理光MPC8002一直報“關闭抽屉單元”

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症状故障:Always Alam“Please Close the Drawer Unit”            一直報“關闭抽屉單元”原因1. Drawer Knob Sensor、Drawer Set Sensor、Drawer Lock Sensor、Drawer Lock Moter defective。抽屉旋轉傳感器、抽屉放置傳感器、抽屉锁定傳感器、抽屉锁定電機故障。2. DUB、PFB、IOB defective。DUB、PFB、IOB故障。3. Communication (Input/Output to PCB) defective。输入\输齣设備至PCB之间連接故障。
維修過程
1. Using SP5803 to detected Drawer Knob Sensor、Drawer Set Sensor、Drawer Lock Sensor,they were normal;使用SP5803測試抽屉旋轉傳感器、抽屉放置傳感器、抽屉锁定傳感器、抽屉锁定電機都正常;2. Using SP5804、1040 to detected Drawer Lock Moter, its normal also;使用SP5804、1040測試抽屉锁定電機也正常;3. Repalced DUB、PFB、IOB one by one,Failure still;依次更换DUB、PFB、IOB後,故障未排除;4. I found out Drawer Unit Set Switch1\2 on the framework from the PtoP Diagram,but they were not found in SP5803;根據PtoP资料發現機架上還有抽屉單元放置1、2開關與故障相關,但在SP5803列表中未找到该測試項目;

5. Measurement connection was normal(Drawer Unit Set Switch1\2 to ECO);确認抽屉單元放置1、2開關至ECO連接線束正常;6. Confirmation was bad contact by multimeter(Drawer Unit Set Switch1\2)。使用萬用表确認抽屉單元放置1、2開關斷路造成该故障。解決方案 Machine return to normal by Replaced the Drawer Unit Set Switch 1\2。更换抽屉單元放置1、2開關後故障排除。

標簽: #6502 #8002 #關闭抽屉單元 #開關

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