BeneVision N17/N15/N12

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.

SMR can't identify parameter modules source ↗

• Check SMR-to-monitor cable and contact screws
• Swap in known-good module
• Mismatched software: upgrade module/SMR
• Measure 12 V at SMR interface output and contact screws; abnormal → internal rack COM / main board, or SMR comm module

Internal module rack: module doesn't respond source ↗

• Swap known-good module
• Check internal rack COM board → main control board cable
• Upgrade module/COM board software or COM board logic version
• No 12 V → COM board or main board

Alarm LED off or stuck on source ↗

• Check alarm LED board → main control board cable
• Replace alarm LED board, then main board

No audible alarm source ↗

• Main Menu → System → Maintenance (password): check alarm not muted / minimum volume

Leads off / no signal (telemetry) source ↗

• Re-attach ECG leads
• Confirm transmitter is in coverage and batteries are good