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测量IC_(201)集成块(29)脚电压为零,该脚是场激励信号输出端,正常时电压为0.7V,现在电压为零,说明无场激励信号输出。查IC_(201)集成块(29)、(31)、(32)脚外围电路
The voltage of IC_ (201) integrated block (29) is measured to be zero. This pin is the output signal of field excitation signal. The voltage is 0.7V when normal and the voltage is now zero, indicating that no field excitation signal is output. Check IC_ (201) integrated block (29), (31), (32) pin peripheral circuits