Rehabilitation of a Tsinghua Tongfang LC-27B78 LCD TV produced by Tongfang Co., Ltd. The fault phenomenon is that the red light of the TV indicator can be lit. After the second power-on, the green indicator light flashes and then the red light is turned on. . The disassemble inspection found that the voltages output by the IP board were normal after the second boot. But after a while, both 12V and 5V disappeared, and PS-ON disappeared. Only 5VSTB is output. It is estimated that there is a short circuit in the load. When the upper screen line is unplugged and the test machine is turned on, the backlight is normally lit, and the white screen has a sound. The fault is determined on the side panel of the screen. After the screen is removed, the side panel of the viewing screen is V260B1-X02. It is quickly detected that the fault is caused by the breakdown of the filter capacitor C76 of the VGH voltage. After the replacement, the test machine is OK. Ring Type Connecting Terminals Ring Type Connecting Terminals,Terminals,Connecting Terminals Taixing Longyi Terminals Co.,Ltd. , https://www.longyicopperterminals.com