is with an LG 42LGX LCD HDTV. It has worked fine without any issues...


Hi,

welcome to fixya and thank you choosing my service..

OK,that is the most and common problem of all LCD TV...

Usually dim and totally have no back-light is cause of bad inverter board.One of the inverter board is shorted that cause dim light and crackling sounds..

This are the sample images of inverter board.
1_22_2012_1_29_43_am.jpg

to make sure that the problem is on the inverter board kindly try to disconnect/unplug it from your TV and power ON then observe if the crackling sounds remain or not..If the crackling sounds gone replaced the inverter board..Also I need to how many inverter board you have? if 2 or more disconnect it one by one to determine if where is the specific faulty inverter board..

Example:
I disconnect #1 inverter still have crackling sounds..next disconnect #2 inverter and reconnect the #1 inverter until you found the faulty one..Note when you doing this make it sure you power off the TV before you unplug or disconnect inverter board because its high voltage..

I need the picture your TV screen..just send it to chesterpendilton@yahoo.com

Regards.
Chester

Jan 20, 2012 | LG 42LC2D 42 in. LCD HDTV

2 Answers

I have a 32" AOC Envision L32w761 LCD hdtv with no


There are only two things that can cause this problem -inverter and T-con. Since you have already replaced the inverter, it can be nothing other than the T-CON or LCD controller. Replacing the same should resolve the problem. On a side note the inverter/T-Con problem can be isolated easily. The purpose of the inverter is only to light up the backlight of the panel. So when it fails you will still have a faint picture that can be seen if you flash a flashlight on the screen. If you would like me to find you the replacement T-con let me know the part number and I will get you the link to the part.

Sep 07, 2011 | Envision L32W761 32 in. LCD TV

1 Answer

The green light comes on but the screen wont light up, meaning the tv wont turn on


hi,
You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.

You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .
ok

Jun 09, 2011 | iSymphony LC24IFH7PB LCD TV

1 Answer

No images only the sound


hi,
You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.

You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .
ok

Jun 09, 2011 | Sanyo 42K30E 42 in. TV

1 Answer

Sanyo DP42848 Screen turns on for a couple of seconds then turns black... Audio works fine. Help!! might be the inverter,I have the back off the tv off but can't see the inverter can you tell me where it...


Take a picture of the back of the tv panel removed and I'll direct you to the inverter - first though grab a flashlight and shin on the screen and if you can see a dark image of whatever you are watching - yes you more than likely need an inverter board. it should be a board that is probably covered with a metal shield that is just about the length of tv from top to bottom. has multiple plugs in it on the side of the tv that is closet to the outer edge of the tv....you can get one off the net...

thanks,
michael

Feb 05, 2011 | Sanyo DP42849 42 in. HDTV

1 Answer

I have a mitsubishi 1080p and i hear the voices but no picture, how can i repair it?


Tv turn on now,ur tv have a flashes of a picture only a few sec. than dies and have sound left only?Yes,than ur tv have 1 or 2 long boards that call the LCD inverter boards are dead.These 1 or 2 long LCD inverter boards help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 1 or 2 long LCD inverter boards for the replacement.

Jan 03, 2011 | Mitsubishi Televison & Video

1 Answer

Tv has died


When the TV is on, if you look at the screen and can see dark images, then you will need to replace both the inverters. The inverters drive/power the back light inside the LCD to show the images. You may have to try and different channels and or inputs to truly see if you can see dark images while the TV is on. If you are hearing audio from a channel or an input then you should be able to see the dark images if just the inverters are bad.
If the screen is dead black without any dark images, then typically your LCD screen/module is bad.
If the TV powers up (power supply is good), you have audio and the remote will work with the TV (the main board is good), the only parts left is the inverters or the LCD screen/module.
I can get you LG part numbers if you need them.

May 21, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

No picture, just audio


Hi 
I am happy to help, we need to check the backlight inverter.
  1. Turn tv on and get to a point that you have audio.
  2. Take a flashlight and shine it on the screen.
  3. Look very closely at the screen for a very dark video image.
If you see an image you have a bad inverter, you should be able to replace it yourself. I can walk you through in chat. Let me know your findings. Lone99star 
 

Jan 20, 2009 | Philips 50PF9956 50 in. HD-Ready Plasma...

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