Top 20 Sony Bravia KDL-40V4100 40 in. LCD HDTV Questions & Answers

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here. .

Fault at its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electro-medical.blogspot.com/ http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

T'Con board fault. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should be troubles hooted. Contact any service technician. The circuit will differ with models and versions. Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

T'Con board fault. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

These blinks [flashes] are fault indication (Error Codes).From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it.This will make repair easy.These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times.Count it carefully.If you wish to get some details, check the site linked here.It has details about blinking codes, and fault locating, to many popular brand TVs and other devices.Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/ Blinking codes details to many popular brand TVs are given. Gopakumar Gopalan Google

Sony Bravia KDL-40V4100 models have a problem with the screen going blank, faded or washed out ( negative ghosting) . It is caused by a bad chip on the T-con board. A replacement chip is available from shopjimmy.com (Sony 55.40T02.C08 T-Con Board Component Repair Kit) for $14.95- If your not an excellent solderer, send your board to them for a repair $69.95.

Power supply regulator board fault. These blinks [flashes] are fault indication. You can get an idea about the faulty stage circuit inside the TV, by the number of these blinks. Count it carefully, by switching it ON and OFF, more than 2 times at least, so that, you can make sure about the number of these blinks. If you wish to get more details, check the site linked here. Surf the site in "MOSAIC" view. http://electronicshelponline.blogspot.com/

Service manuals are in PDF, and cannot send it by this window. To get some information, http://electronicshelponline.blogspot.com/Pull up older posts.

Try to reset the tv first from set up menu. then check the brightness control working properly.

If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic equipment service help. You can get a solution there. Type in the brand name to your device to its search box, can be located at the top right of the display window. It will make search easy. More than Nine Lakh viewers cannot be wrong.http://electronicshelponline.blogspot.com/

Actually try one more thing before concluding that there is something wrong with the sound board or one of the wires in it on this Sony Bravia television. The cable box settings might not be just right for this television. Are you currently set to pcm or bitstream on this cable box? pcm might also be displayed as 2 ch 48 or 96 khz. Play around with the sound settings and see if one or the other will solve this sound issue before writing off the television.

set should have a blink or error code of some type if set does not work--count red and or any other lights blink sequence---3 blinks, 5 blinks etc.

well known information but do you have some problem?

The red stand by indicates the set is in PC stand by the blinking orange timer is indicating the timer has been set or has an issue

More likely to be bad T-CON board or poor DC feeding it, you need a lot of disassemble to troubleshoot it.
Learn about SONY T-CON board here:

http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT
http://www.mediafire.com/?zzjygannjty PDF download

http://s807.photobucket.com/albums/yy352/budm/SONY/

Basic LCD monitor and TV troubleshooting guide: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting http://www.fixya.com/support/r7406380-tv_training_manuals Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.com Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.

Can you please count the number of blinks in between each pause so that I can tell you what the problem is? Its a self-diagnostic error code that makes the diagnosis a lot easier

Hi Friend,
Check your TV's remote battries. If they are good, then, power off the TV at the main wall socket and unplug the power cord, leave it for 5 minutes. Now, connect back the main power cord, hold the Power On/Standby button on your TV and power then turn ON main switch on the wall. This should resolve your issue.

Thanks,
Shiva

VIDEO AND AUDIO BOARD NEEDS TO BE REPLACED.. YOU CAN ORDER AT GOLDENLEPRICON. COM... IT COMES WITH INSTRUCTIONS.. SUBMIT MAKE AND MODEL TELL THEM YOUR PROBLEM THEY WILL GIVE YOU THE PART YOU NEED.

Ok you have a bad electroni tuner. You will have to buy this new unless you know of another broke down set like yours that you can snatch one from. The company will sale you the whole motherboard. This will be your best option and yes it will fix your problem.