Mindray DC-68, Руководство по обслуживанию

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4-2 Product Principle

The management functions of the probe decouple the transmitting/receiving channel, and
communicate with the engine board.

As the independent sub-module, 4D driving function and physiological signals are
subordinate to the engine board.

As an option, CW receiving function can be realized through an independent single board
and is subordinate to TRA board signal.

Back-end unit: more functions are achieved on back-end unit. It basically resembles with PC. It
is equipped with main functions of the main unit, calculation capacity of image post-process,
operator-system interface to human-computer interaction, etc. PC module takes charge of
back-end unit. The elements are shown above.

Power supply unit: it supplies the power to the front-end unit, back-end unit and peripherals.
Other elements are shown above.

PHV module is subordinate to DC-DC module.

DC-DC module includes DC-DC board and battery assembly.

AC module includes AC-DC board, AC interface, control adapter board, etc.
4.2 Ultrasound Front-end Unit
Figure 4-2 Schematic diagram of ultrasound system front-end
Front-end unit mainly consists of:

Engine board

TR board

Probe board