Canon MF4690 Service Manual - Page 102
Preparation for Removing the SCNT Board
UPC - 013803076820
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Chapter 9 Make sure to attach the link stopper [2] after attaching the right cover. If attaching the link stopper while attaching the printer cover, it may drop inside the machine. 4) With the printer cover [1] opened, detach it upward. F-9-15 9.3.7 Operation Panel Unit 9.3.7.1 Removing the Control Panel Unit 1) Remove the 4 screws [1] and the 2 claws [2]. F-9-18 6) Remove the Analog processor PCB. 7) Remove the SCNT board [1]. - 9 connectors [2] - 4 flatcables [3] - 9 screws [4] 0016-4991 F-9-16 2) Disconnect the connector [1], and remove the control panel unit [2]. 9.3.8 SCNT Board F-9-17 9.3.8.1 Preparation for Removing the SCNT Board 0016-4992 Outputting report Before replacing the SCNT board, output and record the report for the information such as the user setting and the setting of the service mode. Service mode > REPORT Initial setting/registration > Report setting > Report output 9.3.8.2 Removing the SCNT Board 0016-5001 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 4) Remove the rear cover. 5) Remove the frame [1]. - 11 screws [2] F-9-19 9.3.8.3 Actions At Replacing the SCNT Board 0016-5066 Outputting report Before replacing the SCNT board, output and record the report for the information such as the user setting and the setting of the service mode. Service mode > REPORT Initial setting/registration > Report setting > Report output After replacing the SCNT board, enter the user data and the service data according to the report. Changing the jumper connector When replacing the SCNT board, change the position of the jumper connector to ON. * The SCNT board is shipped with the jumper connector of the lithium battery OFF. 9.3.9 DCNT Board 9.3.9.1 Preparation for Removing the DCNT Board 0016-5004 1) Remove the front cover. 2) Remove the right cover. 3) Remove the left cover. 9.3.9.2 Removing the DCNT Board 0016-5005 1) Remove the 2 guides [1] in the direction of the arrow. 9-4