Re: m471i-a2 no backlight

I ended up soldering on new led's for the ones that had gone out. Has been working since.

Thanks

Re: m471i-a2 no backlight

So I have replaced the power board and now some of the led's do not work leaving bright and dim spots on the screen. I have tried to find the whole strip but have not had any luck. Can someone point me in the right direction to buy replacement led's for this model?

Re: m471i-a2 no backlight

Thanks for the replies,

I looked at shop jimmy but the board they have in stock is 1A1 and mine is a 1B1. Is that a compatible board? The reason I asked about the components is that when I was checking it out two of them are cracked. If the board is compatible I will be going with that option.

Thanks

I have no back light and was hoping I cold get some information on the transistors in the picture. As you can see one is for sure shot but i was going to replace them all while I was at it. I am unsure how to identify the components I need however. If I could get pointed in the right direction I would forever grateful.

Thanks...

Re: Samsung UN46D6900WF no picture

Thanks for the Quick replies!

I rechecked pin 10. 13v 12.81 so it looks like I did count wrong.

Rechecked BLU and most of the other pins and they were all correct.

With the main board disconnected the back light is on and solid. Relay clicks and stays.

With the TCon unplugged it shows the same symptoms.
So problem with the main-board. Looks like I can pick one up on electronics bay.

Anything I can look at as far as a component repair. Anything else you guys could recommend...

Samsung UN46D6900WF need a little help.

I am unsure if I should start a new thread or try and get some help here where there is a lot of the same info but a little different.

I can provide pictures if need be but I have confirmed that the power supply board is the same as well as the main-board.

My issue is relay clicking, led flashing, no picture, no back-light, in a continuous cycle that even continues after the unit is unplugged briefly. Back light comes on solid when the main-board is disconnected.

Voltage readings are off from...