[Case study of detecting and maintenance of AB 7300PCR]

The AB 7300 Real-time PCR Systems in our hospital have been detected malfunction for three times in a short term. The detection indicated the major reason for the malfunction attributed to the fuse of the solder of the COVER at the same position with the serial number 4344490 D1. This article explicitly introduces how to detect and maintain this equipment. It serves as a good reference for colleagues. Meanwhile the author raises five issues for further exploration and discussion.