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Polaroid LCD 32 sound no backlight

When I turn on, I got the letters of Polaroid and for less than a second we can see light, than image goes off and everything is black, the sound is on.....checking i can see thareĀ“s some reflection but no backlight at all, can you advise what to do???

Thanks bro.

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  • Anonymous Nov 28, 2008

    I am having the exact same problem on a 15" polaroid lcd!

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5 Suggested Answers

zjut
  • 106 Answers

SOURCE: lcd tv backlight prob

You need to replace the inverter board if you can find the spare part. Otherwise you need to replace the whole lcd panel.

Posted on Jan 01, 2008

  • 1 Answer

SOURCE: Sceptre X30SV LCD display goes black with sound... Inverter? and other parts...

I too have the same problem...Searched and waited long time for parts. I have replaced everything and the thing still flashes and goes blank but has sound. Not worth anymore stress. My neighbor is an electrical engineer who I used to think can fix anything. He too is baffled. My fix suggestion... Getting a new LCD (not a Sceptre) tonight...with an extended warranty...Sceptre (and their tech's) no help if you don't have a warranty. I learned my lesson!

Posted on Jul 09, 2008

  • 1 Answer

SOURCE: at power up tv displays Acer logo then goes to black

will not turn off power with out unplugin it

Posted on Mar 01, 2009

  • 6 Answers

SOURCE: Screen goes black after couple seconds on my Polaroid 42" LCD

I had a TLX-4240B 42" Polaroid LCD TV and the screen would go black after about 10 minutes. There was still sound. I removed the two covers exposing the circuit boards behind the TV. I powered up the TV and waited for the screen to go black (I was going to start trying to pinpoint where the issue was with my trusting meter) then noticed a red light would come on when the screen would go black. there were 4 mini switches right above the red light. I switched the one that said burn and the TV has been working great since. good luck and let me know!

Posted on Aug 05, 2009

  • 2 Answers

SOURCE: HDTV backlight turn off after 10-15 minutes, with some t-shooting

I have read everything I can find on the net about this problem for Polaroid TLX 04240b TVs (most, like mine, bought from Wal-Mart on Black Friday after Thanksgiving). I thought I was on a hot lead when I changed a 220uF 450v capacitor, but I still had the same problem. I saw a short post from somewhere else on this Fixya web site (sometimes I can find it again and sometimes I have trouble locating it) that said someone flipped a tiny switch on their circuit board and the problem was gone. I did the same thing and my set has been working fine. They had said their set was on for over 8 hours two days in a row when they posted. The other night my daughter left our set on over night for 20 hours and the picture still was working great. If you look through the top of the set when the picture is on you can see some white light at several locations, when the screen goes blank the white lights go out and a red LED light can be seen. If you take off the plastic cover on the back (3 screws) and then take off the metal cover (3 screws) this red LED light is on the upper circuit board in the lower left corner. Just a little to the right of the LED light is a small switch block that has 4 tiny white switches. I turned my set off and took the bottom switch (#4 and had the letters BURN by it) to the right "ON" position, turned the set back on and, so far so good. PLEASE NOTE!!! I know almost nothing about how transistor circuits work. I have no idea what the switches do or what long term effect this might have on the set. The set was only good as a paper weight before so even if this only fixes the set for a short time it was at least worth a try for me. Does anyone know what those switches are supposed to be for????

Posted on Aug 13, 2009

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1 Answer

Polaroid 42 LCD TV - Backlights turns off after powering on


The back light LED array is faulty. May be it would be difficult to get the LED Array Because its comes withe the LED panel. Try to consult Polaroid service center.
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

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Can the lamp be replaced for a Polaroid TLX03210B


You likely have a LCD set there which may likely use a back light inside to light the image, get the room as dark as you can and with a flashlight illuminate the screen from a angle, with set on if you can see the faint image on the screen of the program you have a Backlight issue'

1. Voltage not there or not being switched on for backlight.

2. Actual back light bad.

If the image can be seen with a flashlight one of the above is the issue and your "picture will appear very faintly" also suggests this.

Dec 18, 2012 | Polaroid Televison & Video

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After i power my polaroid tv on the screen shows for about 3 seconds then goes black what causes that


Its a Lcd so if it stays on turn off all the lights (we want a dark room) and with flashlight look carefully at the screen to see if you see a faint image of a picture there or not.

Dec 06, 2012 | Polaroid TDA-03211C 32 in. LCD HDTV

1 Answer

Screen goes black after a few seconds


Sounds like a defective backlight or inverter board

May 20, 2012 | Polaroid TDA-03211C 32 in. LCD HDTV

1 Answer

When I turn my Polaroid tv on I get the dish signal and see a picture a few seconds, then goes off. I still have sound.


This problems is the long LCD inverter board is dead.This long LCD inverter board help the LCD screen panel to have a backlight to prduced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a long LCD inverter board for the replacement.

Feb 02, 2011 | Polaroid TLA-01511C 15 in. LCD Television

1 Answer

Powers on TV works for 30 - 45 minutes then the screen turns black audio still runs.


take a strong light and place it next to the screen when the problem returns. Do you see a faint image on the screen? If so, then your backlight has failed. Since it happens after that long a time, it is probably a problem with the inverter board and or power supply for the backlight. Bad lamps usually go off after a few seconds. The problem will appear sooner as time goes on.

May 05, 2010 | Polaroid TDA-03211C 32 in. LCD HDTV

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No picture


Ur LCD inverter backlight board is dead.Replaced this LCD inverter backlight board will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter baklight board for the replacement.It a long board in shape.

Mar 18, 2010 | Polaroid TDA-03211C 32 in. LCD HDTV

1 Answer

Back light for TDA-03211C TV not working?


it is an east fix but not a backlight issue, it is
one or 2 bad capacitors in the power supply
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Sep 20, 2009 | Polaroid TDA-03211C 32 in. LCD HDTV

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