Welch Allyn CP 100 Service Manual

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

Welch Allyn CP 100 Specifications

General

Brand	Welch Allyn
Model	CP 100
Category	Medical Equipment
Language	English