EP539100BB/EP539500DG-Board Repair for Aloka Alpha 7 RX BF/DBF1/DBF2

The RX BF/DBF1/DBF2 board is the core front-end receiving and digital beam-forming board set for the Hitachi Aloka Prosound Alpha 7 ultrasound system. It is responsible for receiving, amplifying, and processing ultrasound echo signals, and plays a critical role in image quality and channel performance.

Basic Information

Part Numbers:
- RX Board: EP539100BB
- DBF1 Board: EP539500DG
- DBF2 Board: EP539501DG (compatible)
Compatible Equipment: Hitachi Aloka Prosound Alpha 7 series ultrasound diagnostic system
Board Type: RX (Receiver) / BF (Beam Former) / DBF (Digital Beam Former)
OEM: Hitachi Aloka Medical Systems

Main Functions

Receive analog ultrasound echo signals from probes, perform signal amplification, filtering, and analog-to-digital conversion (ADC).
Implement multi-channel digital beam forming to improve image resolution, signal-to-noise ratio, and focusing accuracy.
Output processed digital signals to the back-end imaging and display module, supporting 2D, color Doppler, PW/CW, and 3D/4D imaging.
Manage probe channel switching, signal synchronization, and data transmission.

Technical Specifications

Structure: Industrial-grade high-density PCB with multi-connectors and high-speed signal processing chips.
Interfaces: Probe channel interface, high-speed digital signal interface, system control and power interface.
Power Supply: DC +12V/+5V/+3.3V (compatible with Alpha 7 main unit).
Operating Environment: Temperature 0–40°C, Humidity 10%–90% non-condensing.
Warranty:
- New OEM board: 6–12 months
- Repaired / Refurbished board: 60 days