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1.因行振荡和行激励级电路故障而引起的“三无”故障(1)行振荡启动电阻损坏而引起的“三无”故障:例如:东芝 TA 两片机心彩电(如:北京8306型、长城JTC472型、黄河 HC47—Ⅲ型、金星 C473型等),行振荡启动电阻 R409(6.8 kΩ/3w)损坏而引起的“三无”
1. Due to line oscillation and line excitation circuit problems caused by the “three no ” fault (1) line oscillation caused by damage to the start resistor “three no ” failure: For example: Toshiba TA two machine heart color TV Such as: Beijing 8306 type, the Great Wall JTC472 type, the Yellow River HC47-Ⅲ type, Venus C473 type, etc.), the oscillation caused by the start-up resistor R409 (6.8 kΩ / 3w)