故障现象正常扫描时,扫描进度条突然终止,扫描不进行。错误信息:DAS数据获得错误(DAS data acquisitiorror)。故障分析与检修DAS原始数据经接口板由射频发射发射到滑环上后,由射频接受器接收,再由光缆传送到控台。所以应查清是滑环前的故障还是滑环后的故障,检查射器和接受器是 Symptom When the scan is normal, the scan progress bar abruptly terminates and the scan does not proceed. Error message: DAS data error (DAS data acquisitiorror). Failure Analysis and Maintenance DAS raw data is transmitted from the RF transmitter to the slip ring via the interface board, received by the RF receiver, and then transmitted by the optical cable to the console. Therefore, it is necessary to find out whether it is the fault before the slip ring or the fault after the slip ring. The inspection device and the receiver are