Hi .i have a samsung UE40D5520.no image on TV,black light is working. i changed the T con board but still no image .could that be one of the flat cable from t con

SOURCE: T-con board for your samsung

The t-con board is very easy to replace. The only problem is you need to take a bunch of stuff off before you can get to it. How to replace it:
1. Take off the back of the TV
2. Unplug all the wires connected to the middle boards, you will need to take off the whole assembly that the 2 boards are attached to, the main power board and audio/video board.
3. The t-con board is under the shiny metal cover near the top of the TV. There are four small screws holding the cover in place. (You should be able to see the cover when you take off the back plastic cover of the TV).
4. There are 3 connectors attached to the board. The white one that comes from the audio/video board and 2 small ribbon type that connect to the front of the TV, probably the LCD panel.
5. The 1 separate connector is self explanatory. The other 2 are a little more difficult. They just slide into place. When you look at the connection, there is a brown "flap" holding the ribbon in place. You need to flip it up from the top side of the TV.
6. The old t-con board just comes out and the new one goes in.
Hope this helps!
Let me know if you have any other questions.
Ben

SOURCE: DVD plays only in black and white

Hey, I had this problem on Thanksgiving Day, trying to watch a dvd on my mother's HDTV. You should be able to hook up most standard dvd players to hdtvs. First you have 3 cords, mine were red, yellow, and white. The connections go as follows:

HDTV:
Audio| Component. The white cord should be in a white audio slot. The yellow cord should be in a yellow component slot (video) and the red cord should be in a red video component slot labeled Pr/Cr. Make sure you match the component numbers. For instance, if you want to use component one, then hook all of the cords into the slots for component one. Most hdtvs have multiple component hookups ( think multiple "channels" for your game system, dvd player, etc) so it's important that the corresponding cords go to the correct component slots.

DVD:
Match the yellow and white cords to the appropriately colored slots. The red cord should go into the slot labeled component video out Cr/Pr. Not the red audio out. This worked for me. Hope this helps.

SOURCE: I have audio, but no picture: when I first turn

usually the back right on but no picture, and the 12v to t-con ok. May be the t-con failure. But even it is true, you have to ensure it match with the panel (what model of the panel the t-con use for). LNT3232HX/XAA has 8 different versions, use 8 different panels and 10 different t-con board.
Also the main board or LVDS cable defective, could cause this issue.

SOURCE: Samsung 46" LCD LN46B650 started showing vertical

had a very similar situation with my Phillips 42 in. LCD TV.

Here was my Problem. The Power Supply Board. I opened it up( Warranty was Expired) and found several faulty capacitors on the PSB. Its pretty common. Major Electronic companies were sold faulty capacitors that fail in 2-5 years instead of 10-20 due to a lack of preservatives. It wouldn't surprise me if you have the same problem. TV will work fine for a few years and then just fail completely or slowly deteriorate.

Here are the solutions
1. Have it Repaired
2. Check for faulty caps and if you find some(budged or leaking) you know you have located a problem
Remove the board and replace the whole thing.
3. If you have some soldering skills you can replace the faulty caps.
Caps are very inexpensive, under a dollar in most cases. I replaced 4 for about $5.00

Hope this Helps.
Good Luck

SOURCE: HI, I have a 40" Samsung Flat Screen TV (Model:

This tv 100% have problems with the main logic Tuner signal board that the board where the tv board that the tv incomming broadcasting signal wire plug into it.This tv might also have problems with the T-Con board too.The tv T-Con board that the tv board sit in the middle at the bottom of the tv LCD screen panel to project tv pictures pixels dots to the tv LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com buy a whole refurbish main logic Tuner signal board and or a refurbish T-Con board for the replacement too.