论文部分内容阅读
一台YANION牌CD—90激光唱机,接通电源,机器发出“哒哒”声,装入唱片放唱,显示屏显示“disc”,按OPEN键后,托盘退出但唱片仍在转动。打开外壳检查,激光头有红光射出,物镜也工作正常,径向电机推动激光头移动故发出“哒哒”声。检修时测量各组正负电源均正常,不久后发现系统控制CXP1010AQ发烫,故怀疑该IC损坏造成系统控制失常。拔下插件,因该IC很少见,现有CXP1011Q直接
A YANION CD-90 CD player, powered on, the machine making a “da da” sound, loading the record and singing, the display showing “disc”, press the OPEN button, the tray exits but the record still rotates. Open the shell inspection, the laser head has red light, the objective lens is also working properly, the radial motor to promote the laser head movement so issue “da da” sound. During the inspection, the positive and negative power supply of each group was normal. Shortly after the system control was found, the CXP1010AQ was hot, so it was suspected that the IC was damaged and the system control was abnormal. Unplug the plug-in, because the IC is very rare, the existing CXP1011Q directly