UE40D5000 no display or reaction to either remote or touch

[nomoresonys]

I don't wanna spend a lot of money on this TV since I just wanted to fix it since it might come in handy one day for something.
For the prices of the mainboards I could just get a professional to do it for me not that far away from where i live.

If a pro will do it for 19-30 dollars, then thats great.

[VaporGame]

All you need is a programmer (RT809F, RT809H,...) that supports this chip. You can reprogram it via the VGA port (scl, sck, gnd.)

Are there any cheaper options? I probably will rarely if ever use a programmer like that again, I don't care about speeds or anything I just need something that gets the job done. For the price of either of those where i live i could get a new mainboard.

[lotas]

You can try via CH341A, if there is one, I’ll send you the software and a photo with the connection...

[nomoresonys]

It's pretty hard to find even CH341A for less than 15 dollars, so as you can see it's just not worth the effort.

[VaporGame]

It's pretty hard to find even CH341A for less than 15 dollars, so as you can see it's just not worth the effort.

I actually got one really cheap from a store that is based in Poland. In USD it should be around 7,45.

[nomoresonys]

Well thats a great price.

[VaporGame]

Well thats a great price.

Yea prices are very different in different economies. I have a Turkish friend and when he told me his prices i was surprised too😄.

[nomoresonys]

I see where theyre availabe from china via ebay for about 7 dollars, always involves a wait period tho.

[VaporGame]

I see where theyre availabe direct from china via ebay for about 7 dollars, always involves a wait period tho.

I should get 24H delivery so I can start flashing it tomorrow. I would order it from aliexpress if i didn't care about time but i really just wanna get this done quick.

[nomoresonys]

Hope it works out, I'll be watching the progress.

[Davi.p]

Hi Vapor, i agree with 1st message of Lotas (except for the vga pins, them are TX, RX, GND, but it doesn't matter here), don't buy a ch341a, it's totally useless unless you are an engineer with software skills and much, much, much free time.. micro controller its not an eprom with a common language, it needs serial commands specifically for that chip, plus the chip is chinese or the like so difficult maybe for datasheet.. maybe i'm not right 100%, maybe the serial commands are not as complex as i said.. if i had time i would start a test programming with serial monitoring and gave to you the log to semplify your pc programming job, but i have no time and maybee not so wish, sorry, maybe we meet online this winter, bye

[lotas]

Hi Vapor, i agree with 1st message of Lotas (except for the vga pins, them are TX, RX, GND, but it doesn't matter here), don't buy a ch341a, it's totally useless unless you are an engineer with software skills and much, much, much free time.. micro controller its not an eprom with a common language, it needs serial commands specifically for that chip, plus the chip is chinese or the like so difficult maybe for datasheet.. maybe i'm not right 100%, maybe the serial commands are not as complex as i said.. if i had time i would start a test programming with serial monitoring and gave to you the log to semplify your pc program job, but i have no time and maybee not so wish, sorry, maybe we meet online this winter, bye

You are behind the times, anything is possible if you try...

[Davi.p]

You are behind the times

thankyou for your consideration, i remember im hobbist man.. but i follow with interest..

[VaporGame]

Sooooooo, the programmer WAS supposed to arrive last Friday, but it just didn't. I have it now though.

Hi Vapor, i agree with 1st message of Lotas (except for the vga pins, them are TX, RX, GND, but it doesn't matter here), don't buy a ch341a, it's totally useless unless you are an engineer with software skills and much, much, much free time.. micro controller its not an eprom with a common language, it needs serial commands specifically for that chip, plus the chip is chinese or the like so difficult maybe for datasheet.. maybe i'm not right 100%, maybe the serial commands are not as complex as i said.. if i had time i would start a test programming with serial monitoring and gave to you the log to semplify your pc programming job, but i have no time and maybee not so wish, sorry, maybe we meet online this winter, bye

I wanted to say that I may not be a engineer but i do have some software skills and a bunch of free time. Iirc the microcontroller was pretty well documented. Thank you for your concerns though.

I'll attach some pics of the programmer, and the documentation and software i got with it. (The documentation is in polish but there is probably a English version somewhere)

[lotas]

Connect the resistor in such a way that in the diagram set it to 1 kOm.

[lotas]

Then run the program "SiberiaProg CH341A v1.45", you have it in the software.

[VaporGame]

Connect the resistor in such a way that in the diagram set it to 1 kOm.

where exactly do i wire the resistor? Also my board came with a jumper placed, do i remove it? It looks like it switches modes but its in chinese, one says something and the other has TTL and something.
Also the schematic you provided provides 3.3v (which i also have from the programmer if needed) instead of five, and the resistor there is 2.2kom.

[lotas]

where exactly do i wire the resistor? Also my board came with a jumper placed, do i remove it? It looks like it switches modes but its in chinese, one says something and the other has TTL and something.
Also the schematic you provided provides 3.3v (which i also have from the programmer if needed) instead of five, and the resistor there is 2.2kom.

The resistor should be set to 1 kOm, we don't need to supply 3.3v, there is a 3.3v LDO on the board, which powers the controller, and we supply these 5v from the programmer, we need them to reset the controller. Connect like this.

There is no need to remove the jumper, it must be set to 1-2 pins, and you must first install the drivers for the programmer.

[Diah]

logically nice try experiment, but what about the eFUSE of the Soc which make the Flash blind unless the Soc agree to open it for out source !! this why there are terminal for each Soc play the roll of this matter ... good luck

[VaporGame]

The resistor should be set to 1 kOm, we don't need to supply 3.3v, there is a 3.3v LDO on the board, which powers the controller, and we supply these 5v from the programmer, we need them to reset the controller. Connect like this.

There is no need to remove the jumper, it must be set to 1-2 pins, and you must first install the drivers for the programmer.

I was thinking of trying to do this with wine, (I don't have anything running windows in my home atm) but I think I'll spare myself the pain and just use qemu with a windows installation