u/mcsw67

Have a LG 65UK6340PTF, it was working fine just

needed the backlights replaced as the screen had a

blue tint to it. Replaced the backlights now when I plug

in the AC Power cord the standby light is on then the

Backlights come on and then the Standby Light Blinks 3

times. There is no sound or image on the screen.

Checked and rechecked all connections but still the

same. Disconnected the Left Tcon Cable, checked

Screen and Left side was a greyish colour and Right

side was black. Then did the other side and same in

reverse Left was Bkack and Right was Greyish. Checked

Voltages at the Cable between Power supply and

Mainboard all correct. Put the old backlights back in but

still have the same issue. I am guessing an issue with

the Screen Driver Board / COF cables, had a good look

at them and can not see an issue with any of them.

Anyone able to suggest on what I should check next

Have a LG 65UK6340PTF, it was working fine just needed the backlights replaced as the screen had a blue tint to it. Replaced the backlights now when I plug in the AC Power cord the standby light is on then the Backlights come on and then the Standby Light Blinks 3 times. There is no sound or image on the screen. Checked and rechecked all connections but still the same. Disconnected the Left Tcon Cable, checked Screen and Left side was a greyish colour and Right side was black. Then did the other side and same in reverse Left was Bkack and Right was Greyish. Checked Voltages at the Cable between Power supply and Mainboard all correct. Put the old backlights back in but still have the same issue. I am guessing an issue with the Screen Driver Board / COF cables, had a good look at them and can not see an issue with any of them. Anyone able to suggest on what I should check next

Have an old Samsung Smart TV UA40F6400AM that

has no sign of life. Took the back off and found that on

the Power Supply, there was a burnt patch under the

negative temperature coefficient (NTC) thermistor,

specifically a DSC 5D-13. Can I just replace this or what

else should I check. Have posted a pic of the board if

you could show me what and how to check other Parts

that would be great