PageWriter TC50/TC70

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.

All leads show Leads Off (red dashed lines) continuously source ↗

• Check that the RL/N lead and electrode are secure
• PIM-disconnected icon at top right: reseat the USB patient data cable at the PIM and the rear PIM port
• Run the PIM test: if it fails, replace the patient data cable; if it still fails, replace the PIM
• Leads fully seated in the PIM; no cracks; run the lead-wire open/short test

Leads Off on one or more leads intermittently source ↗

• Proper skin prep; clean, secure lead adapters; in-date electrodes
• After defib or noise the PIM re-arranges automatically; if it persists, send for PIM or lead cable service
• Normal: PIM resets (red dashes up to 10 s) on power-up/wake, screen change, or USB stick insert

AC line interference source ↗

• New electrodes and skin abrasion; check expiry
• Route the leads along the limbs away from poorly grounded equipment
• Move the cart away; unplug and run on battery; unplug electric beds

Baseline wander source ↗

• Relax the patient; the leads must not pull the electrodes
• Reapply the electrodes; turn on the wander filter (Status bar > Settings); move the leads away from chest motion

Tremor or muscle artifact source ↗

• Limb electrodes flat on non-muscular areas, nearer the trunk; keep the patient warm
• Turn on the artifact filter (Status bar > Settings)

Intermittent or jittery trace source ↗

• Clean sites and reapply the electrodes; reposition or replace the faulty patient cable

Poor print quality (uneven contrast or blank streaks) source ↗

• Clean the printhead; use recommended paper

Leads off / bad waveform source ↗

• Swap patient cable, then harness, then ECG board

Power/battery source ↗

• Check AC fuses; fewer than 10 reports per charge = replace battery