Mindray Passport 5-Lead, Service Manual

Page: 287 / 544

Passport 5-Lead, 5L, LT, XG Service Manual 0070-00-0420 4 - 7
Repair Information Disassembly Instructions
e. Removal of the SpO2 Daughter Board
1. Disconnect the cables from P1 and P2 connectors.
2. Remove the four screws at the corner of the SpO2 Daughter Board and lift the
board from the shield.
f. Removal of the Nellcor SpO2 Board
1.
Remove the four screws at the corner of the shield (99).
2.
Disconnect JP1 (5) and P21 (38).
3. Remove the four screws at the corner of the SpO2 Interface Board and lift the
board from the sub-assembly.
4. Remove the three screws from the Nellcor Board (106) and lift it from the
assembly.
g. Removal of the SpO2 Interface bd. and Masimo MS-1 or Nellcor
module.
1.
Disconnect P94 from the CO2 control bd. and P606 from the CO2 input
connector.
2. Remove the four screws that secure the CO2 mounting plate. Remove the
mounting plate with CO2 module and shield.
3. To remove the Interface bd. disconnect P21, P23, and P25,and remove the four
hex standoffs that secure the Interface bd. and lift it from the assembly.
4. To remove the MS1 or Nellcor module disconnect cables form module and
remove four screws that secure module and lift it from the assembly.
h. Removal of the Interconnection Board (7)
1. Disconnect P23 (5) from the SpO2 Board and P1 from the Interconnection Board.
2. Remove the two screws securing ground straps to the board frame (26).
3. Disconnect NIBP hose (61) from the left side panel (19).
4. Remove the left side panel from the board sub-assembly.
WARNING: Extreme caution should be used when handling the flexible
Interconnection Board. Do not try to bend or straighten
components on this board, damage may occur to the
flexible circuit board!
5. Release the two board standoffs.
WARNING: In the next step, do not straighten the Interconnection
Board! Use screw access holes located on the
Interconnection Board.
6. Remove the six screws holding the IBP and ECG connectors and the one nut
securing the temperature connector. Remove board from the left side panel.
i. Removal of the Front End Board
1.
Remove the four screws securing the Front End cover (42) to the board frame
(48).
2. Remove the four screws (26) at the corners of the Front End Board.
NOTE: When installing the Front End and Interconnection Boards,
make sure all mylar shields are reinstalled.
j. Removal of the Front End Daughter Board