Quality Guarantee & Warranty Policy

1. Comprehensive Warranty Coverage

Every pre-owned medical imaging system, refurbished ultrasound probe, MRI coil, CT tube, and repaired circuit board delivered by LYORAY includes formal warranty protection backed by our biomedical engineering team.

• Ultrasound Probes & Transducers: 90-day standard replacement warranty with acoustic element performance certificate.
• MRI RF Coils & CT Detectors: 90 to 180-day warranty depending on OEM classification.
• Chip-Level Repaired Circuit Boards: 90-day warranty covering repaired component pathways, power stages, and solder junctions.
• Complete Pre-Owned Systems (MRI/CT/Ultrasound): Turnkey warranty options including operational startup assurance and remote engineering support.

2. 100% Bench & Phantom Pre-Shipment Verification

Prior to crating and export dispatch, all items undergo rigorous QA protocols:

• 72-hour continuous bench burn-in for power supplies and gradient amplifiers.
• Acoustic First Call matrix sweep for ultrasound transducers to verify zero element dropouts.
• Multi-angle phantom calibration for diagnostic image clarity and signal-to-noise ratio (SNR).

3. Return Material Authorization (RMA) Workflow

If an item demonstrates functional irregularity during the warranty period:

1. Initial Engineering Triage: Contact our engineering desk via email (ly@lyoray.com) or WhatsApp (+86 136 7190 1269) with serial numbers, error logs, and failure symptoms.
2. RMA Issuance: Within 12 business hours, our QA lead will issue an official RMA tracking number.
3. Rapid Replacement or Repair: We dispatch an in-stock replacement unit immediately or perform expedited lab repair upon return arrival.