Spring is coming, and it s time to fight in the battle of changing the tube seat and the high pressu

I am now using the Lanwei moisture-proof pipe header, we have a retail price of 4 yuan here, its advantage is that the discharge chamber is sealed, it should be more durable than the conventional one. View the original post

Finding a way to protect the header seal works well, and I always do that. Someone once doubted that this practice was not good, but the earliest seat I changed has been used for 7 years and has been very good. Here's how I do it:

First, the focus wire is welded, and then the pipe holder is covered with a plastic bag in the tube holder package, and the joint is sealed with 703 because the foot is worn out, and then welded to the board. The plastic in the groove in the middle of the header is scalded off with a soldering iron. Apply a circle of 703 to the root of the pins of the imaging tube, insert the tube socket, and close the source of the focus line with glue.

The method is a bit complicated, but I change it for 5 years, and the price is 50 yuan. What else do you have to say, let's talk about it, check out the original post".

Three years ago, I bought 1,900 tubes from a manufacturer in Yibin, Sichuan. Each 8 cents, now only 5 left, the time lasts for three years, I think it is better than the current 3 pieces of 5 pieces of the tube seat, people for a change of 30 pieces, to me 30 pieces I don't do it, because my tube seat than his ***, during the highest collection of 150, the most one day for 33 tubes, think about the days at that time, it is beautiful, but now, every day on the Internet. Drinking, depressed.

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I'd rather use a better quality header than save a few cents on a poor component! Because one is five cents short, how much money can be saved by replacing 200 tube seats a year? If there is a bad one, it will cause failure or rework; What do customers think?

Sometimes it's not like spending a hundred dollars to explain it. View the original post

Now it's Warburg. The quality of Lanwei and the brand was very good when it first came out, but when it occupied a certain market share, the quality was declining. There are many other brands that are not as good as before.

As a result, I don't pay much attention to brands now. When I change the tube holder, the plastic parts and focus wire on the picture tube are generally cleaned with alcohol first, and the welding end of the focus lead of the tube seat should be welded smooth (no burrs, so as not to produce the tip discharge), and then seal the solder joint with 704. It is also more durable after this treatment.

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Is there a difference between the 8 Mao tube socket and the block tube socket, and the expensive one will definitely be used for a while longer, not necessarily View the original post

Haven't you ever used an imported one? You can receive 150 yuan! And it's been 5 years since I changed it, and there has been no problem.

It's a pity that the purchase is expensive, about 35 yuan. Who knows** there are cheaper imported tube sockets for sale? I forgot to mention that it is generally imported into the machine.

Imported machines are expensive, so the price is negotiable, and the better it is, the higher the price. View the original post

I use Duowei, Lanwei, Baolingwei, Guoxin, etc., the feel of the intubation seat is Guoxin and Duowei good, I am most afraid of using a lot of strength when inserting, cold sweat, this thing can be used for 1 to 2 years is enough View the original post

This is caused by you not cleaning it, remove the high-pressure cap, clean the high-pressure nozzle with industrial alcohol or banana water, you can also use sandpaper to polish the rusty part of the high-pressure nozzle clean and shiny, and apply high-pressure arc extinguisher or petroleum jelly when installing, which can prevent rust or ignition.

If you haven't done it, don't mess around and avoid damaging the picture tube. It's better to ask a professional to do a good job.

The tube socket is the picture tube socket, which is generally white on the picture tube tail plate, that is, the visual release plate.

The tool only needs an electric soldering iron, rosin solder wire, do not move the power supply and high-voltage cap, so there is no need to discharge, and the tube holder can not touch the 300V filter capacitor and high-voltage nozzle, so it is not dangerous.

It must be soldered with a soldering iron, and after replacing it with a new one, it must be soldered again, and it cannot be replaced without tools.

It's not that it's easy to get damp against the wall, and it's not easy to get wet under the TV, but the environmental humidity has a big impact.

Yes, the money is earned not saved, if it is not professional, it is recommended to ask a master to repair it, if you really want to try the soldering iron yourself, it is necessary to have, and it is not expensive to buy one, but you must be careful.

Don't look at it one piece, If you don't understand, you will press it yourself, there are many models, some are universal and need to be modified, installed wrongly, the electron gun will scan randomly, the picture tube will break, don't do it yourself if you don't understand, you have to pay more RMB to expand the failure!! It's not worth it, you change your perspective, find a way to make money, and find a professional master to fix it for you!!

Just remove that header from the circuit board with ferrochrome and take a new one and solder it again. Just one ferrochrome is enough. Be careful not to shake the board from side to side when taking the circuit board from the picture tube, the tail of the picture tube is fragile and can easily leak air.

In addition, the humidity is related to the humidity of the room, and it will be better to turn on the TV more in rainy weather.

To add,The inside of the early Changhong tube socket is a little different,I don't remember which two feet are welded together,If it's Changhong TV,Take the old tube socket apart and look at it,And then weld the two feet of the new tube socket together。

Self-regeneration is worth advocating, and you will starve to death if you repair it like this.

First of all, prepare tools, a soldering iron, a soldering iron, a few long solder wires, and a multimeter is better.

Operation: First of all, the viewing plate of the picture tube should be unplugged from the picture tube, note that it may be very laborious, easy to damage the picture tube, and the consequences will be borne by yourself.

Then there is a soldering iron to suck the solder of the pipe holder, unplug the pipe seat, and solder the power supply line of the focusing pole.

Take the socket to the accessories and buy it, preferably the same one. If there is no same, then it is necessary to measure whether it is universal.

If you are not professional, it is better to ask a master to fix it.

There is no need to discharge the tube socket, because it is not a high-voltage cap and other high-voltage parts. If you finish the black screen and socks indicate that you have not changed the socks, or there is no good place, if you don't know and don't understand this knowledge, I suggest that you should also answer the question is to find a professional to repair, because if you don't get it right, it will damage the picture tube due to small losses.

Replace the header.

The easiest thing to do, first you determine the header of this part, (see ** for the white part connected to the kine pins).

1.The header is the part that connects the release plate and the picture tube, and the header is removed from the board with a soldering iron.

2.Then unplug the tube socket from the picture tube.

3.At this time, there is a wire on the tube base and a wire connected to the high-voltage package on the board, carefully observe, open the upper cover of the pipe base, this wire can be welded down. And just like that, the tube seat was dismantled.

Take the old one and buy one that is exactly the same. Come back and solder it according to the steps just now, and put the picture tube back on.

4.There is no technical content, it is welded, just be careful not to touch the picture tube, just handle it gently.

The header is installed at the end of the picture tube, and requires a soldering iron, a solder suction device (a needle with the same diameter as the header pin), rosin, and solder. It is best to turn off the TV for 10 minutes before changing it, disassemble the tube socket to pull it out (be careful otherwise it will damage the picture tube), and pay attention to connecting the focus line.

The tube socket is the picture tube socket, on the picture tube tail plate, that is, the visual release plate, it is generally white, the tool only needs an electric soldering iron, rosin solder wire, do not move the power supply and high voltage cap, so there is no need to discharge, change the tube socket can not touch the 300V filter capacitor and high-voltage nozzle, so it is not dangerous, when changing, pay attention to the model of the tube socket to be consistent, do not use too much force when holding the tail plate and pulling out the tube seat, so as not to damage the picture tube or pull off other leads.

Listen to me, you spend twenty or thirty yuan to find a master to change it, although it is very easy to change the tube seat for maintenance personnel, but it is very difficult for people without any experience, you will lose more than you lose if the picture tube leaks, and it takes money to buy tools.

If you are not a professional, don't move, don't spend much, ask a master to do it, the tail is very squeamish, there is a small tail that is evacuated, if you don't get it right, there is a crack, the picture tube will be finished, when I first started learning, I broke a black and white TV set in my own house, the difficult ones will not, the ones who will not be difficult.

Agree with the statement of the second floor. I'm also engaged in home appliance repair. The cost price is 3 to 5 yuan, and it may cost about 20 yuan to take it to a repair shop. The charge is different for each region (master)!

First, remove the VCB from the CRT neck, remove the solder from the tube seat foot with a soldering iron and a solder extractor, and the tube seat can be taken out, and the new tube holder can be inserted and soldered firmly.

1: The tube socket is usually divided into two kinds, large and small, large 9 feet, small 7 feet, only 34 inches or more of the TV tube socket is special, usually most of the tube sockets are 9 feet, it is also universal, there is no difference in model, you should be careful when changing the tube socket, you can't force your wife, 2: The high-voltage package is not a professional Try not to move it, the high-voltage package is still high-voltage within a few hours of the TV shutdown, and you are afraid of more than 30,000 volts.

Except only Sony TVs, which are powered off and have no power. 3: The electron gun is in the sensing, in front of the tailboard.

The quality of the tube seat is not good, with **.

There are all in the electronic market, are you **? Linyi home appliance market is on Jucai Road, where the new bus station is.

Three reasons to find a Improper adjustment of the focusing resistance on the high-voltage package or poor contact, you can try to adjust it when you turn on the machine to know b There is leakage at the focusing resistance of the high-voltage package, you can use alcohol to clean it with alcohol balance C There is too much dirt on the focusing cable, especially on the side of the tube seat, and the alcohol cleaning should be cleaned after wiping (the pinhole of the focusing tube of the picture tube should also be cleaned) If it cannot be solved, it may be an internal fault of the high-voltage package and needs to be replaced.

Let's see if the high-voltage package is broken and the focusing voltage is abnormal.