貼片電容壞了，不知道型號大小怎麼換？教你用這個方法輕鬆解決 #我愛電器維修

current circuit board There are more and more patch components used. But let's take a closer look at the above capacitors it's all essential But what about capacitors? It doesn't have any markings on it I don't know what its specs are I don't know its capacity while we are doing repairs If a capacitor is found to be broken because it broke Use a multimeter to be sure. There is no way to measure its capacity So what should we do at this time? share with you today This capacitor is divided into a trick to replace it First, let's look at the capacitor Its color is different and its capacity is also different First look, it looks like this capacitor is very light in color almost white And this one is a little gray And this one is darker In fact, the lighter the color of the capacitor its capacity is smaller The darker the color, the greater its capacity While we are doing maintenance It is when the capacitance is detected on the board First use the beep file of the multimeter Let's measure this capacitance if the buzzer sounds Just explain The capacitor may have broken down and shorted. what about this time You have to remove the capacitor first. measure again What if the buzzer still rings? It means that he does have a problem. The machine tool is short-circuited and broken. if there is no response Let's use the capacitance file of the optical meter to measure again. if he doesn't have any capacity Just explain The capacitor is broken inside. bad capacitor There is no way to measure his capacity with a multimeter So how to replace him What about the same type of capacitor? First of all, we must first find the vicinity of this capacitor. Find one that is the same size as it Capacitors of the same color Then take it apart and measure it with a light meter see what its capacity is After knowing its capacity Then what according to the same specification replace this capacitor can solve the problem Ok now let's actually do it First of all, turn the appearance to the beep file What about when measuring this capacitance? just this voice It means that the capacitor has broken down and short circuited. If there is no capacitance measured with capacitance files It means that his internal circuit has been broken. Now look at these two capacitors Let's measure a This capacitor with a lighter color let's see first Its capacity is 337 nanofarads Then let's measure this This one is darker We see that its capacity is 1.1 microfat Explanation, the darker the color, the larger the capacity