4 Parts Replacement RJ-901C/RJ-900C Maintenance Manual4-646. To reassemble the unit, reverse the removal procedure.4.10 Replacement of Cable Guide Section Components4.10.1 Replacing CR Board AssemblyNOTEBefore replacing CR board assembly, remove the following covers.• Top cover: "4.2.6 Removing Top Cover" p.4-13• CR board cover: refer to the instructions up to step 4 in "4.6.1 Replacing Print Head" p.4-37.1. Remove the following connectors from the CR board assembly.CAUTIONWhen connecting or removing the FFC type cables to the CR board assembly connector,always pull or push the cables perpendicularly to the connector.Pulling or pushing the wire slantwise may damage/short/break the terminals in theconnectors, resulting in a breakdown of the on-board elements.Table 4-4 Connectors to CR Board AssemblyNo. ConnectorNo.# ofpinsColor Connect to Remarks1 J204 31 pins Black Print head CN12 J205 31 pins Black Print head CN23 J201 31 pins Black Main board assembly J114 J202 31 pins Black Main board assembly J105 J203 31 pins Black Main board assembly J96 J207 4 pins White CR_ENC assembly7 J206 2 pins White Cutter solenoid assembly8 J208 4 pins Black P_EDGE sensor assembly9 J209 3 pins White PG origin point sensorassembly
