OK... tomorrow, I will take good quality pictures of all the terminations of the six lamps, just to see if I'm right or no.
If that is not the problem, what would be the next trail ?
Thank you !
Mornagest
Member
Last Activity: 06-11-2012, 04:35 AM
Joined: 09-15-2010
Location: Near Lyon
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Re: Samsung 215tw display cuts out
OK... tomorrow, I will take good quality pictures of all the terminations of the six lamps, just to see if I'm right or no.
If that is not the problem, what would be the next trail ?
Thank you !
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Re: Samsung 215tw display cuts out
Ouch. When it is - even a little bit - blackened, that means that the lamp is out of service ?
Then... I think the six (three up and three bottom) are dead !
Edit : I guess if one of the two assembly was OK, I would get an image on the screen... correct ?Last edited by Mornagest; 06-09-2012, 03:14 PM.Leave a comment:
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Re: Samsung 215tw display cuts out
Unfortunately, it still doesn't work. I get the same symptoms, even after changing all burnt wires by new one (Kynar, so).
Any idea ? Maybe the light tubes are bad ? How can I test them, as I have no save tube at home...
Thank you !
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Re: Samsung 215tw display cuts out
Bought 5 meters of Kynar AWG30
I hope I will be able to fix this, now...
To be continued...Leave a comment:
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Re: Samsung 215tw display cuts out
Is there a way to test the lamp without reassembling the whole thing ? If not, nevermind, I will try to reconnect the wires to the bulb and test the screen. If that still doesn't work, I will buy some cable...
[url=http://www.ccflwarehouse.com/hivoccwi.html]Do those two fit ?[/url] As I have three wires, I don't know which one is the low voltage, and which one is the high voltage... what is the utility of the third one ?
I'm not afraid by some soldering, in fact, the scary thing is to reassemble plastic parts tighten...Leave a comment:
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Re: Samsung 215tw display cuts out
I found this connection to the ccfl ! Sorry for the bad quality of the picture, it is 10.00 PM by me
(no more sun)
I suppose I just have to cut the burnt part and solder a new wire part ?
What kind of wire do I have to get ?
Thank you !...Leave a comment:
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Re: Samsung 215tw display cuts out
OK ; I will take the multimeter back to my work, as it ain't mine.
I will try to have a look to those lamps ; I don't have any spare, anyway... maybe I will be able to see if one is burnt.
Thank you !Leave a comment:
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Re: Samsung 215tw display cuts out
Here you are
T1 : 902 Ohms
T2 : 904 Ohms
T3 : 918 Ohms
T4 : 896 Ohms
T5 : 903 Ohms
T6 : 908 Ohms
I guess these are all fine. Could it be a problem with one of the ccfl ?
Thank you !Leave a comment:
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Finally, I could get a multimeter. What I have done :
[list=1][*]looked for the MOSFET but I couldn't find it... what a shame... where is it on my board ?[*]measured the resistance of the fuse (I found one, I guess there ain't a second one as nothing else looks like it on the board) : 0,001 Ohm. The fuse seems to be OK.[*]then I measured the resistance between the transformers pins, and I'm also confused ; what do I have to measure, exactly ? Is it the resistance between 1 and 2, 1 and 3, 1 and 4 as shown on the pic ? If this is it, I measured 900 Ohms, 850.000 Omhs and 850.000...
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Re: Samsung 215tw display cuts out
Hi,
Done ; I see the image as described in the topic.
Now I read it, thank you. Since I have no multimeter at home (but yet at my lab), I will have to wait tuesday to take it back home.
Same as above
It is done
OK so the multimeter is really vital !
Thank you for your answer...
Leave a comment:
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Re: Samsung 215tw display cuts out
Still doesn't work despite the replacing of all caps (except the largest one). The symptoms are exactly the same : the screen works for two seconds, then turns completely black...
Any idea ?Leave a comment:
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Re: Samsung 215tw display cuts out
Wow, I just checked the prices... it would be stupid not replacing all the capacitors ! It will cost less than 10 €, wire include...
OK, I will try to buy this tomorrow if I have enough time. And fix this as soon as possible.
Thank you !
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Re: Samsung 215tw display cuts out
Once it is said, it looks obvious... many thanks !
I will try soon to buy a new one ; got a good electonic and electric store not far from my job.
Is there something special to do when soldering ? Got a 50% tin wire, does it fit ?
Thank you once again
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Re: Samsung 215tw display cuts out
Hello,
After many months of hibernation, I took the time to take some pictures from my cards... here they are, front and rear.
If you need anything else, ask me
Thank you !...Leave a comment:
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Re: Samsung 215tw display cuts out
Hello,
I have a multimeter, I used to use that a few years ago when I was a student... but it wasn't on electronical components, only on electrical. It shouldn't be too difficult, I hope
I will take pictures tomorrow, from the inverter and the ccfl, front and rear.
Thank you for your answer
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Re: Samsung 215tw display cuts out
Hello,
I got the same issue with the same LCD screen ; according to a reparator, it seems it is an inverter problem, but I'm not sure exactly how to confirm that.
The problem is the same as Almoodie described : when switching the screen on, I get an image for about half a second, then it disappear until I switch it off and on again. The blue light that shows the screen is switched on is still lighted, so could it be a problem from the power board ? Is it still possible to buy a new one somewhere, on Internet ?
...Leave a comment:
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