Introduction

Use this guide to Remove or replace the rear housing of your Welch Allyn 6000 series Connex vital signs monitor.

PLEASE NOTE: This repair guide was developed by the iFixit team based on Welch Allyn's own service manual. Neither iFixit nor this repair guide is endorsed by or affiliated with Welch Allyn.

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  • Unplug the AC power connection cable.

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Image 1/3: Always grasp the hose by the connector. Do not pull on the hose itself. Image 2/3: Pull the connector away from the connector port. Image 3/3: Pull the connector away from the connector port.
  • Place your thumb and forefinger on the blood pressure (NIBP) hose connector. Squeeze the side tabs until the connector releases.

    • Always grasp the hose by the connector. Do not pull on the hose itself.

  • Pull the connector away from the connector port.

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Image 1/3: Always grasp the cable by the connector. Do not pull on the cable itself. Image 2/3: Pull the connector away from the connector port. Image 3/3: Pull the connector away from the connector port.
  • Place your thumb and forefinger on the Pulse oximetry (SpO2 or combined SpO2/SpHb) cable connector. Squeeze the side tabs until the connector releases.

    • Always grasp the cable by the connector. Do not pull on the cable itself.

  • Pull the connector away from the connector port.

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  • Grasp the temperature probe and pull it up to remove it from the monitor.

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  • Remove the cover of the temperature module by pressing the tab and sliding the cover to the right.

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  • Depress the spring tab on the temperature probe cable connector and withdraw it from the probe port.

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Image 1/1: Loosen the captive Phillips #2 screw securing the monitor to the stand.
  • Remove the flathead screw on the USB networking door.

  • Loosen the captive Phillips #2 screw securing the monitor to the stand.

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Image 1/1: You may have to lift the monitor slightly to allow the door to swing out from the stand mount.
  • Holding the monitor securely, open the USB networking door.

    • You may have to lift the monitor slightly to allow the door to swing out from the stand mount.

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  • Detach any accessory USB cables from USB ports on the monitor.

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  • Slide the monitor off of the stand tray.

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Image 1/3: Insert a coin into the slot and push to open. Image 2/3: Choose a coin that fits comfortably into the slot. Image 3/3: Remove the battery cover.
  • Place the monitor upside down on a clean surface.

  • Insert a coin into the slot and push to open.

    • Choose a coin that fits comfortably into the slot.

  • Remove the battery cover.

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  • Use the plastic label to remove the battery from its recess.

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Image 1/2: Remove the four Phillips #2 screws (labeled 14 in the service manual) from the rear housing. Image 2/2: Remove the four Phillips #2 screws (labeled 14 in the service manual) from the rear housing.
  • Open the communications door to access the lower left-hand rear housing screw.

  • Remove the four Phillips #2 screws (labeled 14 in the service manual) from the rear housing.

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Image 1/2: '''Do not''' attempt to separate the rear housing from the monitor, it is still attached with several cables. Image 2/2: '''Do not''' attempt to separate the rear housing from the monitor, it is still attached with several cables.
  • With the handle/alert bar facing you, begin to lift the rear housing from the left side, holding the right side securely.

  • Do not attempt to separate the rear housing from the monitor, it is still attached with several cables.

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  • Support the rear housing while you disconnect the cables in the following steps.

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  • Disconnect the fan cable (labeled connector A in the service manual) from its socket in the power supply.

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  • Unplug the small USB connector from its socket (labeled J4 in the service manual).

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Image 1/3: '''Only''' pull on the connector itself and not the socket. This connection is very tight, work the connector slowly and gently. Image 2/3: '''Only''' pull on the connector itself and not the socket. This connection is very tight, work the connector slowly and gently. Image 3/3: '''Only''' pull on the connector itself and not the socket. This connection is very tight, work the connector slowly and gently.
  • Disconnect the communications power cable from its socket (labeled J50 in the service manual).

  • Only pull on the connector itself and not the socket. This connection is very tight, work the connector slowly and gently.

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  • Unplug the large USB connector from its socket (labeled J8 in the service manual).

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  • Press the tab on the ethernet cable and unplug it from its socket (labeled J9 in the service manual).

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  • The following connector requires two hands to disconnect. Flip the rear case over, and lay it on its back to gain access to the power supply cable.

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Image 1/3: Insert the flat end of a spudger down into the power supply cover between the socket clip and the power supply connector. Image 2/3: Insert the flat end of a spudger down into the power supply cover between the socket clip and the power supply connector. Image 3/3: Insert the flat end of a spudger down into the power supply cover between the socket clip and the power supply connector.
  • The power supply cable is secured by an interlocking connector that must be held open to unplug the connector.

  • Insert the flat end of a spudger down into the power supply cover between the socket clip and the power supply connector.

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  • Grasp the power supply cable firmly and lift both it and the spudger from the channel in the power supply housing to unplug the connector.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

Sam Lionheart

Member since: 10/18/2012

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