20 Most Recent Sony BRAVIA KDL-40V2500 40 in. LCD HDTV - Page 7 Questions & Answers

Hello,
All Plasma and LCD TV have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times reseating the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to rectify.
Good luck in solving the problem...

Hi,
The Standby/Power light of the TV blinks when there is any internal malfunction in the TV. The self-diagnostic function of the TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue.
Few examples are given below; some of the issues may be resolved without the need for service.
1 blink / 2 blinks / 5 blinks: - This indicates that there may be a power-related problem with your set.
3 blinks: - This indicates that there may be a power-related problem with your set. The set will need to be serviced to allow a technician to determine the specific issue that needs to be repaired. If the power light flashes three times in sequence in a Lamp TV, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
4 blinks: - This indicates that there may be a back light or lamp power problem.
6 blinks: - This indicates that there is some kind of audio problem with your set.
7 blinks: - This indicates that there is a temperature problem with your set. Please check to make sure that the air vents on the sides and back of the set are not blocked or clogged and there is adequate ventilation around the television. We recommend that you check and clean the vents periodically to make sure the set receives adequate air flow. If the problem continues, the set will need to be serviced.
8 blinks: - This indicates that there may be a video-related problem with your set. If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
If the issue continues to occur, service may be required.

Thanks for using Fixya.

unfortunatly, horizontal lines on an lcd tv, almost always mean a bad lcd panel. if it is out of warranty, it will be really cost prohibitive to replace the panel. if the set is only a year old or so call sony customer support and ask for a concession for the part.

Here is a directlink to the User's Manual for that model of Sony TV:http://support.sony-asia.com.edgesuite.net/consumer/IM/4110257141.pdf To view the Owner's Manual with Operating Instructions just use your mouse to click on the link, which is the underlined and highlighted text just above. This will open a new web browser page automatically for you and allow you to view the information at the website indicated and the contents of the Owner's Manual. You may need ADOBE READER installed on your computer to read PDF documents. You can download this free at WWW.ADOBE.COM if necessary. Click on the DOWNLOAD ADOBE READER button on right side of the ADOBE home page when you get there, then follow the onscreen instructions to install the software on your computer. I hope that was helpful to you, good luck and take care. Joe.

You need to toggle through the inputs on the television. Look at your Sony remote, to the top right of the directional keypad, is an "input" button. Turn your DVD playervon, and then press that input button until you see something on your tv screen.

3 blinks pertains to a problem with panel voltage. May need to have power supply replaced or Inverter module if available.

I don't know where you're located but you may want to double check with Time Warner on the availibilty of an HD box. I have TWC with an HD tier package and have an HDMI out on the box that runs directly into HDMI on this TV. Hope that helps!

There is bad news on this. The vertical lines mean the LCD panel is bad. You might get lucky and it is the Tcon board but there is an issue with these LCD's and Sony is aware of it and have extended thier warranty on certain models. You need to contact Sony support for details. Here is a link but it is refering to the 46" model.
http://esupport.sony.com/US/perl/news-item.pl?news_id=378&mdl=KDL46XBR4
There is also the email support if you have trouble with them on this, it is http://[email protected]
I would advise you to contact your local dealer first and discuss this with them and see if they are willing to help, if not go straight to the manufacture as listed above. Don't have any work done on this till you recieve word from Sony on the problem. If it is new enough they will replace the display and repair the set for free or a reduced cost.

This is a common fault as the set on ageing deteriorates in the connections. There is a high possibility that the components over a period of heating and cooling, tend to bring on a problem of dry soldering. So my advice is to check the set for some loose joints that have played on to give you these erratic shut downs or poor performance.

The best way to check for loose connections is to tap lightly when the set is powered on , If there is change while tapping then it seems that there are DRY solder joints. Remove main plug, the covers - with caution of high voltage, check for dry joints, use a good soldering iron to solder all suspected points.

Sometimes the fault occurs when the set warms up, if so you can simulate the heat using a hair dryer on the suspected areas, try with the power supply, distribution, Processor controller, driver controllers on the A/V related sections. Also the use a FREEZE-IT spray can simulate the components to cool and show up the fault.

Based on the above method you must be able to locate the area of fault and solder the sections. Sometimes large IC's- ones with more pins- tend to have drying in some pins and so cause faults related to the IC's protocol. Have a rough idea of looking into the areas to reduce the time of probing.

Bad T-CON, or bad power supply can be the cause of the problem.
See example here:
http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/
http://s807.photobucket.com/albums/yy352/budm/SONY/

Download and read more here:

T-CON: E40951307-TCON Troubleshooting 10-22-09_OPT

http://www.scribd.com/doc/25276757/E40951307-TCON-Troubleshooting-10-22-09-OPT http://www.mediafire.com/?zzjygannjty PDF download If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: 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 Parts: www.interliquidparts.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.

Power supply board have internal components defects and the tv main Tuner signal board could be defective also,buy a refurbish power supply board and replace it first tv should work again.If tv still have the same problems,must also require the replacement of the tv Tuner signal board too.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board and the tv Tuner signal board too,if required.

There is a fuse in the power supply board near the end of the board.The tv power supply board is it dead.That the board where the power a/c cord plug in.Power surge by a storm,change the fuse will not help the board to work.Because all those ICS on a power supply board are very sensitive to electrical static charges are dead already.Tries websites like Shopjimmy.com,Ebay.com to buy a whloe new refurbish power supply board for the replacement.

The tv power supply board have problems and the caused,check the tv power supply board have it fixed or services by u or tv tech.most likely those capacitors parts are dying on the tv power supply board like bulging or puffing up.Take the tv aparts,check the tv power supply board that board where the power a/c cord plug into it.Carefully check for capacitors parts for bulging and puffing up on to it tops.Changes all these dying capacitors,tv should be work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I also have a 2 yr old Sony KDL32xbr4 that now has multi-colored vertical lines on the screen. I contacted Sony and they say they have "no known issue" of this sort for this model. I find this rather puzzling since I have found numerous postings on the web. They told me to try the factory reset. Whatever. Might as well have said "don't buy a Sony". 2 years! $1300 for a tv and it lasts 2 years! Makes me sick to my stomach.

nosignal

That problem is commonly cause by a weak power supply.If you open the back of your tv try to follow the ac cord it is connected in the power supply, then try to look for a swollen capacitor it is easily seen because of the oil that spilled on the pcb then replace the capacitor, but you should check the polarity before replacing it.

Here you go pal: http://www.discounttvparts.com/A1197882B_p/PBF-2334.htm . There website shipping policy says that they ship worldwide, so Good Luck!