Polaroid TLA-04011C 40 in. LCD TV - Page 7 - Answered Questions & Fixed issues

This is a down-stream video problem the data address registry circuits need to be serviced. This could happen from physical impact on the top of the tv or a failure in the video path/ streaming data. In some cases the LCD panel needs replacing if the chips on the address circuits cant be removed and replaced. If you have someone who's technically savvy I can show them wht to test inside the tv.

Get back too me when you can....

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U have backlight video board problem,dead.Must changed.

I have the same TV and I just replaced the Capacitors. It came with 2 10000UF 10V caps and I put in 2 1000UF 35Volt caps from radio shack. Its like brand new. There is even a video on how to change them on You Tube.

Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
You can download the service manual here: http://www.polaroidsupport.com/polaroid/en_us-sm.html
Please post back what you find.

Purple stripe of "LCD panel Death". In most cases when there is a color strip across or down the screen, means the lcd panel it's self is gone down. In this case, cheaper to buy new flat panel tv. In some of thses models you could have a back lite out, not likely, as when the lites oare out you don't have color on that side.

bad capacitors blown in the power supply the can like devices will be puffed up on the tops ewplace thme and your good to go

if you replaced the supply board then there is issues with the decoder board as you would need to chec kthat and see if its not the issue. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

If your sure the power supply is the problem, there is really no catch-all instruction to fix it. You'll have to have someone look at it in person.

Factoring in labor, it will likely be cheaper to replace the power supply than to try to fix it.

blown caps in powe supply they will be domed from venting

It sounds like a bad inverter board or power supply board. Inverter boards tend to fail due to loose solder connections near the coils. Most power supply board failures are due to failed capacitors. The easier way of fixing this is by board replacement. I wouldn't recommend trying to repair this yourself unless you are very technically inclined.
Search online for Polaroid TLA01911c inverter board power supply and you will likely find suppliers who will sell directly to you.
The cost might be prohibitive and you might want to consider investing that cash in a new tv. Just my 2 cents.

May need a LCD TV Inverter board??

My LG LCD HD TV was doing the same thing. I would turn it on and within about 10 minutes the screen would go black.

After much research and troubleshooting I ended up having to send it out for servicing.

Before you do that, try these steps

1. Is your TV plugged in to a power strip, splitter, UPS or other power sharing device? If so, plug it directly in to a wall outlet. If the TV is getting low power it can cause issues
2. Does your TV have other video sources plugged in to it? (Example, Digital Cable, DVD Player,XBox 360) If so, try a different source and see if the problem still happens. If the problem does away, it could be the source. If the problem still happens then its still a problem :-)

Hope this helps!

To make sure the remote is still working, point the remote to the TV sensor, press couple of times and notice the Red LED is response or not. If the LED blinking, the remote works fine. The suspection now is the main board which is control all the inputs. You can try to get TV back to factory reset, it might help.

If you replaced the metal box located on the backside of unit and nothing changed. Send it back for a refund because your problem is most likely the video control board located top center of panel. If you replace that and problem remains its the panel.

LCD TV INVERTER MAY NEED REPLACING?

You will need to contact the manufacturer. In some cases there are TECH codes that can access areas you can not. Hope this helps.

http://www.polaroidsupport.com/polaroid/docs/TLA-04011C_TLXB-4011_TLXB-4241_ServiceManual_20070613.pdf

Here is the service manual with schmatics!

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

The most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

The most likely the TV has a power supply related problem or it maybe just a blown fuse inside the TV.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by some chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

This sounds like a diffuser problem. Basically the LCD Panel is defective.

32" LCD TV use about 8 horizontally mounted flourescent bulbs. They use a plastic material that diffuses (spreads) the light from each bulb evenly on the screen. If this Diffusion Material becomes wrinkled it will leave a grey cloudy look on the screen.

It is possible that the LCD Panel Glass is defective buy honestly I would guess the diffuser.

This isn't cheaply repairable and it is better to replace the TV unless you are experinced with Electronics repair. There may be a possibility to pull this material out and replace it with something readily available from Home Depot but I have not tried this before. It is possible to pull this from another LCD TV.