Samsung SCX4521F Service Manual - Page 58
Engine Shield (LIU PBA, SMPS
UPC - 635753616040
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Disassembly and Reassembly 5.18 Engine Shield (LIU PBA, SMPS) 1. Before you remove the Engine Shield, you should remove: - Scan Ass'y (Refer to the 5.9) - Middle Cover (Refer to the 5.13) 2. Unplug the all Connectors from the SMPS and LIU PBA. 4. When if only remove the SMPS, first remove the Rear Cover (refer to the 5.6) and unplug the Fuser Connector and remove the six screws securing the SMPS. Then unplug the Connector from the Main PBA and carefully release the SMPS, as shown below. LIU Cable SMPS Cable Fuser SMPS 3. Remove the six screws securing the Engine Shield and release the Harness, as shown below. Then carefully release the Engine Shield from the Actuator Feed Sensor Lever. Engine Shield (W/LIU PBA, SMPS) 5. When if only remove the LIU PBA, first remove the Rear Cover (refer to the 5.6) and remove the two screws securing the LIU PBA. Then unplug the Connector from the Main PBA and release the LIU PBA as shown below. LIU PBA Actuator Feed Sensor Lever Samsung Electronics Service Manual 5-21