Question about Akai LCT2660 26 in. HD-Ready LCD Television

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Screen flashes on blue then goes black, sound ok.

Is it the inverter board, ? if it is ,where is the inverter board located.

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Are you still having trouble?Please let me know.Thank You very much!
Tyler

Posted on Oct 07, 2009

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Sound is OK. Why is screen black?


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://electro-medical.blogspot.com/
http://electro-medical.blogspot.com/
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.

Mar 27, 2016 | Toshiba 46L5200U 46 Class 1080p LED HD TV

1 Answer

Samsung smart tv has a black screen that flashes to a real screen for about 1 second then goes back to black. it has sound


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://electro-medical.blogspot.com/
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.

Mar 13, 2016 | Samsung 5500 Series UN32F5500AF 32" LED...

1 Answer

This is an LCD tv . Toshiba 40xv648u .Audio is good screen is dark. was taking longer and longer to come on.


Since the picture died slowly i suspect a capacitor on the powersupply board,if the screen flashes then goes black and sound is ok
could be the inverter board that drives the lamps.

Len..

Feb 28, 2014 | LG Televison & Video

1 Answer

I have a Olevia lt37hvs, When i plug it in the blue(olevia)light comes on then goes off and the screen will be blue for 5-6 second then go black for 1-2 seconds then screen goes blue again and it just...


tried to connect again the supply for main board and disconnect the supply for the inverter board of back light. and turn on the tv, if the indicator stay the inventer board was the cause of voltage drop at the power supply board.

Sep 08, 2012 | Olevia LT37HVS 37 in. LCD HDTV

1 Answer

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

Sanyo model 42848


This could be a faulty back light lamp.It is located right at the back of the screen It is an cold cathode lamp supplied by a high voltage from inverter board .Inverter board has a input voltage of 24 volts inverted into 300 volts AC this lamp lights up the screen...
You need to open the back cover to check the lamp.....

Jun 06, 2012 | Televison & Video

1 Answer

47LG50 screen light goes black after about 45 minutes of being on, sound still ok. Turn the tv off and back on and its fine for another 45 mins to an hour. The on/off light goes from red to blue-ish...


Good day!

That problem is commonly happens when the inverter board failed.

But before you replaced that its better to check this out first.

Just follow this simple and D.I.Y procedure on troubleshooting.

  1. Remove the back cover of your TV.
  2. Look for the Inverter board.
Inverter board looks like this:
nineng_6.jpg

3. Check the input voltage of the inverter board if have 24vdc.Using multimeter (range on DC)
4. If you have 24vdc,check the output voltage of the inverter board it should have 500vdc.
5. If you don't have 500vdc output on the inverter,replace it.
6. If the you have the output voltage on it,the problem could be the busted cold cathode light (C.C.T).Replace it.

I hope this solution will be helpful.Thank you and don't forget to rate my answer.

May 31, 2011 | Televison & Video

1 Answer

While watching it, the screen went black (totally). Sound was still there but no pic. When I tried a different channel to see if it was cable or tv, it shut off. Now the green light will come on and the...


The tv have a long board call a LCD inverter board.This LCD long inverter board,it dead.This long LCD inverter board,help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish long LCD inverter board for the replacement.

Oct 25, 2010 | Akai CFTD2011 20 in. EDTV-Ready LCD...

1 Answer

Screen is black, and then turns blue for a sec when you turn off


Verify that for sure you do not have open winding on the seconday side of the inverter transformers (this is a common failure), also check all the surface mounted fuses on the inverter board.
Power supply filter capacitors look OK, no bulging tops?

May 23, 2009 | Syntax LT30HV 30 in. HD-Ready LCD...

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