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创维2500型彩电,微处理器采用CTV222S—PRC,单片小信号处理电路采用TA8659AN,场输出电路为AN5521,伴音功放电路采用TA8200AH。创维2500和2939WF彩电的开关电源由分立元件组成。设有独立的变压器降压式副电源,待机采用继电器切断主电源AC220V供电的方式。创维2500和2939WF彩电,一是在待机控制电路设有晶闸管保护电路,外接+B高压保护和市电电压过低保护监测电路。保护电路启动时,将开/关机控制继电器释放,达到保护的目的;二是围绕视频/扫描小信号处理电路TA8659AN的輰訛輩脚(“X射线”保护端),开发设计了“X射线”过高保护电路,保护电路启动时,采
Skyworth 2500 color TV, microprocessor using CTV222S-PRC, single chip small signal processing circuit using TA8659AN, field output circuit AN5521, audio amplifier circuit TA8200AH. Skyworth 2500 and 2939WF color TV switching power supply composed of discrete components. With independent step-down transformer secondary power supply, standby power supply cut off the main AC220V way. Skyworth 2500 and 2939WF color TV, one in the standby control circuit with thyristor protection circuit, external + B high voltage protection and mains voltage is too low to protect the monitoring circuit. Protection of the circuit starts, the on / off control relay release, to achieve the purpose of protection; the second is around the video / scan small signal processing circuit TA8659AN of the corrupt ( “X-ray ” protection side), the development of the design of the “ X-ray ”high protection circuit, protection circuit starts, mining