Mindray DC-80A Service Manual

4-4 Product Principle
The switch of control signal on the probe containing high-voltage switch is produced by
DSP_FPGA. The probe distributes out to each probe’s socket.
After being selected and distributed, the control and signal’s feedback of various special probes
(such as 4D, bi-planar, TEE) are connected to the engine board. The selection and the distribution
is realized by CPLD which is controlled DSP_FPGA.
4.2.2 TR64 Board
TR64 board has the capacity for basic ultrasound services. Single board fulfills 64 channels'
transmitting and receiving.
Beam data sends back to the engine board via the serial and the addition from one board to another.
Engine board controls TR board via the asteroidal.
ctrl
RX
data
64ch
TX
AFE_CLK
BF_CLK
control bus
powerJTAG downstream
reset
Probe Board
reset status
present
RATE
TR Board
64ch TX/RX
slot ID
DSP FPGA
Engine Board
clock
XCVR_REFCLK
Pencil Probe
Pen Probe TX/RX
connect to TR_A slot
Adjacent TR board on
frond end side, if exists.
data bus
ATGC bus
Adjacent TR board on
back end side, if exists.
present
JTAG data
data bus
present
JTAG data
AFE_CLK
TX_CLK
BF_CLK
64ch
RX
Pen Prb
RX
switch
ctrl
ATGC
TX_CLK
data bus (from TR_A)
CW
present/ID
RX data
power
DC-DC board
scan status
PHV board
ctrl
TR
FPGA
TX circuits RX circuits
TX-RX switch
including pen probe TX-RX switch
CW mini
board
(TR_A)
Clock distribution
ATGC
Including switch
between local and bus
ctrl
Mother
Board
Figure 4-4 Schematic diagram of TR board
The functions of TR board:

Mindray DC-80A Specifications

General

Brand	Mindray
Model	DC-80A
Category	Diagnostic Equipment
Language	English