Disassembly Instructions Repair Information
4 - 6 0070-10-0604-01 Duo™ Service Manual
4.3 Disassembly Instructions
Before disassembling the unit, perform the following:
• Turn off the unit and remove the line cord
• Remove all cables and hoses
• Remove the battery
• Perform all maintenance on a properly grounded work station.
4.3.1 Tools Needed
• Phillips Screwdriver
• 5 mm nutdriver
4.3.2 Front Housing Removal
1. Remove four (4) 3 x 30 mm Phillips panhead machine screws from the corners of the
Rear Housing.
2. Carefully separate the front and rear housings and disconnect the cables from the CPU/
Display PCB connectors P02, P03 and P07. Disconnect the NIBP tubing from the front
housing pressure fitting.
4.3.3 SpO
2
Interface Board Removal
1. Disconnect the cable from P01 on the CPU/Display pcb.
2. Remove three (3) 5mm hexnuts from their stand-offs on the SpO
2
pcb.
3. Lift the SpO
2
Interface pcb from the stand-offs.
4.3.4 SpO
2
Board Removal
1. Remove three (3) 5mm hex stand-offs from the SpO
2
Board.
2. Remove one (1) 3 x 6 mm Phillips panhead machine screw from the SpO
2
Board.
3. Lift the SpO
2
Board from the mounting bracket.
4.3.5 CPU/Display Board Removal
1. Remove four (4) 3 x 6 mm Phillips panhead machine screws from the corners of the
CPU/Display Board.
2. Lift the CPU/Display Board from the Front Housing.
4.3.6 NIBP Module Removal
1. Remove four (4) 3 x 6 mm Phillips panhead machine screws from the corners of the NIBP
module frame.
2. Lift the NIBP module from the battery housing frame.
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