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判断诺基亚DCT3音频IC好坏的方法比较简单,测其四组电阻即可判断出,方法如下:分别测音频D4和D8对A8的正反向电阻与正常值相比。所谓正反电阻就是先用红表笔接A8点,黑表笔接D8,
To determine the Nokia DCT3 audio IC is a good or bad way is relatively simple, measured four sets of resistance can be judged as follows: respectively measured audio D4 and D8 on the A8 positive and negative resistance compared with normal. The so-called positive and negative resistance is the first red pen then A8 point, black pen then D8,