90303B 90311B 90312B

Spacelabs Healthcare · Patient Monitors

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Spacelabs 90303B 90311B 90312B Service Manual

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Stuck? Start here

✅ Check the simple stuff first
  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.
🧰 Common checks for Patient Monitors (1)

Leads off / no signal (telemetry) source ↗

  • Re-attach ECG leads
  • Confirm transmitter is in coverage and batteries are good
📞 Still stuck? Call Spacelabs Healthcare

Contact Spacelabs Healthcare US

📞 Tech support
1-800-522-7025, option 2
🕘 Hours
24/7
🌐 Portal
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