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芯片查询网ichaiyang 2024-05-07 22:10 121
1, first turn the multimeter to the diode measurement file;2, the black watch pen is connected to D (drain , the red watch pen is connected to S (source , at this time, there shoul...

How to test vip12a chip?

1, first turn the multimeter to the diode measurement file;

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2, the black watch pen is connected to D (drain), the red watch pen is connected to S (source), at this time, there should be a pressure drop of 0.2~0.5 normally, and the multimeter displays figures between 0.2~0.5;

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3, the black watch pen is connected to S (source), the red watch pen is connected to D (drain), this should have no pressure drop, the multimeter shows OL or 1;

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4. The black watch pen is connected to S (source), and the red watch pen is loosened after touching G (grid);

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5, the black watch pen does not move, and then use the red watch pen to connect D (drain), there should be a small voltage drop (multimeter shows a number of about 0.1 then this crystal field effect tube is good;