Hello,
I have a Samsung UA55JU7500 Curved LED TV
a Customer brought it to me complaining that he had Vertical lines going through the screen it will not show a image and has no sound or response from the remote control or the onboard controls
When you first turn it on it flashes up a full display of lines then dims out the lines then 2 seconds latter they come back and remain on for 3 minuets then the panel shuts off to a black screen
I have since done some investigations and discovered the following
He put the wrong size screws into the stand and the screws penetrated into the Tcon board on the edges causing circuit board damage to the Circuit board I don't Know if he has damaged the LCD
He told me he opened the tv and removed the damaged tcon board and replaced it with one he purchased from EBAY ,
I have had a close look at the Board and made sure the Ribbon cable are connected correctly and the Power supply voltages are present to the Tcon board
I am getting the supply line to the tcon 13v at the SMD fuse on the board
I am all so getting it at pin 1 on the Ribbon connector at the FCC boards
I am not sure if he has damaged the LCD or the fault is due to a firmware missing or mismatch on the Tcon board to the Mainboard
Your help is appreciated in pointing me to finding the problem
I have a Samsung UA55JU7500 Curved LED TV
a Customer brought it to me complaining that he had Vertical lines going through the screen it will not show a image and has no sound or response from the remote control or the onboard controls
When you first turn it on it flashes up a full display of lines then dims out the lines then 2 seconds latter they come back and remain on for 3 minuets then the panel shuts off to a black screen
I have since done some investigations and discovered the following
He put the wrong size screws into the stand and the screws penetrated into the Tcon board on the edges causing circuit board damage to the Circuit board I don't Know if he has damaged the LCD
He told me he opened the tv and removed the damaged tcon board and replaced it with one he purchased from EBAY ,
I have had a close look at the Board and made sure the Ribbon cable are connected correctly and the Power supply voltages are present to the Tcon board
I am getting the supply line to the tcon 13v at the SMD fuse on the board
I am all so getting it at pin 1 on the Ribbon connector at the FCC boards
I am not sure if he has damaged the LCD or the fault is due to a firmware missing or mismatch on the Tcon board to the Mainboard
Your help is appreciated in pointing me to finding the problem
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