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Several common troubleshooting problems for computer lights

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Computer luminaires are an important type of luminaire. In the performing arts activities, it plays a role in setting off the atmosphere, rendering the stage mood, and mobilizing the mood on the spot.
     The computer light is a kind of more sophisticated equipment. It integrates electronics, machinery and optics, and has high requirements for environment, transportation and use, so its failure rate is also high. Here, combined with the fault phenomenon, an analysis of the possible causes is made for reference by relevant personnel.
     No response at boot
     1. Is the power supply normal, and the power cord of the lamp is off?
     2. Whether the fuse of the lamp has burned out;
     3. Whether the switching power supply of the lamp has an output voltage.
     Boot does not light bulb