Samsung ue49mu6120

[bohaboha]

Hi lotas I don't want to interfere in something that I don't understand but I'm being confounded because you saying in post 442 that you have to make a change on CH341A and I've seen on Youtube Sorin (Electronic repair school) prove that you don't need to make any change at all because there is no high ampere that can destroy any component.I would like to understand to learn and i see that you know what you are talking about . explain to me please
here is the video: https://www.youtube.com/watch?v=J8-Sh7DjiXw&t=27s

[Diah]

Open the datasheet on CH341A and look at 9 pin if you switch to 3v power supply. In the circuit for modification, there is no need to remove the capacitors, but replace them with tantalum of higher capacity.
https://4pda.to/forum/index.php?show...st&p=125980884

lotas i know you related to documents when you advice... but what i have no need to change at all.... the early version of this programmer as the diagram you posted yes nut now days no more in the market.... just the new version black one.

[lotas]

panel CY-KK040HGNV2H
tv UE40MU6400UXTZ

There is only a dump for CY-KK040HGNV2V - the difference is in the last letter, try it and lastly try writing down the eeprom IC801 24C512 (UE40MU6400U).

[lotas]

lotas i know you related to documents when you advice... but what i have no need to change at all.... the early version of this programmer as the diagram you posted yes nut now days no more in the market.... just the new version black one.

Diah yes, I'm not forcing anyone here to remake this “programmer”, let everyone decide for themselves and do it at their own peril and risk, I don't use it at all, I have more expensive programmers that I trust (UFPI, RT809F,H, Nand ProMan, TL866CS, TL866 II Plus, Xeltek SuperPro 3000U, 611S, Z3x easy jtag...)

[bohaboha]

Hi lotas, I'm really sorry if I've hurt you, it was absolutely not my intention and wise, you don't force anyone to change or keep original programs, I just wanted to learn, hope you accept my apology and share your knowledge with us.

[toptib]

There is only a dump for CY-KK040HGNV2V - the difference is in the last letter, try it and lastly try writing down the eeprom IC801 24C512 (UE40MU6400U).

Nothing to do, even writing both of them remains the same problem I think it's definitely the processor bad.
Lotas Thanks anyway

[lotas]

Hi lotas, I'm really sorry if I've hurt you, it was absolutely not my intention and wise, you don't force anyone to change or keep original programs, I just wanted to learn, hope you accept my apology and share your knowledge with us.

Yes, everything is fine!

[Salvocchio]

Hi Lotas.
do you ultimately recommend that I do the modification or not?
I have ordered the tantalum capacitors and the 4.7 Khom resistors.
In post n. 455 you refer to a link where however in the schematic I do not see the two 4.7 Khom resistors.
Please suggest what to do? I am not able to make up my own mind.
I would like to remind you that my problem is that I cannot set the registers.

[lotas]

Hi Lotas.

I would like to remind you that my problem is that I cannot set the registers.

Yes, resistors must be placed in the gap between the tracks.
And it is better to use the program "NeoProgrammer V2.2.0.10"
And register may not be installed, because there may be protection, first you need to remove the protection, that is, uncheck all the boxes, click “Write”, erase the chip, write dump and then install status register.

[Salvocchio]

Yes, I performed the sequence given in your description
but it doesn't work.
It does not store 42 in the first register.
When I read it back it gives me 40.
Do you think it is a programmer's problem and I need to make the change?

[lotas]

Anything is possible, what program do you use?

[lotas]

It does not store 42 in the first register.

Status register 0x42 should be in the second, that is, 0x88, 0x42.

[Salvocchio]

yes, sorry, the second register.
I use ASProgrammer

[lotas]

Use NeoProgrammer V2.2.0.10

[Salvocchio]

ok. Are tantalum capacitors 4.7 uf at 10 volts and 22 uf at 10 volts okay ?
Is the voltage at 10 volts okay?

[lotas]

Of course, the maximum usb voltage is 5v, just install the capacitors correctly (they have + and - polarities).

[JoeFlash]

Hi! I have a TV, Samsung ue49ku6100, no boot, when connect the power cord, the leds are up and down repeated. When i disconnect the MB, the leds are up.
I have an IC programmer: CH341A
MB model: BN41-02528
MB code: BN41-02528A
I found 2 winbound chip, 25q40cl and 25q80dvs. Which IC is need to dump?

edit: on the glued label: BN94-10826K

[alex39t]

iotas my goodfriend i want your help one more time and for xgecu how to put protect mode?

[lotas]

iotas my goodfriend i want your help one more time and for xgecu how to put protect mode?

This dump is working, and the status register is like in the photo.

[alex39t]

You said that dump i have is good?