Re: Finlux LED backlight not working
I'm sure it's not a bad joint. I saw some of them and made them again, so it's not. I ordered new driver and when replace it will see if it is. But there's nothing else, that seems to be defective. Thank you 'till now!...
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Re: Finlux LED backlight not working
Guys, the LED stops lighting, and after some time starts again.
Last time I opened the TV again, pluged into the mains, the LED did NOT lighted and I measured 24V, going to it.
I can not find out which element on the board is the problem.
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Re: Finlux LED backlight not working
They were already changed 2 times untill now....
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Finlux LED backlight not working
Hello guys!
My Finlux TV backlight stopped working. I disassembled the TV, saw I don't have the tools to replace the backlight and assembled it again [B]without replacing[/B] anything. So then the backlight [B]started[/B] working again.
A day after it is also not working.
I decided now to remove the back cover and get the output voltage to the backlight. I placed the TV facedown and connected to the mains, so - [B]nothing[/B]. I disconected, removed the cover and [B]connected again[/B] to the mains and then the backlight [B]lighted again[/B]. So strange.
Output voltage...Last edited by stoian_93; 08-19-2023, 01:51 AM.
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Re: Samsung BN44-00369B
Hello friends! Thanks for help until now.
I replaced all the capacitors and also FAN7530 (ICP801), RP804, RP805, DP803, but there's also no screen and no backlight.Last edited by stoian_93; 11-05-2022, 06:28 AM.
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Re: Samsung BN44-00369B
This is also a task to do when replacing the elements - to look and resolder the bad joints....
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Re: Samsung BN44-00369B
I checked both, not shorted. Found FAN7530 (ICP801), RP804, RP805, DP803 in stock, purchased and gonna replace and see what happen....
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Re: Samsung BN44-00369B
If you're talking about the transistor joints, they're like this because the paths were cutted when father tried to replace it, so I joined the paths this way after him....
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Re: Samsung BN44-00369B
Hello!
I checked:
Element - Original - Checked
RF817 - 10 KOhm - 9.92K
RP804 - 68 Ohm - 1.1/1.2 MOhm (not seem good)
RP805 - 27 Ohm - 1.2/1/3 MOhm (not seem good)
DP803 - multicet shows 398 Ohm, is it fine?
About ICP801 - there are no FAN7530 in stock here, what analog can I get?...
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Re: Samsung BN44-00369B
You mean the same transistor - it's okay. TV is working, there is sound, stand by, on/off remote controling, on/off sound, but no screen and backlight....Last edited by stoian_93; 10-25-2022, 08:59 AM.
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Samsung BN44-00369B
Hello, folks!
I have an Samsung LCD TV with defective powerboard [B]BN44-00369B[/B].
First, it was a defective [B]STF13NM60N[/B] transistor ([I]QP801[/I]), so I replaced it. But now, there are no Backlight and picture.
There is no power to [B]CNI801[/B] output, even no power to the [B]TI801S[/B].
To the [B]CNI803 [/B]there are:
Pin / Voltage
1 (12V) / 12.88 V
2 (GND) / -
3 (GND) / -
4 (LD) / 0.00 VHello, folks!
I have an Samsung LCD TV with defective powerboard [B]BN44-00369B[/B].
First, it was a
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