48
Disassembly and Repair Procedures
Welch Allyn CP 100 and CP 200 Electrocardiograph
Introduction
These procedures cover CP 200 and CP 100 electrocardiograph disassembly for sub-
assemblies and board removal. Unless otherwise noted:
•
The procedure is the same for both units.
•
The assembly procedure is the reverse of the disassembly procedure.
Screws
Torque Specs
The Following are recommended torque specs for all screws and hex nuts..
Caution
Perform all repair procedures at a static-protected station. Observe
recommended screw torque specifications, especially with screws that secure
directly into plastic standoffs.
WARNING
The battery can deliver currents sufficient to cause serious personal
injury and to damage the electrocardiograph. When opening the
electrocardiograph for any reason, always remove and disconnect the battery
immediately, before proceeding with disassembly.
Caution
To avoid mismatching screws and holes, keep the screws for each
piece with the piece as you remove modules, circuit assemblies, and other
components.
Table 6. Torque Specifications s
Qty
Location
Part Number
Type
Torque (English)
Torque (Metric)
1
Paper Drive Gear
700091
Set Screw
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
4
Paper Cover Latch
711776
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
2
Drive Motor
700140
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
1
Drive Motor Gear
700091
Set Screw
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
3
Gear Box Assembly
711776
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
2
Paper Sensor Board
711776
Machine
3.5 +/- .25 i lbf-in
395 + /- 28 mN-m
2
Print head mount
700118
Shoulder Screw
4 +/- .25 lbf-in
452 +/- 28 mN-m
1
Ground to Shoulder Screw
106137-1
Hex nut
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
3
Paper Guide
711776
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
2
Ground Plug
102-0001
Hex Nut
16 +/- .25 lbf-in
1.81+/- .028 N-m
4
Power Supply
106124-4
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
5
Main PCB
106124-4
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
4
LCD Assembly / Bracket
106140-3
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
2
Inverter Board
200076-1
Thread-Forming
1 +/- .25 lbf-in
113 +/- 28 mN-m
5
Function Key Board
106124-4
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
13
QWERTY Keyboard
106124-13
Thread-Forming
1 +/- .25 lbf-in
113 +/- 28 mN-m
4
Printer Assembly
703247
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
8
Housing
703247
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
2
Battery Cover
703247
Machine
3.5 +/- .25 lbf-in
395 + /- 28 mN-m
Summary of Contents for CP 100
Page 6: ...vi Contents Welch Allyn CP 100 and CP 200 Electrocardiograph ...
Page 7: ...1 1 Safety Summary Introduction 2 Symbols 2 Servicing the Electrocardiograph Safely 4 ...
Page 34: ...28 Overview Welch Allyn CP 100 and CP 200 Electrocardiograph ...
Page 47: ...4 41 Troubleshooting Problem Solving Suggestions 42 Limited Warranty 45 Service Policy 46 ...
Page 82: ...76 Field Replaceable Parts Welch Allyn CP 100 and CP 200 Electrocardiograph ...
Page 90: ...84 Appendix C Software Updates Welch Allyn CP 100 and CP 200 Electrocardiograph ...
Page 91: ...D 85 Interconnect Diagrams CP 200 Interconnect Diagram 86 CP 100 Interconnect Diagram 87 ...
Page 93: ...Service Manual Appendix D Interconnect Diagrams 87 CP 100 Interconnect Diagram ...
Page 94: ...88 Appendix D Interconnect Diagrams Welch Allyn CP 100 and CP 200 Electrocardiograph ...
Page 95: ......