Top 20 Sony BRAVIA KDL-52W4100 52 in. LCD HDTV - Page 4 Questions & Answers

With a lent free rag, dampen with warm water a ring out well. That is all you need.

Sony BRAVIA... | 143 views | 1 helpful votes


The problem should be from the front panel control board. The board is defective or has disconnected from the inside.

To actually find out what's wrong, you need to disassemble the TV. But before then you need to be sure there is nothing wrong with the remote. I would advise you test the remote on another Sony TV irrespective of its model to be sure about the condition of the remote. You can test it on a family or friend's TV.

Once you confirm the remote is good, then you have to check the front control panel board of the TV, as it may have loosed contact or may have developed a fault.

Turn off the TV, remove it from the wall, wait for about 30mins before you attempt to disassemble it in order to avoid electric shock because TV stores a lot of current even after it is being turned off.

Get a screw driver, remove TV screws, open the TV back cover, carefully bring out the main panel/board to gain access to the front panel.

Check the wires connected to the front panel, make sure they are intact. Also check if the buttons are not stuck . If all seem intact and problem persists, then it means the board is detective and needs to be replaced.

I hope you understand the message I am trying to pass across.

Good luck.

Sony BRAVIA... | 634 views | 1 helpful votes

Are you using the cable box? For example:

Sony BRAVIA... | 287 views | 1 helpful votes

Hi Antonio,

Here are some basic steps that will help you fixing the problem.

I'm assuming that your unit is dead set without an standby LED light and your outlet is live.1.Power cord - check the cord it might be opened (no continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse- sometimes the fuse fail because of the power surge, replacing with new one will cure the problem, If this is the case I would advice you to use surge protector/AVR (Automatic Voltage Regulator). However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the link for more info. If no reaction and still the unit didn't power up then you have an open parts on the power supply.

4.If you see that the fuse is intact , don't attempt to touch anything because there some fatalcomponents stored electricity enough to hurt you with a simple mistake only. I would advice you to look for a professional to troubleshoot the power supply. If you want to repair it yourself make sure that you have necessary tools and test instrument. First check bad solder joints(re-solder all cold solder), leaky electrolytic capacitor(sometimes it has bulged at the top but not all, you better have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat sink), open fusible resistor (caused by shorted regulator Transistor/IC), shorted zener diode.

You may also replace the power supply board, try online like and

Also check if your unit is under warranty before opening the back panel, it will void the warranty. Avail it because the manufacturer of your unit will fix it for free or a little charge only.

Hope I helped you.

Have a nice day!

Thanks for using fixya.

Sony BRAVIA... | 155 views | 0 helpful votes

The part # you gave is the Control Board which sells for $668.79. The T-Con board your looking for is part of the LCD Display Panel and is not sold separately. I suggest you start by cleaning the ribbon cables from the control board to the t-con board. If that doesn't help then you had better take it in to a service center to verify which part is bad because there are no refunds, only replacement after you buy a board.

Sony BRAVIA... | 2,535 views | 3 helpful votes

Remove the check the ribbons cables. They get loose due to heat.

Sony BRAVIA... | 139 views | 0 helpful votes

Look for a button on the remote said like ASPECT RATIO,VIEWMODES.PICTURES.Pushes one of these bottons pick the picture that fit ur tv screen.

Sony BRAVIA... | 325 views | 0 helpful votes

Confirm that your source(s) are set to "widescreen" or "16:9". If you have the remote, use the "wide" button to cycle through the aspect settings. One setting should look better than the rest, without cutting off any of the picture.

If you continue to have issues, please list the source and source material you are viewing.

Sony BRAVIA... | 323 views | 0 helpful votes

Hi rthill80,

You may power on the unit in the dark room and directly shine the flashlight to the LCD monitor. You will barely see an image or picture because the fault is either the inverter board or the lamp (backlight). You may isolate the problem but it will require you some tools and test instruments. Also, you must know some basic safety precaution in electronics troubleshooting.

Best way to find the faulty parts between the two you need to test the output of the inverter board. You can do it using the voltmeter or if does not available you may substitute a two 12v car bulb in series to the output of the inverter board. Powering on the unit and look if the bulb will glow or not. Yes, your lamp was busted. No, the inverter board fail.

You may look online for the replacement of defective parts. If you can't fix it yourself, I would advice you to send it to your local Sony service center or look for a professional to troubleshoot the problem. Also, check if the unit is under warranty, avail it because the manufacturer of your unit will fix it for free or a little charge only. Don't attempt to open the back cover because it will void the warranty.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Sony BRAVIA... | 64 views | 0 helpful votes

The tv board call the T-CON decoders board have problems,that why colors vertical lines are showing up in the tv LCD screen panel.The T-CON decoders board,this board sit wright at middle bottom of the tv LCD screen panel.Tries websites like, to buy a refurbish T-CON decoders board for the replacement.

Sony BRAVIA... | 1,339 views | 4 helpful votes

you will need to reprogram your remote are you using the one that came with the tv? or an aftermarket

Sony BRAVIA... | 26 views | 0 helpful votes

It is an expensive item to buy if you can find one at all, and the potential for disaster when fitting is high. Have you ever replaced a screen? If not have a professional do the job or claim on your insurance if you are covered.

I hope I have been of help but please do not hesitate to ask if you have any further questions.
I appreciate your vote if you appreciate my reply.

Sony BRAVIA... | 47 views | 0 helpful votes

Yes, you can turn it On-Off by pressing power button on side of tv.
Required tv remote for KDL-52W4100 is available at
Hope these info will help you.

Sony BRAVIA... | 860 views | 0 helpful votes

You have a leaky capacitor in the high voltage section of your tv and it will eventually fail completely if not replaced. This is not an expensive fix $50. ballpark

Sony BRAVIA... | 1,011 views | 1 helpful votes

If you forgot the password you can put the master rest code in. The code is 4357. If you do not know how to do this you can get the manual on the link below page 38 and page 45.

Good Luck please rate 4 thumbs up and please leave a testimonial

Sony BRAVIA... | 298 views | 0 helpful votes

Try website like to buy an exact remote to the original remote.Tries tv unplug,replug tv an hour later,the tv will reset itself back to the factory setting,could solved ur problems.

Sony BRAVIA... | 522 views | 0 helpful votes

No,tv not repairable anymore,only worth as salvages tv for it electronic boards for parts only for other the same tv models and make that it.The LCD screen panel can't be fix only replaced the whole LCD screen panel.Sorry not replaceable,because the LCD sreen panel are 90% important to the tv,LCD creen panel are limited production by the tvs corporations,only can buy it by the tvs corporations themselves,yes they'll sell it to u,but they'll charge u the same as a new tv.

Sony BRAVIA... | 76 views | 0 helpful votes

Yikes, thats no good at all. First off, before we do anything big in the menu and setup of the TV have you tried a simple reset where you unplug the TV for at least 3 minutes, let it sit unplugged, and then plug it back in.

Let me know if you have done that, and if the problem persists, there is more we can do.


Sony BRAVIA... | 421 views | 0 helpful votes

hi all .ive had the same problem,a thick black line down screen.sometimes it flickers from top to bottom and other permantly in view.but i have solved it.forget your ic boards and taking apart tv.have you got either a ps3 or wii connected to tv.if so unplug power lead from socket and relocate in seperate socket.make sure the lead is completely free of any other leads and you might just find this works.i think the power lead creates some sort of frequency that the tv picks up .good luck hope it works

Sony BRAVIA... | 250 views | 0 helpful votes

you know sony is good brand name now people not trust sony because all made by koria same factory in samsung so some thing manufacture problem sony iso lot of complaint lcd tv panel are very less life time ony panasonic viera ips alpha panel is my opinion good becuse made by japan

Sony BRAVIA... | 416 views | 0 helpful votes

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