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日本索尼公司设计并生产的KV-2965MTJ型彩色电视机为全制式国际线路。其电源部分必用自激并联型开关稳压电路,在110～240V(50～60Hz)市电范围内均能正常工作,该电源电路输出主电压+135V与22V、14V两组辅助电压,且设有过流、过压、防开机冲击、过载等保护措施,当电源电路中某元器件损坏,或市电电压过高、过低,或负载过重时,能立即进入保护状态,防止故障范围扩大而造成其它元器件的损坏。现结合维修实例介绍该
Japan’s Sony KV-2965MTJ color TV designed and manufactured by the company for the whole system of international circuits. The power supply part must be self-excited parallel switching regulator circuit, 110 ~ 240V (50 ~ 60Hz) within the scope of electricity can work normally, the power circuit output main voltage +135 V and 22V, 14V two auxiliary voltage, and set Over-current, over-voltage, anti-boot impact, overload and other protective measures, when a power circuit damage in a component, or mains voltage is too high, too low, or overloaded, can immediately enter the protection state, to prevent the failure range Expand and cause damage to other components. Now with the maintenance of examples of the introduction