20 Most Recent Sony BRAVIA KDL-46V3000 Television - Page 5 Questions & Answers

That can be the 24vdc (for backlight), and 12vdc (for sound) is bad or it is not getting the PS_ON signal from main board, or it is in shutdown mode due to shorted circuits.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: Please see my basic troubleshooting guide here: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting Failed TV and Monitors: 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. Please post back what you find.

sounds like it try another one

Try reseating the ribbon cables between the T-CON board and the LCD panel first.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: Please see my basic troubleshooting guide here: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. Parts: www.shopjimmy.com

Please post back what you find.

I'm assuming that your signal input is good and you have tried connecting to a cable box, DVD, or game system (make sure you try more than one input and more than one source).
If the TV doesn't recognize any input it will go into a power save mode if this option is turned on in the menu. This will in turn shut the TV off and looks like a malfunction.
If the power light is coming on, signal input is good, but no other functions are working the most logical explanation would be your video main board has failed. Some people may tell you the problem is in the power supply but that is incorrect. This isn't a very difficult repair but I would still let a technician look at it before buying the board as it is costly.
Joe

Hello,

The reason your television is having distorted vision and screen going black with sound is because there is a problem inside the unit. This problem could be caused by either a bad lamp or a faulty t-com board.

My best bet is the lamp, because it is when the lamp start developing any fault it begins the distorted screen thing and coming up black.

What you hsve to do is to get a replacement lamp, open up the television and replace the lamp with a new one, after doing that your television will be in good condition once again.

Take care and good luck

go to main menu mode look for the video settings, try to adjust it manually.

Don't do anythings,just let it do it job.After it finish.Just pick exit.Tv should be on it way functions normal as it should.

T-Con board is part of lcd panel and lcd panel seems defective in your tv problem.
Call Sony/ Store if tv is still under warranty for cover or lcd panel replacement would cost you 80% of new tv price.

Best take the tv backcover off,check all circuits boards for lose wires or broken circuits boards.Secound,take a air hose or a fan turn on high,blow in all the circuits boards.Third put the tv back together again.Wait about 20 mins,plug in the incomming broscating signal cable first,than the power a/c cord.Turn the tv on.The tv should work.That should solved ur tv problems.

You can try contacting www.shopjimmy.com
It will be more than the TV is worth, better off selling the TV for parts on EBAY, then use the money toward the new TV. LCD panels are limited production run, and it is the most expensive of the whole TV.
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Panels do not crack "by itself". Did it come out of the box like this? If it was "hidden damage" they may reconsider. Think about it, in physics, something only gets cracked or damage when pressure is applied, either by force, temperature or improperly mounting.

If it's new it was made sort of ruined. The people who made this T.V. didn't put the color cards in perfectly so the cards just turn on off on off intell the T.V.color pockets are equal. There isn't so many things you could do about it but the best thing to do is just tell the people where you got this T.V. that it turns dark and back. If they don't do anything I guess your stuck with it. I had a T.V. that did that too. We got rid of it because it just bothered sooo it's just up to you.

Hi Andrew,
The failure with your LCD is with a defective T-Con also called LCD controller board but is some cases it could also be a defective screen. The cheaper way for the time being would be to replace the T-Con board and hopefully that should fix it. If after replacing the T-Con board the LCD still fails then the screen is way to expensive to replace, the cost of a new screen would cost the same as buiyng another LCD or more.
Check this link to find the T-con board.
This board is located in the upper middle part of the LCD cover with a metal shield.
Let me know if you need further assistance.

Now tv turn on?Front LCD screen panel power light indication flashes or totally dead?Yes,than the power board is dead,that the board where power a/c cord plug into it.Take the tv aparts.That the power supply board,require changing.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.