一、常用维修方法液晶(LCD)彩电电源板的维修方法与CTR(显像管)彩电电源电路的维修方法基本相同。除了采用常见的“直观检查法”、“电阻测量法”、“电压测量法”、“波形测量法”等方法外,根据液晶彩电电源板的电路结构和特点,还可采用以下几种方法。1.外接电压法“外接电压法”就是将机外或机内适合需求的电压或信号,接入电源板相应的位置,为相关电路供电,根 First, the commonly used methods of repair LCD (LCD) TV repair power supply and CTR (CRT) color TV power supply circuit repair methods are basically the same. In addition to the common methods of visual inspection, resistance measurement, voltage measurement, and waveform measurement, according to the circuit structure and characteristics of the LCD color TV power supply board, You can also use the following methods. 1. External voltage method “external voltage method” is the machine or machine suitable for the needs of the voltage or signal access to the corresponding position of the power supply board for the relevant circuit power supply, root