Service and repair
Puritan Bennett™ 700 Series Ventilator System Service Manual
10070389 Rev. A
8-25
Figure 8-20. Removing harnesses/connectors from
Communications option assembly
8.6.3.4 Serial (RS-232) port hardware
(See Figure 8-19). Remove the Communications option serial port hardware as follows. Install
by reversing removal procedure.
1.
Remove the Communications option assembly and disconnect the ribbon cable
(Section 8.6.3).
2.
From the outside of the Communications option plate, use a 3/16-in. open-end wrench
to remove the four female screws and flat washers from the two RS-232 ports.
8.6.3.5 Communications option PCB assembly
(See Figure 8-21). Remove the Communications option PCB assembly as follows. Install by
reversing removal procedure.
1.
Remove the Communications option assembly and disconnect the ribbon cable
(Section 8.6.3).
2.
Remove the serial port hardware (Section 8.6.3.4).
3.
Remove the remote alarm, nebulizer, and nurse call harnesses from their PCB connectors.
4.
From the top of the PCB, remove the two M3 x 8 screws that hold the PCB to the option
plate assembly (near the option plate).
5.
From under the PCB, remove the two M3 x 8 screws that hold the PCB to the metal shell
(part of the option plate assembly).
6.
Remove the PCB assembly from the option plate assembly.
J2
J3
J4
7-00255
Nurse call
harness/connector
Remote alarm
harness/connector
Nebulizer
harness/connector
Ribbon cable (to
Controller PCB J2)
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