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Sony BRAVIA KDL-40V3000 Television Questions & Answers
Digital channels are not being saved during auto program.
Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go.
http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
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; check the site linked here.
We have a Sony Bravia KDL-40V3000 flat screen
It's a connection inside the TV that's faulty. It could be as simple as reseating the ribbon cables that connect the control board to the glass display. Or it could be that the fault is on the board and needs to be replaced. The fact that the problem comes and goes should tell you it's fixable.
TV HDMI ports not working
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.
Tv green light flashes
cuando le dan a prender prende el led verde y la tv prende prende por 3 segundo presenta en la pantalla el letrero sony y se apaga la tv y el led verde. luego prende el led rojo 2 parpapadeo pausa larga 2 parpadeo y pausa larga y se repite
KDL-40HX755 red light triple blink
Over voltage protection circuit energizes. Check its main power regulator section circuit for fault. Check all the solder terminals at this section for any loose solder. These blinks (flashes) are fault indication. By the number of blinks occur at one time switch ON, you can vet an idea about the faulty circuit stage inside the TV. Count the blinks occur at one time switch ON, carefully. Do it once again, and make sure about the number of blinks. If the flashes are continious, non-stop, the main system control IC should be suspected. If you wish to get more details, check the site linked here. It has blinking codes detail to many brand TVs. Pull up older posts.
http://electronicshelponline.blogspot.com/
No picture
No SDA SCL communication. Check all the low voltages to the system control board. If you wish to know more, check this site.
http://electronicshelponline.blogspot.com/
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Can't tune DTV
Get an amplified antenna, for about 30$ from radioshack and try that, you get no guarantee that you will get stations at all, you can get channels in one spot and two inches away get nothing so a lot of thing affect your reception, with dtv it's gonna work or its not, no more fuzz or semi pictures like analog. Your home may have crappy reception period- but the amplified antenna should get you something- if you get a picture be sure to leave the antenna where it is, moving furniture and other conductive materials can affect your reception also....too much to even write here this is a big subject---try what i have suggested and let me know if it works... good luck
Only half of the screen is working
Most likely it is the screen that is bad and it probably can't be fixed however it is worth opening up the TV and getting to the T-CON board, wwhich drives the LCD display.The T-Con is located at the top middle of the TV looking from the back and it's usually covered by a shield cover.You can tell it easily by its location and the large cable that goes to it from the main board.The board's ID should be 4046HSC4LV3.3 (make sure to verify that once you get to it!) and it should look like this:
What you are looking for is the white cable that goes out from one of the two connectors at the top of the cable and goes into the LCD display.I'd recommend pulling out the one that's on the side of the half that does not work and inspecting it for burns.You may also swap it with the other.The odds of succeeding are low, even if it is burned and you replace it, but a few times I was able to fix a display like that.For more help feel free to check at our site
www.coppelltvrepair.com .
Six red blinks
a 6 blink is the power supply board that connects to the inverter board. check your plug connections again, make sure the small plug on the side is seated all the way in. but more than likely when you changed the backlite board, if you didn't take the lcd panel apart you damaged the ccfl tubes, which was most likely the original problem. one of the tubes go bad (smaller around than a pencil) that run across the screen behind the diffuser the white panel behind the lcd substrate. check that out and let me know...... thanks, Terry.
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