9 Anesthetic Gas Module Repairing the Anesthetic Gas Module
246
Replacement
To replace the main PC board (refer to Figure 69):
1 Ensure that the module is switched off and isolated from the mains power supply.
2 Carefully place the main PC board on its mounting in the Anesthetic Gas Module so that the 6
locating holes are aligned with the threaded bores.
3 Using a cross-tipped screwdriver, replace the 6 screws and washers (10) securing the main PC
board to its mounting, and replace the cable clamps.
4 Replace the connector (9) to the power LED.
5 If the O
2
sensor is present, replace the flat-cable connector (7) to the O
2
sensor PC board (or
directly to the O
2
sensor). Verify the O
2
jumper settings as described in “Jumpers” on page 103.
6 Replace the flat-cable connector (6) to the agent ID head.
7 Replace the flat-cable connector (5) to the RS232 connector.
8 Replace the flat-cable connector (4) to the IR measurement head.
9 Replace the power connectors (3) that connect the main PC board to the fan, pump, solenoid #1
and solenoid #2.
10 Replace the main PC board connector (2) to the power supply unit.
11 Refit the pneumatic tubing to the pressure transducer (1). Check that all tubing is tightly
connected and show no signs of damage.
12 Replace the top-cover cable (8) to the PC board.
NOTE After replacing the main PC board, check that all flat-cable connectors are firmly seated and show no
signs of damage.
Verify the O
2
jumper settings as described in “Jumpers” on page 225.
Make a flowrate check as described in “Performance Flowrate Check” on page 55.
13 Replace the top cover of the module. Ensure that the top cover jumper (JP7) is set to “closed”.
14 Do a configuration check in service mode (Agent-ID, O
2
sensor).
Now perform the performance checks described in the “Test and Inspection Matrix” on page 262.
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