Connex Spot Monitor

1. Make sure the patient is safe — swap in a backup unit if you need to.
2. Reproduce the complaint yourself and write down exactly what you see (screen, alarm, code).
3. Check power, battery, cables, accessories, and settings before ordering parts.
4. Then open the service manual above and follow its troubleshooting section.

Won't power up source ↗

• New battery installed: connect AC to wake it
• Battery discharged: connect AC to charge
• Check power supply output is 15 V ±0.45 V DC; replace if not
• Charge battery 5 h; if icon still empty, replace battery
• Then power switch, then main board

Touchscreen unresponsive source ↗

• Calibrate touchscreen / run Host Calibration Sequence in Service Tool
• Replace LCD/touchscreen, then main board

Powered on but display blank source ↗

• May be in Sleep mode: touch the screen
• Run Host Calibration Sequence; replace LCD/touchscreen, then main board

No nurse-call alarm signalling source ↗

• Check alarm limits aren't set too wide
• Make sure audio alarms aren't silenced
• Run Host Calibration Sequence; replace main board

Won't connect to Wi-Fi / Bluetooth source ↗

• Verify monitor network settings and local network
• Keep device within range; re-pair Bluetooth
• Run radio functional check, update software, then replace radio / main board

Won't power on source ↗

• Confirm AC cord/outlet and battery charge
• Check internal power/battery harnesses
• Measure power supply output against spec (15 V DC on Welch Allyn Connex and Philips VS3)
• Charge battery fully; replace if still empty

Touchscreen issues source ↗

• Check whether touch is disabled/locked
• Calibrate touchscreen
• Check touchscreen cables before replacing parts