20 Most Recent Sony Bravia KDL-40V4100 40 in. LCD HDTV - Page 3 Questions & Answers

Picture tube problem.

turn cc on receiver

The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

if you are using an hd cable box it might be just that. what happens is if the cable company is doing work around your area or some one on your block adds another cable line to there house you end up losing signal for your box. now if you pull the power plugg and let it reboot that could either fix the problem temporarly or not at all. you might need an amplifier hooked up to your cable lines or a new cable box all together. contact your cable provider and ask for some one to test your signal quality. i am also assuming that your not getting the same problem when your watching a dvd. i hope this helps you

Question edited for clarity. Full 'make model (what it is)'. Question moved from Computers to Sony Bravia Television. Sony says is it the same television, just with a larger screen https://www.google.com/search?q=32ex650+vs+40ex650 You could ask Jimmy which is where your parts come from https://www.shopjimmy.com/

KDL-40HX75A / 40EX650 / 32HX75A / 32EX650 / 32EX550 ...

https://www.sony.com > support > res > manuals PDF You can switch between the i-Manual screen and the TV screen. This feature allows you to refer to the instructions in the i-Manual while using your BRAVIA TV.

Unplug the TV for a while and hopefully, that should reset the circuity. If you're using the original remote control, check for the display button and press it. I would also suggest doing a factory reset if your TV has that feature and if the TV allows you to do it after unplugging it.

The front and back pieces are like a clam shell and are compression fit with tabs into one another. You need to use something like a guitar pick or spudger to separate the pieces. Dont use metal objects due to damage that will happen to the plastic .

Do you get voltage with the main board unhooked?

what plug not told./PC is dead?no it is not a PC it is a television posted to wrong forumnow corrected.is TV set to sleep mode, RTM read the manual on TVare the clicker remote batteries fresh>?

netflix is a 100% internet web site , streaming site. thus the net in flix. what did you mean by hooked?\ do you have internet at home at all? do other things in home work to the internet, like PC or cell phones. what I can not under stand is (different room) this phase implies some rooms do work (netflex) and wifi gets weak if my move any TV farther from the home router and will fail past 25 feet or more. wifi is super weak through walls for sure brick, or 2 walls. if home is small one wifi access point is all you need if huge home more. distance matter, TV to router. no TV model # told. (tells me wifi spec) if you said my TV works in room 1 but not room 2, wifi;. it be super more easy to answer.. is this true? if true , get a tech to upgrade your wifi. or go wired, Ethernet.(a better home upgrade)

Hello !! what do you mean by you replaced the video card ? mainboard or t-con ? , we need more information

They are usually M6 or M8. You can get them from Home Depot or Sainsbury Homebase.. These are listed as the correct ones. https://www.ebay.com/itm/4-STAND-FIXING-SCREWS-FOR-SONY-KDL-40U3000-KDL-40V3000-KDL-40D3000-KDL40W3000-TV-/322578615461 and here as well, the same type https://www.ebay.co.uk/itm/272144950454?mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338722076&customid=&toolid=10050 ..

Sounds like a bad main board, or more specific the EEPROM is bad on the main

Check power supply caps

You can try but I don't think that will help, sounds like power supply issues, open the back and look for bulged caps

HI IN THIS CASE YOU LED TV CHANG AUDIO FORMATE PLEASE GO TO TUNING SECTION THEN IN FINE TUNING AND THERE IS SOUND OPTIOND LIKE BG DK I AND M SELECT ONE ACCORDING TO YOUR COUNTRY THANKS M NASIR

Hi dear its main board problem and some time LVDS FFC cable problem . thanks M Nasir

THe antenna came of. Did you use it and is it giving troubles now? If not, then don't mind and leave it.

1. Hello
2. please connect your sound bar with HDMI1 which is ARC and you can control your sound bar with one remote.
3. thanks
4. M Nasir