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维修一台TCL--AT2927U彩电,该机原始故障为枕形失真,经检查是枕校管脱焊,补焊后试机图像正常。由于该机购买时间较久,估计元件虚焊较多(现在电视机的通病),为了一次性搞定虚焊故障,仔细检查发现此机在行/场输出电路有多处虚
Maintenance of a TCL - AT2927U color TV, the original failure of the aircraft pincushion distortion, the inspection is pillow school tube off welding, welding machine after the test image is normal. As the machine to buy more time, it is estimated component Weld more (now the common problem of the TV), in order to get a one-time Weld failure, carefully check the machine found in the line / field output circuit has multiple weaknesses