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11
LCD TV forum / Re: SONY KDL-40R480B NO STBY LED
« Last post by jose almeida tavares on December 28, 2021,06:08:12  »
The fuse is ok.
12
LCD TV forum / Re: SONY KDL-40R480B NO STBY LED
« Last post by jordan on December 27, 2021,08:25:00  »
Check SMD fuse F6001
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LCD TV forum / SONY KDL-40R480B NO STBY LED
« Last post by jose almeida tavares on December 27, 2021,08:02:24  »
Heelo ni need help. This tv not working. No stby led. Thanks.
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LCD TV forum / Re: Help with FSP212-3F01 low 24V and 12V!
« Last post by sinclairtv on December 27, 2021,08:00:21  »
Congrats on finally repairing it after 5 years
15
LCD TV forum / Re: LG TV: image = No. sound = Yes
« Last post by downunder on December 25, 2021,20:45:54  »

Well, it's  an improvement of sorts. So the metal cover I suspect is the heat sink for the microprocessor. The plastic "screws" are usually press-in from the top side.
On the reverse side you'll see a bulge in the plastic pin which you squeeze with long-nose pliers and work the pin out. Doubt if you need to do that though as all you'll mostly see is the top of the microprocessor. Does that metal cover get super-hot to touch and have you ever had an actual picture on the screen in its current state. Have you tried heating the main board in a household oven for 10 min. @ 180 deg. This used to recover LG main boards -albeit temporarily - but it doesn't seem to work on more recent LG tvs. Watched the video and my conclusion is main board or panel faulty, most likely panel if taping has resulted in some change to the display - not the Christmas joy you wanted.
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LCD TV forum / Re: LG TV: image = No. sound = Yes
« Last post by Snuf3 on December 25, 2021,07:15:40  »
Yes the buzz is coming from the main board. I haven't noticed the buzz before but it may be due to the fact that I didn't listened to noises . I think that I tried to press the metal cover of the T con and nothing happened. I would love to uncover that T con but the it's a bit tricky. there are 2 plastic screws with a Spring mechanism well I have a tendency to break things when I don't understand how they work so maybe I will save it for later
there is also a strange behavior: when I turn on the tv I see:

first I see only the left side which is really dim.
After 20 second a stripe appear on the right side
then the left side become bright almost perfect white!
and after that the right side become bright but more gray in color

there is a timing notion. I imagine it because of the blocked stripes on the cable
this is a 10 seconds video I made that describe 1 min of reality
I speed it up so it won't be boring to watch
https://youtu.be/6OuithZyBNg

would you  say that the fact that I advanced from no image to very bright image is improvement? or am I at the same stating point?
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LCD TV forum / Re: LG TV: image = No. sound = Yes
« Last post by downunder on December 24, 2021,03:03:27  »

Are you saying the buzz is coming from the Main board (the one with all the AV inputs on it)? And have you noticed the buzz before? I can only suggest that perhaps by blocking some stripes it has somehow upset the T-con on the main board. Is the buzz affected by finger pressure?
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LCD TV forum / Re: LG TV: image = No. sound = Yes
« Last post by Snuf3 on December 23, 2021,08:36:42  »
Hi Bruce
How are you?
I checked the capacitors and they seems fine.
I took a bit of alcohol and I washed off the blue marker that was on the red cable(It came like that from the factory). It had an impact. By doing so and by blocking some stripes with a tape, the red cable show strong white input {{see image attached}}.
stronger than the white cable which give a weak and fade signal. By connecting the red and the white cables I managed to see a bright full screen.
Another thing that I think may help. There is a buzz sound from the motherboard. It continue also after turning off the TV. it dies only by taking the power cable out of the socket.

 I feel like advancing. I finally got the red cable to show life signals and I found out about the noise.
it comes exactly behind the metal bar the I guess hide the integrated t-con.

Do you have a guess?
19
LCD TV forum / Re: Help with FSP212-3F01 low 24V and 12V!
« Last post by cheeky2 on December 22, 2021,14:10:41  »
I finally dug out this power supply with the low voltages from the FSP212-3F01 and thanks to the above post I finally managed to get the correct output voltages after replacing the C8 2.2uf 50V with a 10Uf 50V electrolytic capacitor! I checked the C8 with my peak esr70 and it was around 3uf with around 1.8ohms so not defective by any means but I guess just not man enough to provide the sustained voltage for powering the pfc controller.  I have learnt a lot over time with respect to repairing and was going to check the pfc boost across the mains capacitor as it only made sense that it could be the output voltage wasn't high enough to provide the voltage for the 12V and 24V outputs.
 Anyway just thought I would keep this information for others to read if they are suffering similar issues with there PSU.
 Found some other files for anyone interested as well :)
 Merry Christmas :)
20
CRT TV forum / Samsung UE46H7080SV eMMC pinout
« Last post by saud52 on December 18, 2021,05:27:09  »
Dear colleagues!
I need eMMC firmware and eMMC pinout
for LED TV Samsung UE46H7080SV
chassis: U89A
motherboard: BN41-02167A
panel: CY-SH046DSLV1H
eMMC: KLM4G1FEAC

thanks in advance
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