20 Most Recent Samsung LE40R73BD 40 in. HD-Ready LCD Television - Page 9 Questions & Answers

Power supply board is dead.Replaced the power supply board will solved this problems.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Yes, it can be layed down. Just be sure it is cusiond well and does not slide around. Sliding could scratch the screen.

Most of the time this problem is caused by the power supply in the set. Capacitors on the circuit board wear out. Usually the ones rated at 10 or 16 volts. You can see a physical bulge of the defective components in most cases. The way to repair this is to either replace the bad parts or the circuit board itself. If you take this to a repair shop the cost should be less than half the cost of a replacement tv or 125-295 u.s. dollars. If you have test equipment and solder/desoldering equipment you can repair it for 20 dollars or less. The only way to be sure that this is the problem is to have someone disassemble the set and check it. But this has been only a very educated guess. Good luck, Russmann.

1. Do what you did, enter to service mode, and reset to factory default.
2. Use the component cable (green, blue, red, white, red) connect your set top box to the TV’s component input.

hi,

the function board might have stuck on the source botton. try press n hold on the source botton and see if it is back to normal.

You may have burned out one or more cold cathode fluorescent lamps "CCFL" and that is why the screen brightness varies. Each side L and R usually contains 2 for a total of 4 CCFLs If one burns out you will still have one lighting up the screen however since there is 2 on one side and only 1 lighting on the other side this may be the problem and you may need to seek a replacement CCFL or send your screen to the company for repair.

Your power supply needs repaired. You have some bad capacitors on it. I published a tutorial in my Tips & Tricks which can help you identify and replace these parts. Have a look if you want to try to fix this TV yourself. Best wishes, I hope this was helpful.

You have a problem in the power supply module maybe bad filters youll have to take the back off and they should be very apparent

Hello Fixya customer,

Thank you for your question.

There are several possibilities here including the signal source, a fault in the video processing, or panel display drivers.

This can be narrowed down further for your model. Please supply the full model number of your TV.

Thank you for using Fixya, and I look forward to your response.

Hello Fixya customer,

Thank you for your question.

There are several possibilities here, including the power supply, back light inverter, and signal source.

Have you tried both the remote and manual button?
What sources are you using and how are they connected to the TV?

To narrow down the possibilities for your specific model, please send me the model number.

Thank you for using Fixya, and I look forward to your response.

Hello Fixya,

Although it would be helpful to have the model number, many turn-on issues are related to a fault in the main power supply. Please supply the model number so that I may give you product specific information.

Thank you for using Fixya.

YOUR POWER SUPPLY IS DEFECTIVE

Ur LCD inverter board is dead.This LCD inverter board help the LCD screen to have the backlight to have light to the LCD screen and get a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement to get ur LCD backlight back to get a picture.This board is a long board in shape.

Check ur power sources with other electronic devices?If yes,than ur tv power board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Power supply board is dead,have defictive capacitors. Replaced the power supply board will solved this problems.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Try this: Turn it off, disconnect everything from the set (speakers, DVR, etc.). Unplug it from the wall, push the on/off button and hold it in for a least sixty seconds. Hook it all back up and it may have reset. No guarantees but it has worked for me.

You need to resolder the video IC processor they are one smd device