从互联网上可以查到许多宝贵的维修经验和数据,利用好网络资源,能使维修工作取得事半功倍的效果。 维修一台OLITI牌15“彩显时,连续烧了几只行管后,怀疑行供电电路有问题,但不知道正常的行供电电压应该是多少,查了相关电路也未发现问题。顺着电路查找,发现控制行供电电压的是一只型号为WT8043的芯片,该芯片推出的时间可能 From the Internet can be found in many valuable experience and data maintenance, make good use of network resources, maintenance work can make a multiplier effect. Maintenance of a OLITI card 15 ”color display, the continuous burning of a few lines of control, the suspect line power supply circuit problems, but do not know the normal line supply voltage should be how much, check the relevant circuit also found no problem. Circuit search and found that the control line supply voltage is a model WT8043 chip, the chip launch time may