Where is the source of frequent failure and maintenance of home spinning quality doors?

Common Faults and Maintenance of Shadowless Lamps
1, all lights are not on, cattle are worth the power fuse, socket and plug contact, power switch circuit, buck should be burned. Up to one million meters 220 Volt AC files check the power supply, and if the external power supply voltage, IE, one million can be found through the Ohm meter file circuit, find out how to break the specific location of the repair.
Some light bulbs are not on, and even more powerful are the lights or the broken or light garlic burn light trough eagle contact. This special mirror bulb, due to intense light emission, is 300 hours. If it has exceeded 300 hours, it is a natural wear and tear. If the new lighting is quickly burned out, except that the difference in the quality of the individual lighting is too high, you must find the reason and replace the new light bulb. The contact temperature caused by the contact with poor contact can make the contact cap height and contact good. Change the light bulb, the metal part of the lamp holder must be held to avoid damage.
3, Transformer damped short circuit, vertical surgery without light Transformer cattle installed at the bottom of the lamp holder, if not careful, Transformer water or moisture serious, it is easy to fail, found that the situation should be immediately cut off power, in the transformer drying process. Then, if there is a serious short circuit or smoke must be rewound.