This manual contains information for servicing YOKOGAWA’s DAQSTATION CX1000/ CX2000. Check the serial number to confirm that this is the correct service manual for the instrument to be serviced. Do not use the wrong manual. Before any maintenance and servicing, read all safety precautions carefully. Only properly trained personnel may carry out the maintenance and servicing described in this service manual. This manual is meant to be used by qualified personnel only. Make sure to read the safety precautions at the beginning of this manual as well as the warnings and cautions contained in the chapters relevant to any servicing you may be carrying out. This manual contains the following chapters. 1 Principles of Operation Provides an introduction and safety considerations. 2 Testing Explains the tests for checking the performance of the instrument. 3 Adjustments Explains the adjustments which can be performed by users. 4 Replacing Parts Describes maintenance which can be performed by users. 5 Troubleshooting Presents procedures for troubleshooting and how to proceed in case parts need to be replaced. 6 Schematic Diagram Provides a system configuration diagram. 7 Customer Maintenance Parts List Contains exploded views and a list of replaceable parts. 8 Procedures for Disassembly (CX1000) Lists the steps required to remove parts from the instrument. Specifications are not included in this manual. For specifications, refer to IM 04L31A01-01E or IM 04L31A01-03E.