20 Most Recent Samsung LE40R73BD 40 in. HD-Ready LCD Television - Page 3 Questions & Answers

probably your cable or sat box malfunctioned. try unplugging the power for 2 minutes and then plugging it back in. my cablebox would do that to me all the time. let me know if this doesn't help. check sound on dvd or other sources to narrow that down.

HelloYour Samsung tV is LCD type. It has no bulb to replace as in DLP projection televisions. there is CCFL [Cold Cathode Flourocent Lamps] are the lighting devices, which are fitted just behind the LCD screen There will be more than 12 numbers of them, accroding to screen size. If these lamps do not light up; that is; if you do not get any backlight with your LCD TV, the backlight inverter board should be troubleshooted. This is the board that supplies high frequency high voltage to these lamps to light up. Check this inverter baord first. Repalcing backlight CCFL lamps is really a skilled work, as they are fitted inside the panel, and to replace them, you have to disassable the panel itself.

Hello, get a replacement stand because it is certain that you cannot put the broken tube back together again. Go to amazon.com or ebay.com for a replacement or go to any electronics accessories store within your vicinity.

Now try again in English???

There is a small part that regulates colour and has to be replaced on the circuit board, colour can b restored within minutes. When done I recommend that u use a power source with a surge guard to avoid such from recurring.

usually you can see the tops of one or more capacitors bulged up when the power supply board has failed. VERY common on Samsungs.

This does not seem to be a power supply issue but rather an issue with the backlight inverter board. When the screen goes black, take a flash light and focus it on the screen from a close distance and several angles. See if you notice a very faint image. Try changing the channels to make it more noticeable. Try it and let me know

http://www.samsung.com/uk/support/detail/supportPrdDetail.do?menu=SP00&prd_ia_cd=101&prd_mdl_cd=LE40R73BDX%2FFID&prd_mdl_name=LE40R73BD&srchword=LE40R73BD
Enjoy!

Hi,
Basically it is problem of LCD Panel (screen) however some times T-Con board replacement fixed the issue (T-Con board is part of lcd panel but some part shop sell it separately). Main board is not related with this kind of problem.
Required T-Con board is available in ShopJimmy.com (click the link to view available boards)
If T-Con board replacement does not solve half screen vertical lines problem then LCD Panel will be replaced and it would cost approx new tv price.
Hope this info will help.
Thanks.

YOU HAVE WEEK CAPACITERS BULGED IN YOUR POWER SUPPLY STOP USING YOU WILL MAKE THINGS WORST

hi howey ja07,
Unfortunately, cracked TFT can't repair.
Replace panel with the one.

Hi,
That problem from PCB T-Con .


Replace it.

http://www.youtube.com/watch?v=ARNVqW6qngE&feature=related hi there, above is the link to a video clip. Please watch it is the same idea in replacing the lamp for your Samsung TV. defective lamp need to be replaced especially when it manifest defects for you to enjoy your same old TV. Please rate and vote, good day

you should have a source/input button on the remote. Press this button and choose the input with the same name as the one you have the DVD player plugged into. Samsung TV's also have a button on the tv for source as well, it looks like a square with an arrow pointing into it.

the backlight may be burning out or the inverter is failing, look for failing capacitors in the inverter circuit.

I found some great videos of the procedure (for different brand and different board, but similar issue) on youtube.
http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related