这就不得不怀疑消磁电路了。
本发明方案采用全电子软开关接通和关断，所以使用寿命长，消磁电路在通断时没有声音。
The present invention adopts a fully electrical soft switch to conduct and switch off, thereby, the service life is long, and the degaussing circuit has no sound when being switched off.
抖动，说明极有可能是消磁电阻损坏，如果没有响声则可能继电器及其控制电路有问题。
Jitter, that is very likely damage degaussed resistance, in the absence of sound may be the relay and control circuit problem.
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