Samsung UN60EH6000 wont come on after lightning strike.

[Davi.p]

Take the original main board, remove D407, D409 and test the tv, power board is almost surely ok, but you have not tested the power on-off pin.. further ic905 you have posted only one voltage, pins are 3!!

[karthur]

Did you make sure the replacement mainboard was a match, usually done by matching numbers on a sticker on the boards and did you try a firmware update on the new board, also not always but in some cases a lightning strike can mess up the firmware and an update can fix it.

I checked the "new" board the best I could (it doesn't have the stickers on it). From the ad where I bought it, it should be the same as my OEM board. I have not done a firmware update. Not even sure how to do that without being able to get to the MENU screen. Any information on how to accomplish that would be welcomed.

Can you test these 2 diodes correctly, meter in diode mode, tv unplugged from power, look at this video it's very simple to test them,

I tested both the original OEM board and the replacement board. These chips were damaged on my original board as you can see from these pictures.

The original OEM (damaged) board.





New Replacement Board





Thanks

[nomoresonys]

Which ones are you referring too? If you are talking about the D407 and D409 that I found burned, these seem to be diodes and upon more checking are not good. One is totally open in either direction.

These diodes are close to the RCA input jacks on the board. The only port that was connected during the strike was HDMI1.

Can you test these 2 diodes correctly, meter in diode mode, tv unplugged from power, look at this video it's very simple to test them, he's checking a double diode around 7:40 mark: https://www.youtube.com/watch?v=0VfSvU1AHfc

[nomoresonys]

Did you make sure the replacement mainboard was a match, usually done by matching numbers on a sticker on the boards and did you try a firmware update on the new board, also not always but in some cases a lightning strike can mess up the firmware and an update can fix it.

[karthur]

Absolutely, replace the board

I have not given up on this just yet. I finally got around to replacing the main board and I still have the same issue. I have replaced both the main and T-con board. The only one left is the Power board. Before I spend another $55 on this thing, can someone tell me what to check so I can have a clue if the problem is the power board or not?

There is a picture of the power board on post #9.

Much appreciated.

[karthur]

Posted it below..... Thanks

[karthur]

That would be my guess, but I am not 100% sure about that.

[Davi.p]

So the software is all within that Small spi flash

[karthur]

Is it a smart TV? I guess not..

Correct. It is not a Smart TV.

[Davi.p]

Is it a smart TV? I guess not..

[karthur]

Post your own dump.

Here is the bin file for my UN60EH6000FXZA. Chip is a Winbond W25Q128BV.

Thanks

[Davi.p]

Component inputs was not connected!!

[angelos]

These are protective diodes and they are located at the AV signal input; if something was connected during lightning, then the discharge passed through this input and could kill the processor.

Absolutely, replace the board

[Davi.p]

you can try to solder tiny wires, not all pins needed, vcc, gnd, di, do, clk, wp and maybe cs... have you got an old transformer to unroll the wire?

Note: Lotas thankyou for the dump for the Sharp tv, it worked!

[lotas]

Do I need to remove the chip from the board or can it be read while installed?

It is better to carefully unsolder it, clean the contacts from flux with isopropyl alcohol and read the data on the programmer through the adapter socket.

[karthur]

Do I need to remove the chip from the board or can it be read while installed?

[lotas]

Found a .bin file on ***********. They charge for a "VIP" membership in order to download the file. Anyone used this site? I am needing the " UN60EH6000FXZA bios bin".

Thanks

Post your own dump.

[karthur]

Found a .bin file on ***********. They charge for a "VIP" membership in order to download the file. Anyone used this site? I am needing the " UN60EH6000FXZA bios bin".

Thanks

[karthur]

Voltage on these components
IC204 (on the tab) 1.5vdc
IC601 (on the tab) 3.3vdc
IC602 (on the tab ) 1.8vdc

Does anyone have a dump for the IC901 chip?

[Davi.p]

There was no need, it's a common 1117, so what you have on tab of ic601? if 3,3v it's ok, then software issue..stop..