Canon CXDI-31, Service Manual

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3. CXDI-31 Imaging Unit
CONTENTS
1. Unit Diagram...............................................................................................................................1
2. Function .......................................................................................................................................2
2.1. LANMIT UNIT ....................................................................................................................2
2.2. PCB-AD................................................................................................................................3
2.3. CST
AD-IF Board.................................................................................................................3
2.4. DC/DC Conversion Board ....................................................................................................4
3. Repair Guide ...............................................................................................................................5
3.1. Notes .....................................................................................................................................5
3.1.1. Notes on removing the rear cover .................................................................................5
3.1.2. Notes on the TABs exposed on the internal sensor unit ...............................................6
3.1.3. Notes on installing the rear cover..................................................................................7
3.1.4. Tightening screws when replacing parts .....................................................................11
3.2. Preparations for replacing parts ..........................................................................................12
3.2.1. Replacing the sensor rear cover ..................................................................................12
3.2.2. Replacing the sensor cable..........................................................................................14
3.2.2.1. Replacing the new sensor cable(BG7-3055).......................................................14
3.2.2.2. Replacing the former sensor cable with the new sensor cable (BG7-3055)........17
3.2.3. Replacing the DC/DC conversion board.....................................................................19
3.2.4. Replacing the CST A/D-IF board ...............................................................................21
3.2.5. Replacing the 31 PCB-AD2........................................................................................24