A siemens customer service engineer (cse) was dispatched to the customer site for another issue, and the smoking incident occurred as the cse was replacing a 24 volt fuse on the bcs xp system.The cse observed that the smoke was emitting from two circuit boards on the system (pca hc11 and pca mpos).The cse replaced the two affected boards, which resolved the issue.The cause of the event was the two defective circuit boards.The system is performing according to specifications.No further evaluation of this device is required.
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