PNI E.
Senior Member
Last Activity: 10-20-2025, 02:01 AM
Joined: 11-10-2024
Location: Rome
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thanks, i ll buy a give a try. with google in the end i find it should be a xc6111a but i could not find more...now thanks to u i ll try withh the l78l33 thanks... -
After some time i find the write on that . It s a 8a343....but i dont understand what is it.... someone know something about it and find me a replace?...
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thanks for your answer. im not really good. but what i underand the problem is on that board in the photo, and i check every caps and they are ok. the only short i have is from one pin and the center of that mosfet on the red circle. first i dont know if that is the problem...but should be there.....abd they erase all the name of the component so i dont know how to understand what type of mosfet is...can you help me to understand what type of mosfet is....if it s a mosfet thanks...Leave a comment:
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Dyson v15 problem with the dust detector board
Hi guys, I have a Dyson v15 that didn’t work. The battery blink 10 times. If i disconnect the cable of the dust detector board, the Dyson turn on but after some seconds stop because didn’t feel the flow of the air because I disconnected the bird sensor, if I connect the Dyson is death. I notice the big mosfet I think with 3 pins. If I check the mosfet I have a short circuit from the center pin ne the left pins…so I think that s the problem or I wrong? The problem I can’t understand what type of mosfet is….someone can help it s hard to find. New board...
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hi diah yes i know it s a cheap tv, but i ll like to try to fix, usually the lines i fixes with the tape were black, these have coloro like green, blue so i tought the problem could be somewhere else. about the masked 2 pins left i really dont see, d there is no tape. i tried the tape method but i still have the lines or getting worst, so i take off the tape take the first photo with all the two ribbon cable on, and then one with the left off and the other one with the right off, but i dont have half screen nice and clean....Leave a comment:
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hi diah, I swear the photo u see aren’t with tape. With both the ribbon cable u see the picture with color lines, if I take off one ribbon cable at time I have always the horizontal line…...Leave a comment:
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Tv grundig 50vlx21ldl horizontal colored limes
Good morning guys, I have this tv that have horizontal colored lines ( green, blue, black). I tried to disconnect the two ribbon cable on the t con, first the left side and then the right side. But the lines still are there…so I tried the tape method but didn’t work. Can someone help me to try to fix this tv. I give you the photo of the panel, and the panel with the left ribbon unplugged and then the right. Thanks for your help...
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i just gift the tv, i gave up on try, im sorry...Leave a comment:
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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...Leave a comment:
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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:
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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:
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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:
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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:
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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:
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Iotas we need your magic.........Leave a comment:
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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:
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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:
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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:
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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:
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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...
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