Welch Allyn Connex Vital Signs Monitor 6000 Power Supply Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

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Sections

Stand
10 steps
Battery
2 steps
Rear Housing
11 steps
Power Supply
5 steps

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Introduction

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.

What you need

Step 1

              Stand

Unplug the AC power connection cable.

Unplug the AC power connection cable.

1024

Step 2

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.

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.

Step 3

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.

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.

Step 4

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

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

Step 5

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

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

Step 6

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

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

Step 7

Remove the flathead screw on the USB networking door.
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.

Step 8

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.

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.

Step 9

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

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

Step 10

Slide the monitor off of the stand tray.

Slide the monitor off of the stand tray.

Step 11

              Battery

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.

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.

Step 12

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

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

Step 13

              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.

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.

Step 14

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.

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.

Step 15

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

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

Step 16

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

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

Step 17

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

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

Step 18

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.

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.

Step 19

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

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

Step 20

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

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

Step 21

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.

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.

Step 22

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.

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.

Step 23

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.

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.

Step 24

              Power Supply

Remove the four T10 Torx screws from the power supply cover.

Remove the four T10 Torx screws from the power supply cover.

Step 25

Remove the power supply cover.

Remove the power supply cover.

Step 26

Unplug the AC power harness connectors from the IEC connector with a pair of pliers.
During reassembly connect green to ground, blue to line (L), and brown to neutral (N).

Unplug the AC power harness connectors from the IEC connector with a pair of pliers.

During reassembly connect green to ground, blue to line (L), and brown to neutral (N).

Step 27

Disconnect the ground connector from the ground plate.
During reassembly plug the ground cable from the IEC connector onto the ground plate in the position closest to the IEC connector. Ensure that the green ground wires are routed over the blue and brown wires.

Disconnect the ground connector from the ground plate.

During reassembly plug the ground cable from the IEC connector onto the ground plate in the position closest to the IEC connector. Ensure that the green ground wires are routed over the blue and brown wires.

Step 28

Use the flat end of a spudger to lift the power supply up off the posts in the rear housing.
Lift and remove the power supply from the rear housing.
Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.
During reassembly ensure that the rubber grommet on the AC power harness is in the slot in the power-supply cover.
Ensure that the green ground wires are secured under the power-supply cover.

Use the flat end of a spudger to lift the power supply up off the posts in the rear housing.

Lift and remove the power supply from the rear housing.

Be very careful not to touch the capacitor leads or any exposed solder joints on the back of the power supply. Only handle the board by the edges.

During reassembly ensure that the rubber grommet on the AC power harness is in the slot in the power-supply cover.

Ensure that the green ground wires are secured under the power-supply cover.

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

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