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1, “ voltage adjusts electric current of ” , “ adjusts ” all Si adjusts right, all be absent null, “ is pressed too adjust ” also Si adjusts considerably right, power source still does not have voltage or voltaic output, and lamp of ” of ” of “ constant voltage, “ constant current all Si illumes, this kind of condition should apply for approval maintenance technician is checked.
2, if open mains switch, do not listen to what there is relay inside machine to suck combine sound, the number shows the watch reachs all sorts of indicator light to not have bright, demonstrative input power source communicates 220V voltage to was not entered namely inside machine, answer to be checked by maintenance technician.
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