Symptom Possible cause Suggested action
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 doesn’t charge or run
time is low
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.
Display
Symptom Possible cause Suggested action
The touchscreen does not respond Software error Reboot the device. Press and
hold the power button until the
device shuts down.
30 Troubleshooting Welch Allyn Connex
®
Vital Signs Monitor 6000 Series™
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