Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

[2011srg]

hi there i have a polaroid 42" TLX-04244B flat screen it turns on for a split sec and then goes black i hear a buzzing sound for a couple secs right before the screen goes black the power light stays blue so its gettin power, and if i hold a light up to it I can see picture, what is the problem plz help me fix this so i can have a tv again thanks

[tctv]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

Have you received any info to actually fix this problem. I have the same TV with the same exact problem, seems like alot of us do.
Thanks..

[awyatt2]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

have you looked at the service manual, or checked voltage going to the backlight? one voltage missing is all it takes to stop it. if you post a picture of the boaeds we might be able to tell you more. there are more than one voltage coming off the power supply.somewhere you are loosing backlights, buzzing sound may be xformer on inverter board.example on voltage, if you remove the main wire from the starter on your car, do you expect it to crank? everything else will work.

[kevinm34232]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

Is the backlight inverter part of the power supply board on your model?

[budm]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

Any good clear pictures of the boards?

[tctv]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

looks like the power supply board feeds a master and slave inverter board. If both inverter boards are connected I get the initial LOGO and backlight and buzz like others with this problem. If I disconnect the slave I get the same results with no buzz. Im thinking the slave board may be bad. I'll try to post pic's

[tctv]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

The power supply looks like it feeds a master and a slave invertor board

[budm]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

As you can see, there are more than one version of this model, some use power supply/inverter combo board, some use power supply and master/slave inverter board.
http://www.shopjimmy.com/catalogsear...oid+TLX-04244B

[ptepe]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

The problem I found with this LCD tv is they installed CCFL lamps without soldering them. They just snap in and over time they start to arch. That's the buzzing sound you are hearing. The arching causes the inverter to shut down. I took the time to disassemble mine and carefully lifted each bulb out of their sockets and cleaned them. There are 18 bulbs in all. Be careful because these bulbs are extremely fragile. TV is back on and working.

[Vear01]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

Polaroid 42” LCD TV TLX-04244B , error codes: Flashing red light on Power/ backlight inverter board, 860-AZ0-IP0S250-P1H back sticker is 38-899-AZO-IPOS-PA2H on board LX-04244B TV-- 860-AZ0-IP0S250-P1H error codes

Power/ inverter board has red light that is flashing what error is it indicating

What are the error codes?
I know this an old thread but basically same issue.
TV turns on the screen flashes off, flashlight shows image, sound works, power light stays on, no obvious bad caps, red light flashes on PSU/inverter board. I suspect failed inverter, Although I have not check the CFL bulbs or the contact points. If Power/inverter board does need to be replaced and exact copy is unavailable--what do each part of mpn mean (11 vs 38)- (860 vs 899)-( AZO vs 24B vs ABO)- IPOS250- (PA2H vs PCH vs 2AH vs PAH vs T1H vs PH vs 2CH vs CH vs H)
1. what does the flashing red light on PSU/inverter board mean?
2. what do the different part numbers mean? What are the differences?

[dskall]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

Need good clear straight on pictures of back of tv with cover off and each board.

[Austin's Electronics]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

I have a polaroid 50" tv that lights up the logo for a split second then goes black but i take a flashlight and there is still a picture there.

[budm]

Re: Polaroid TLX-04244B Backlight turn on and says Polaroid then backlight goes off

I have a polaroid 50" tv that lights up the logo for a split second then goes black but i take a flashlight and there is still a picture there.

You need to start a new thread and put down the make and model of the TV on the header, then provide good clear pictures of the whole backside of the TV showing all the boards.
History of the TV?
Any Voltage measurement has been made, what are they?
The more details you provide the better help you will get, it is not easy doing long distant troubleshooting without having the set in from to f us to look at.