PNI E.
Senior Member
Last Activity: 04-15-2025, 11:17 PM
Joined: 11-10-2024
Location: Rome
-
hi davi, i didnt put the firmware that iotas give me here in the ic, because i didnt want made a mess so i stopped....if i find a new board and i trow this, i ll try, so im looking for a motherboard but it s always different model so i just need to be patient... -
thanks Iotas, yes if the owner of the other tv didnt show me the main i dont buy it i will wait until someone put it on ebay, thanks Iotas...Leave a comment:
-
i think we can say the board is death...we tried and i thanks all of you, i tried also far from my skills....my friend ssaid me it does not turn on, so i tought i could fix it, she never said the tv will turn on one sec the standby led and bliking the red led when press the remote.....if she said me the true i ll say her it was over my skill. i really thanks all the people who help me you are really a great comunity.
the problem is find this board...i found a tv with broken screen but it s 55tu7172, and the seller dont want open it for show me the board, do you know if it has a chance...Leave a comment:
-
thanks david for your time, yes i download the software you said me and i checked but i could not finsh nothing that match on the original so aslo i understand it will not working thanks for your time...Leave a comment:
-
yes david firstly i tried with other parameters but give me an error, then i look better at your photo and i put the same your parameter and i had the file it s like 1 gb, i tried to open it, and i understand it s all the firmware because there are a lot of things ahahah, so i had an idea to look for with the comand find in the text edit software to find the first words of the dump i extract from the 25q40. the problem is i have a really old pc, it s a dual core and when i try to find the first word of the dump that i have my pc freeze ahah. i give you the link of the file u can dowload on gmail...Leave a comment:
-
my skill is over the moment it s not a diode in short hahah so im far away, with your parameter i had a file but it s 1 gb...so i think i have to find the part i need, or i made a mess ahha but i really cant do nothing ahah it s over my knoladge. dont worry i dont do nothing i didnt sold back the eprom too ahah waiting an help from you ahahLeave a comment:
-
Iotas we need your magic.........Leave a comment:
-
davi u are really gentle, the things is the mainboard doesnt work, i dont find a replace so we can try with all we want because the other way is waiting for find a used mainboard or trash the tv so we can do all we want. i dont understand what i should do...i go to that site you give me put some parameter and it give me back the dump file? or it s or check if the dump file i have works?
so i tried the site, i download the firmware update from samsung, i put the file upgrade.msd in that site but give me back after try to decrypt bad decryption.......Leave a comment:
-
really if it s the problem we found the problem...then we just need to find a dump i hope Iotas can help me, he is like a god of dumps ahahah. honestly i never read an ic in my life....it s the second so i dont know for that i put the dump file here if someone can help me...and didnt work so we can try also other dump maybe we are lucky....hope someone can help me......Leave a comment:
-
so i desolder the ic, the program with detect find the 25q40, i read and i have something, so or it s not working, but we cant know if we dont have an other dump or the problem is somewhere else...maybe in the psu...because i have 13 volt and not 11,8 that it s written on the board on the strtandby point....i really dont know ahah. hope someone can find the dump or say me if i have something broken in the main. now i give you the dump of the standby ic that i read, i dont know if there is someone who can understand if it s ok or no.....the first part it looks like there is something, then all...Leave a comment:
-
ok first thing i try to desolder it from the main and read, and see what i have, then hope someone here can help me....Leave a comment:
-
I take a better photo of the chip, and a landscape, there are a lot of point of control, and I have main cpu debug tx. There are a lot of this point control and description, so I don’t know if I’m doing good. But the point near the name main cpu debug tx go to the first pin of the q40b I don’t know if it s correct or I’m checking wrongs point. Do you have the dump of it because I really don’t have haha...
Leave a comment:
-
Hi, thanks for your help you don't need to be sorry, i thanks all you help me and I ll be happy if we fix this tv, the question is why Samsung make 1 board for everything, psu+main+tcon all in one….and I like to fix because I didn't find a main board with this model .
For your question I checked the board and I find two ic memory, ic501_ut that is q80c-104gip that should be a en25q80c-104gip but i didn't find a lot on internet. And in position ic503 that is a 25qb-104 gip that I find easy on internet. Are they what are you looking for? I give you the photo...Leave a comment:
-
Iotas u were right maybe i wrong something but i desolder the ic again clean with alchool and after different try i finally have a dump, not all blank i post it here. so the problem should be somewhere else...or the dump is not working.......Leave a comment:
-
no...there is an arrow that show the first pin....i try to desolder again and solder back...Leave a comment:
-
your dump inside have some letters symbol etc...mine is al point like this ........................... in all the dump you have only .................... these points...Leave a comment:
-
Sorry I make now the jumper but nothing changed, do I have to check some voltage?...Leave a comment:
-
I did but nothing change, all is 00, I give u the photo of the first page and the last, but they are all the same…....Leave a comment:
-
thanks, for help me.
i tried to turn on the tv with the ldvs cable off, but nothing changed. So I tried with Ldvs plug in, but with the buffer board disconnected first the right side but nothing changed, then the left side I could not disconnected because there arrive the ldvs, so I try to cover the pins with the tape but nothing changed. The tv when you plug the cord for a second the standby led turn on, then disappear. So the tv look like all death no back light no sound nothing, but if u press the button on the tv or the remote control u see the led flashing until u press it and then...Leave a comment:
-
and you have the dump for this model? where can i find?...Leave a comment:
No activity results to display
Leave a comment: