用全联行输出代换熊猫电调机行输出

• 作 者: 赵邦友
• 出 处: 家电检修技术
• 发表日期: 1996年05期
• 关键词: 行输出 电原理图 全联 高频头 供电电压 调机 脉冲电压 直流电压 整流滤波 经查

一台电子调谐熊猫牌3403型电视机的行输出损坏,因手头无同规格行输出代换,故采用44cm(17英寸)全联行输出变压器代换,试机收不到任何电视信号。经查,此机的高频头调谐供电电压仅有4V左右,按电原理图应标有32V直流电压,而该电压是通过行输出的③、④脚绕组的脉冲电压经整流滤波后获得。而

An electronic tuning panda card 3403 TV line output damage, due to the hand of the same specification line output substitution, so the use of 44cm (17 inches) the entire line output transformer substitution, the test machine can not receive any television signal. The investigation, the tuner tuner supply voltage only 4V or so, according to the electrical schematic should be marked with 32V DC voltage, and the voltage is output through the line ③, ④ pin winding voltage obtained by the rectifier filter. and