
Shenzhen Comen Medical Instruments co., ltd.
Content
Chapter 1 Safety Guidance........................................................................................................1
1.1 Safety Information ....................................................................................................1
1.1.1 Danger...............................................................................................................1
1.1.2 Warnings ...........................................................................................................2
1.1.3 Cautions ............................................................................................................4
1.1.4 Notes .................................................................................................................6
1.2 Equipment Symbols ..................................................................................................6
Chapter 2 Warranty and Service........................................................................................................7
2.1 Warranty Terms.........................................................................................................7
2.2 What is excluded?.....................................................................................................7
2.3 Service Procedure......................................................................................................8
2.4 Fill in the Service Claim Form (SCF).......................................................................8
2.5 Send COMEN the SCF and Select a Solution...........................................................8
2.6 Obtain the RMA Form ..............................................................................................9
2.7 Send the Parts to COMEN ........................................................................................9
2.7.1 Contact Information ........................................................................................10
Chapter 3 Principle introduction.....................................................................................................11
3.1 CM300 system principle block diagram .................................................................11
3.2 CM300 Module Introduction ..................................................................................11
3.2.1 Main board (2410 core board + CM300 bottom board)..................................11
3.2.2 3.2.2CM100_300 ECG Board.........................................................................12
3.2.3 R-type transformer:.........................................................................................13
3.2.4 LCD Adapter Board ........................................................................................13
Chapter 4 Trouble Shooting............................................................................................................14
4.1 Introduction.............................................................................................................14
4.2 Part Replacement ....................................................................................................14
4.3 Checking Software Version.....................................................................................14
4.4 Checking Technical Alarms.....................................................................................14
4.5 Troubleshooting Guide............................................................................................15
4.5.1 4.5.1 Failure to power on with AC supply ......................................................15
4.5.2 Failure to power on with battery .....................................................................15
4.5.3 4.5.3 White or Black Screen............................................................................15
4.5.4 Abnormal screen display.................................................................................16
4.5.5 No ECG output from certain lead. ..................................................................16
4.5.6 ECG disturbance. ............................................................................................16
4.5.7 Electromyograhic disturbance.........................................................................17
4.5.8 Unstable baseline ............................................................................................17
4.5.9 Partial buttons or all buttons failure................................................................18
4.5.10 Print problem...................................................................................................18
Chapter 5 Performance Verification................................................................................................20
5.1 Safety Test...............................................................................................................20
5.2 Performance Tests....................................................................................................20