蓝光主板的一些问题（Some problems with Blu ray motherboards）.docVIP

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蓝光主板的一些问题（Some problems with Blu ray motherboards）.doc

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蓝光主板的一些问题（Some problems with Blu ray motherboards）

蓝光主板的一些问题（Some problems with Blu ray motherboards） Q: elevator in self-study, learning from the beginning of the LER=17 fault, what reason, how to solve? A: the fault is caused by the lower limit of the elevator and the two gates at the same time. The solution is to adjust the distance between the lower limit and the lower gate area and ensure a gate area when the lower limit action is performed. Q: field elevator after learning, as long as running to the top, there will be no 18 fault, what reason, how to solve? A: examines layer data in microcomputer parameters and finds no top floor data. Well one examination found the upper limit installation is too low, resulting in self-learning is not yet in the top gate area hit the upper limit, the system does not distinguish the fault. Move up the limit and learn from yourself to solve the problem. Q: the elevator stops at the top floor and has a poor sense of comfort and does not open the door. What could be the cause? A: self-study, into the top gate area, did not enter the double door area hit the upper limit, will cause the length of the door area did not learn, and normal operation, parking always hit the upper limit, parking comfort is not good, and not open the door. Move up the limit and learn from yourself to solve the problem. Q: elevator at the end of the 20 fault occurred, the causes and how to solve? A: terminal station position changes, such as the original end station distance is short, is longer, no self learning, prone to No. 20 fault. When the end station position changes, should re learn. Q: elevator from learning to the upper end of the switch, reported No. LER23 fault, what is the reason? A: LER23 is no pulse feedback fault number 1, such as the use of multi speed elevator control method, in the frequency converter is not properly set the crawl speed, the fault occurs. 2, the main board of the pulse feedback, input loop and wiring problems, the fault will occur. Q: how to deal with abnormal problems wh