I was lucky too, got also good guidance!
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MariSico
Member
Last Activity: 09-11-2023, 01:19 PM
Joined: 02-13-2018
Location: East Gwillibury
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Re: UN60D8000YFXZC Samsung - not powering ON
I was lucky too, got also good guidance!...
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Re: UN60D8000YFXZC Samsung - not powering ON
Thank you very much lotas, and everyone else, for helping me....Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
OK, some good news, I hope. I did not have the right SOT-23 3.3V regulators in my stock, but I did have SOT-223 and TO-92. So I used an L78L33 regulator because it was easier to solder, I know it is only 100mA, but so far it worked well. I turned the TV ON for 10 min only, I was afraid that the lower amperage regulator will heat up, but it is not even warm. Do you guys think this will do the job? If 100 mA is too low I could replace it with an AMS1117 3.3 regulator.Last edited by MariSico; 11-26-2022, 02:33 PM.Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Sorry, I did not replaced IC1204, I replaced IC1402....Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Here is an update, I have removed IC203 and the short is in the IC203. I checked the board too, no short in the area where IC203 was soldered. IC1204 is already replaced, so now I have to find a suitable replacement for IC203. Any ideas?Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
I think I'll unsolder it to see if it is the IC203 that is shorted or the short stays with the board....Last edited by MariSico; 11-21-2022, 07:49 PM.Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Thats why I replaced it....Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Here is a close-up picture of IC203....Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Diah, you are right, it could be also a shorted trace in the sandwich, or after replacing this suspected IC, I might find something else broken. In reality it is more a challenge for me to try to fix it, buying a "second hand" board is as risky, most of these boards do not much perfectly, like different code and\or board "topology".Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
Those two caps, C208 and C211, are not shorted, and unfortunately I have no idea what IC 203 is!Leave a comment:
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Re: UN60D8000YFXZC Samsung - not powering ON
That is the original IC1402 that I already replaced, I posted it so people could see how it "exploded"! The second picture is to show the main board code and manufacturing date.Leave a comment:
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UN60D8000YFXZC Samsung - not powering ON
Hello all,
I have this TV for 10 years now, it worked with no issues until a week ago when, after turning it ON, it turned itself OFF, after running for ~10 seconds and it gave me the smell of "electric fire"! I unplugged it from power, removed the back cover and found a "fried" chip, IC1402, on the main board. Removed it from the board, and replaced it with a new one from DigiKey.
Unplugged all the cables connecting the main board to PSU, powered the TV ON by plugging the cable to the power and measured the voltages on the PSU power connector (backlight also... -
Re: The old IC appreciation thread
I found more of these "treasures" in an old box I got from a friend who decided that it is not worth the time to find the info about old ICs! For me, it is different, I like these oldies and would love to be able to use some for some home made experiments! I have attached a couple of pictures with this lot of "old" ICs. If anyone has some handy information about those please let me know....Leave a comment:
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Re: The old IC appreciation thread
Yes, you are right, the only reason I wanted to use those it was because I have them, no other reason. I also have the new drivers, K155, but it looked interesting to me to try to use some "very old" drivers. And I will probably do it as a breadboard experiment.Leave a comment:
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Re: The old IC appreciation thread
Thank you all for helping out. It seems to me that using these F996079 I have (6 in total) is not worth it because if I lose one I am stuck with trying to buy one from eBay for the stellar prices associated with "collectible" items!
Many thanks to all of you again, love this site already!Leave a comment:
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Re: The old IC appreciation thread
Thank you, I got these drivers only, no PCB to be able to do any reverse engineering unfortunately. I was thinking to use them, but it is risky because I have only 6 and eBay is selling those as "collectibles" for crazy money. :-)Leave a comment:
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Re: The old IC appreciation thread
I have a couple of F996079, do you know where I can get the datasheet or pin-out for this driver?...Leave a comment:
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