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Today I'll introduce a consumable used in the maintenance of an electronic product

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Enamelled wire

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We also call it varnished wire

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The enamelled wire means that the surface of the copper wire is covered with a layer of insulating paint

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So that's why we call it enamelled wire

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The enamelled wire we commonly use has two specifications

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One is the wire diameter of 0.1 mm

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The other is a wire diameter of 0.01 mm

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The one on the left has a slightly thicker copper wire

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It's 0.1 mm

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The transparent large roll on the right side, the copper wire is thinner relatively

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It's 0.01 mm

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When would enamelled wire be used?

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It is mainly used for some line disconnections when we repair the motherboard

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Let's say I now have this board

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We found from the maintenance drawings that from this point to this point is connected

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But now when I use a multimeter to measure, I find that these two points are not connected

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If you want to fix this fault, you may need to replace the motherboard

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But it'll cost a lot

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We can use copper wire to reconnect the two points together

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This is where the insulating layer on the surface comes into play

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Copper wire is a conductive object

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After the line is connected, the copper wire may be connected with other components in the area passing through the circuit board, resulting in a short circuit

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Because there is an insulating layer on the surface

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it will not be connected to other components

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Just simply turn on the line it is connected to

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The thick one is 0.1 mm in diameter

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This can be connected to some power lines

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The thin one is 0.01mm

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This can be connected to some signal control circuit

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or signal transmission circuit

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So much for this,thank you for watching