51be5b86f2689b53fc0943dc7bc53b56f3490c3a
service-dat/qc-dat/qc-dat.md
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| 1 | 1 | |
| 2 | 2 | # qc-dat.md |
| 3 | 3 | |
| 4 | -## 电源类 |
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| 5 | - |
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| 6 | -- 检测电源是否短路: 万用表测试 输入端, 阻值是多少, 过小的话是短路 |
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| 7 | - |
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| 8 | -## 新号端 |
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| 9 | - |
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| 10 | -RS485 |
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| 11 | -And also measure resistance between RS485 A and B |
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| 12 | -A bad board will have a clear values outside the normal range |
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| 13 | - |
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| 14 | - |
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| 15 | - |
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| 16 | 4 | ## ref |
| 17 | 5 | |
| 18 | 6 | - [[qc]] |
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