REALLY AWESOME DUDE YOU ROCK MAN THE WAY YOU DESCRIBE THINGS AND SHOW THEM TO THE CAMERA ARE QUITE SOMETHING ,,I MUST TELL YOU I LEARNED A LOT ABOUTR LCD PANELS WITH THIS VIDEO......KEEP IT UP ....
Very good video! Very detailed and informative, just like a good training manual! Thanks so much for taking the time to make this video! You've helped me in my troubleshooting a lot!
Those litle dots on the plexiglass reflector are printed with High Definition UV flatbet inkjet printer plotter, everything else is not etched, but engraved or cuted with lazer
Hi Great video, really explains alot, would a lot of tiny white dots over a screen mean that the t con board no longer has control over the pixels and therefore that the screen is junk?
That is an unusual looking T-con board. Thanks for going over the main board. i cannot believe how they have shrunk a whole TV (and I remember working on the old CRT TVS) onto such a small board. I do know that it is low voltage with SMD chips on it. I can't solder SMDs, and have been loosing jobs because of it. Next time I get a job like that, I am going to use ChipQuick and see if it is any better. Why does this LCD TV not have any holes to see if the back light is working? I opened up a Samsung LCD TV with the screen not lighting up and it had no back light LCDs. It looked like it had nothing. Samsong would not tell me anything because I am not an authorized dealer. Is there a new generation of LCD TVs that are not using back lights? What are they using and how do they work?
I don't know if this will be helpful, but to my knowledge there is no LCD that doesn't require a light source as LCDs don't produce any light they only impede or almost totally block light. Organic LED (OLED) is the next generation that doesn't use LCD at all. OLED is the light source.
I wish they would make the LCD panels thicker & stronger so they wouldn’t crack so easy! I don’t know why the factories don’t fit a thick glass or perspex on the front as a screen protector like the really old roundie & rectangular CRT’s.
With CRTs, the thick glass was mandatory since there's a high vacuum in it, which means the atmospheric pressure introduces 10N force, or 1kg to each sq-cm of the surface of the tube. For a large tube, that could mean literally TONS pushing it from every direction constantly, from the factory until it breaks. That's why they implode so violently if they break. With LCDs, there's no need to make the glass thicker than necessary. They could make it twice as thick as they do, but it would cost more to manufacture, so they don't. And I'm not sure, but maybe a thicker glass might be disadvantageous to the quality because the two polarizers would be further away from each other. They do make rugged / vandal proof LCDs where there's a thick tempered glass on the front of the screen, but it's not the part of the actual LCD panel. And they sell them for quite a substantial premium. Here's an example from 12+ years ago: www.techeblog.com/video-asus-lcd-monitor-withstands-crossbow-shots/
As I got LCD monitors from year 2003 to year 2012, their LCD was so tough. Got some from junkshops. But 2013 and later, they were not that tough. The oldest LCD monitor I got was IBM Thinkcentre L150 monitor, I only resoldered some cold solder and now it is well. It only need its polarizer film to be replaced.
Hi......You didn't mention a power board? what about the power to run the set? Otherwise very informative! and your usual excellent demonstration. Ray H. ( From the U.K. )
This was a *very* informative video and very cool!! Your knowledge and skills are amazing! I appreciate your videos immensely! I was going to suggest to use the florescent light as mood lighting for your fish! But the wife might appreciate them more! :)
JacksJunkDotCom It's a reef tank, with live coral, which requires the strong lighting as they use photosynthesis to produce energy, similar to how a plant works, except coral are animals, not plants. They use UV light, but they also eat food, and in some cases they will eat fish if they get a chance. You can see my aquarium video on my channel.
Tom Van der ven This particular unit, because it is a small screen only has 2 fluorescent tubes, at the top and bottom. larger LCD screens will have several tubes running across the screen.Then there is LED backlit screens that will have either a series of LED strips running across the back, or will be edge lit like this. But yes, most LCD TVs are constructed in this way. I have a tear down of a 50" LED with a broken screen as well as a plasma if you look for it.
Tom Van der ven This set used an external power supply. Most have the inverter inside. Check out my other repair videos on LCD sets and you will see a couple of different Samsungs, a Sharp, LG, and a Samsung Plasma. They are all totally different.
Tom Van der ven Most of the small ones have the tcon circuits as part of the panel, and have a single circuit board like this. Take a look at the "Craig" tv service video. It is also a small one,a nd looks very similar inside. There is a limit to the length of the LVDS cable length between the board and the display. LVDS stands for low voltage differential signaling. Essentially it is a twisted pair, like Ethernet, where 1 wire goes positive, and the other negative, and they reverse the polarity to encode the bits 1 or 0, and is done at a very low voltage, as the lower the voltage the faster they can switch polarity. So this does limit the length to a few feet of wire.
I doubt you'll see this, but is there a way to replace one of those IC ribbons if you were to get a donar TV. I ask because one of the ribbons burned on my TV and nothing else is wrong but that ribbon.
Ya realize one has learned all about flat panel TV repairs when you can finish all of your sentences before you do...lol great vid on how to reclaim ccfl lamps from a piece of shite TV, thanks 12volts, keep on keeping on!
thank-you for this video yes am a bit of a herd I always wanted to know where the lamps in the TV were cause I always thought they were in the back haha but am a girl and just learning 😀👍
My 55" plasma, think it was Panasonic & know was pricey, radiated so much heat the overpowered A/C couldn't keep up even in the coldest months... Ridiculous.
I'm trying to use an old 46" LED LCD light box for making videos,. but after a period of being on (no signal) it goes in to sleep mode. I'd like to prevent it from doing that. Still trying.
