Teach newbie to judge the deflection coil fault trick - android - Phones Developers

Factory direct 0805 red light quality absolutely guaranteed price absolute advantage

AVX tantalum capacitor TLJB227M006R0500 original new goods

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

The deflection yoke is faulty. In a certain degree and performance, like the high voltage package, most novices will buy a high voltage package first. After replacing it, it is found that the fault is the same, the high voltage package becomes the inventory, which greatly increases the maintenance input cost. Today, CRT is about to withdraw from the stage. If you want to make some profit, you must reduce the misjudgment. The judgment of the deflection yoke is nothing more than the resistance value and the appearance. If you look at the appearance, you must remove the deflection from the picture tube. There are several things to remove. Special attention: First, the color is pure (color circle), the deflection yoke should remember the position, whether it is bad or not, after loading it back, the color is the same as before, otherwise, the customer said that the money is not good! ! Second, some deflection coils are glued very firmly. Be careful when removing them. Otherwise, it will be dangerous to damage the picture tube. First, use a blade to gently cut along the picture tube glass. Do not cut along the deflection coil, otherwise it will easily scratch the inside enameled wire! ! ! To a certain extent, the amount of resistance is such that some new and old maintenance personnel can't figure it out. How much resistance is normal? In reality, the deflection resistance of the line is in 1---10 Euros. (HD 1---5 Europe, ordinary 5 - 10 ohms or so), the resistance value is normal, even if there is a short circuit inside the internal, the resistance is 1 ohm, we are difficult to determine, I believe that there is very little which has exactly the same deflection to compare Right? Therefore, in the absence of reference, we have to find a reference, that is itself! The line deflection is generally able to have a higher inductance and will be wound in parallel with multiple enameled wires, and most of the short circuits are present in one or two of them. This gives us the opportunity to refer to the comparison. First, the end of the deflection is welded, and each will be An enameled wire is separated, and then each resistance is measured. Normally, the resistances are all the same, all of which are more than ten or more than twenty ohms. If a certain resistance drops significantly or opens, it directly indicates that the deflection yoke is damaged because Now the deflection has series and parallel, the two ends of the series must be separated, and the series connection points (middle) do not need to be disassembled. According to the above method, each coil is accurate. The above methods have accurately judged many cases in the application, and will not be deflected. Remove it, save a lot of trouble, send it out for everyone to share, I hope that a little help to the friends who are still confused, here has been used successfully, but also can not see the appearance.