How to test CCFL in LCD TV - laptop - monitors / cold cathode fluorescent lamp tester
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- čas přidán 5. 09. 2024
- The CCFL tester is a small powers source for general application in this kind of lamps. It is easy to use, but it requires a correct connection procedure. It saves a lot of time in troubleshooting and testing in LCD television.
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I took apart a Visio tv and found that the backlight for the LCD was CCLF tubes, and idk why but I was damn well obsessed at that point, I never knew what a CCLF was, but now I do today, and that shit is amazing
Dear friend, always remember electricity is dangerous if we lack of knowledge. Stay in te channel and let`s learn more step by step next year.
@@bob.kalpon1398 this is late but yes, I am quite knowledgeable with electronics and electrical stuff in general, thank you for the comment anyway
Howmany amps should the power supply be
link please?
Sir , What is the Voltage Required for CCLF ? To glow ?
300V and 300mA
@@Memes-XD are they all 300 volts? I have one that is 40 inches long and It came from a samsung tv I took apart.
@@Memes-XD DC current? i tried with 600 volts max measurement scale, the result was OL, over limit, so what is the real voltage for one lamp?
@@thesummertune i have two pairs, so 4 tubes, one pair should work with 300v 300ma if it isn't blown. i haven't tested mine so i'm not certain. i found that info somewhere online
@@Memes-XD a tech guy told me that lamps are powered by AC current not DC current, so i don't get the different wires color.
I took several out of an Samsung TV and I'm not sure what the nominal voltage is. The CCFL lamps are 40" long
Thank you very much for your knowledge and the video, it would be nice to share a homemade circuit diagram, thank you very much.
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Juanchi querido, electrónica o tecnología son sinónimos de lengua inglesa. A un lado vas a poner el libro de electrónica y al otro el curso de inglés. Siempre te recuerdo entre los comentarios. Te deseo lo mejor, y el mejor consejo a dar es: busca en enero una academia de lengua inglesa y a empezar con ello. :-)
if in lcd tv i have two connectors for the backlight ccfl lamps
and each connector has one wire
how can i test the lamps ?
lg42lc55 is the model of tv
Excelente vídeo ingeniero muy buena explicación pero pienso que debería hacer uno en español saludos desde peru
I made the same test for a bunch of ccfl lamps. The result was that I 've got light for all of them but not in all the length! The lamps lit only by the half! Do you know why? Maybe the power supply... 9v 330mAmps???
Use 12v at least.. As for the Amps i use at least 1A to be safe!!
@@georgecharalampidis200 thanks for the answer better late than never. the answer indeed was more amps. so i found a power transformer with switch selector to pic the desirable amps.
Is this one rated at 10mA or more?
Is there a chance of having a weak CCFL ?
How many voltage and amps in need to run 1 lamp
Hi! It is better to refer it to the lamp's datasheet. This kind of tester are made to do not be enough, just to make to light a little most of the common lamps used in 10" to 17" screens.
@@bob.kalpon1398 Hello, that tester it seem working even with CCFL lamps from a 19" screen. i have a monitor LG flatron W2042T and it turns on for a moment, the power led stay on, i replaced the inverter transformer but no change, i tried with two good lamps tested with that lamps tester and are ok, connected to the LG, still same issue, so i don't get what is the cause, it can be the power board or even the video/main board? what i have to check?
Where can i buy one of those testers
Ebay has them.
Hola amigo kalpon di puede hacer otro en español x fa gracias
Now it only costs CHF4