Disclaimer: This guide is intended for educational purposes and qualified biomedical engineering personnel. Always disconnect the device from mains power before opening the chassis to avoid electrical shock.
Device dead? → Check AC adapter, fuse, battery, power switch No trace? → Check leads, patient cable, paper orientation, thermal head Noisy signal? → Check electrode contact, patient ground, RLD circuit Printer issues? → Clean head, replace paper, check motor/gears Drifting baseline? → Replace electrolytic caps in analog path carewell ecg 1101 service manual fix
Open the paper compartment. Ensure the thermal paper is aligned straight and is the correct size (50mm). Disclaimer: This guide is intended for educational purposes