用电视机电源变压器代换放象机电源变压器

• 作 者: 谢宣章 田忠锐
• 出 处: 电视技术
• 发表日期: 1990年06期
• 关键词: 电源变压器 变压器损坏 全波整流 桥式整流 端接 稳压器 电视技术 底壳 双端

VIP-1000型、777型放象机电源变压器损坏后,一般很难买到,且价格较昂贵,我们用电视机电源变压器代换,使用数月后工作仍正常,且价格便宜,购买方便,现将代换方法介绍于下。放象机电源变压器初级有三个抽头0-220-240V,根据电网电压不同而调节;次级是带中心抽头的变压器,不含中心抽头的两端接桥式整流,供给整机17.5V电压,中心抽头和其余两端组成全波整流电路,通

VIP-1000 type, 777 type player power transformer damage, the general is difficult to buy, and the price is more expensive, we use the TV power transformer substitution, use a few months after the work is still normal, and the price is cheap, easy to buy, The substitution method is introduced below. Put the power transformer primary has three taps 0-220-240V, according to the different grid voltage regulation; secondary is with the center of the tap, without the center tap of the two ends of the bridge rectifier to supply the machine 17.5V voltage, Central taps and the other ends constitute a full-wave rectifier circuit, pass