Welch Allyn Connex Vital Signs Monitor 6000 Troubleshooting

This section provides troubleshooting help, also found in the Welch Allyn Connex® Vital Signs Monitor 6000 Series Service Manual starting on page 29.

Symptoms and solutions: These tables list symptoms you might observe, list possible causes, and suggest actions that may eliminate the problem.

Technical alarm messages: These tables list messages generated by the device software when a problem is detected. The tables explain possible causes and suggest actions that can resolve the problem. 
These tables can help you diagnose and fix a problem. They do not replace basic troubleshooting skills. You must still trace the source of the problem to the board or module level to decide the best course of action. Welch Allyn does not support component-level repair to the board or module. For available replacement parts, see “Field Replaceable Units.” 
WARNING Do not perform troubleshooting on a device that is emitting smoke or exhibits other signs of excessive overheating. Disconnect the device from AC power and call Welch Allyn Technical Support immediately. 
CAUTION Replace parts, components, or accessories only with parts supplied or approved by Welch Allyn. The use of any other parts can lead to inferior device performance and will void the product warranty.

A new battery was installed

• Connect AC power to wake up the battery.

The AC power is disconnected

• Connect AC power.

The power cord is defective

• Connect AC power.

The battery is discharged

• Replace the power cord.

The power button is defective

• Replace the right side panel and power button.

An internal connection is faulty

• Check the power-flex cable connection at J6 on the main board.

• Check the AC power harness connections from the IEC connector to the power supply.

• Check the power harness from the power supply J2 to J30 on the main board.

• Check the battery power harness from J2 on the battery connector board to J29 on the main board.

The power supply is defective

• Check the output voltage on the power supply. The voltage should be 15 V ± 0.45V DC. If it is not, replace the power supply.

The battery is defective

• Charge the battery for 5 hours. If the battery icon on the display still shows an empty battery symbol, replace the battery.

The main board is defective

• Replace the main board.

The battery is defective

• Charge the battery for 5 hours. If the battery icon on the display still shows an empty battery symbol, replace the battery.

The battery connector board is defective

• Check the battery connector board for an open short or broken connector and replace if necessary.

The battery has reached the end of its useful life

• Use the service tool to check cycle count. If the cycle count exceeds 300, replace the battery.

Software Error

• Reboot the device. Press and hold the power button until the device shuts down. Note Any configuration settings not saved as default will be lost. Press the power button to restart.

The touchscreen is out of calibration

• Recalibrate the screen. In Advanced Settings, touch the Service tab and then touch the Self-tests tab.

The touchscreen lock is activated

• To unlock the touchscreen, touch at the bottom of the screen. To disable the touchscreen lock, touch the Settings tab, touch the Device tab, and uncheck Allow display lock timeout.

An internal connection is faulty

• Check the connection at J48 on the main board with display flex cable.

A display flex cable is broken

• Replace the touchscreen and display assembly.

The main board has a faulty touchscreen controller

• Replace the main board.

Excessive force or prolonged rubbing in an area of the touchscreen

• Replace the touchscreen.

The device is in Power-Saver mode

• Turn on the device by pressing the Power button. In Advanced Settings, touch the General tab and then touch the Display tab. Set Device power down to the desired interval.

An internal connection is faulty

• Check the display harness connections at the display and J19 on the main board. Replace the cable if damaged.

A cable is damaged

• Replace the cable.

The brightness setting is too low

• Increase the brightness setting. Touch the Settings tab, touch the Device tab, touch Defaults, and set Display brightness to the desired level.

The display has reached the end of its useful life

• Replace the display.

Patient monitoring is active or being simulated

• Discontinue patient monitoring or stop the simulation.

The parameter alarm is on

• Dismiss the alarm.

Intervals are turned on

• Stop intervals.

The profile license is not installed

• Check for the license: Go to Advanced settings, Service tab, Licensing tab. Verify that the profile license box is checked. If not, purchase the license and install using the service tool.

The battery charge is low

• Connect the device to AC power and allow the battery to fully charge.

The communications board does not receive power

• Check the voltage from J49 on the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

The USB client is defective

• Test the connection by connecting a PC running the service tool.
• Verify that the service tool is configured properly on the PC to communicate with the device. See the service tool help files.
• Replace the power cable to the communications board.

The accessory is defective

• Replace with a known good accessory.

The communications board is not receiving power

• Check the voltage from J49 on the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

One or more USB host connections are defective

• Test the connection with a USB thumb drive. If no power or enumeration is present, such as an LED on a thumb drive, replace the communications board.

A USB connection from the communications board to the main board is faulty

• Verify that the USB cables are connected correctly. Replace the USB cables.

The device is not configured properly

• Check the settings with your network administrator.

The communications board is not receiving power

• Check the voltage from J49 on the main board for +5.0, ±0.5V DC. Replace the main board if necessary.

The Ethernet connection from the main board is faulty

• Test the internal Ethernet cable. Replace if necessary.
• Verify that the shim is installed, if required, on the Ethernet cable connector at J11. See the reassembly notes for the main board.

The network Ethernet switches are not set to the correct speed to work with the device

• Set the switches to 10 Mbps full duplex.

The cable run to the switch is too long

• Use a shorter patch cable.

The device is out of range of the access point

• Check the network status screen’s RSSI value.

The device is not configured properly

• Check the settings with your network administrator.

The antenna is defective

• Check the antenna cable and antenna connection. Replace the cable and antenna if necessary.

The communications board is not receiving power

• Check the voltage from J49 on the main board for +5.0, ±0.5V DC.
• Replace the main board if necessary.