Mindray DC-25, Руководство по обслуживанию

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Hardware Principle 4-1
4
Hardware Principle
4.1 General Structure of Hardware
System
Main board
IO rear
board
Control panel
Monitor HDD
I/O signal
+5V/+12V
DVI
DC-DC power
board
S
A
T
A
Main
unit fan
Connect to USB port on the
control panel
Control ports
AC-DC
power
board
Battery
module
Main power supply
AC auxiliary output
Isolation
transformer
DVD- RW
probe
connected
assembly
Probe
board
U
S
B
+
5
V
/+
12
V
CPU
module
Auxiliary out put
control
+3.3V
+5V
+12V
+5V
Power supply
Communication &control
Ultrasonic signal
+12V
Rotating feedback & control
BAT+
Communication &
connecting
Transmission
& echo
Transmission
&echo
I/O signal
Machine
fan
+12V
Rotate speed
feedback & control
U
S
B
IO interface board
+12V
Main
unit
module
Power
supply
module
Auxiliary
output cont rol
Speaker
Communication
&control
4D Drive
board
Communication
&control
ECG
board
Figure
4
-
1
Schematic Diagram of System
As a mobile color ultrasonic product
，
the system supports 3 probe sockets.
The detailed structure of the ultrasound system is in the figure above, and they can
be divided into 4 main modules:

Main unit module

Power supply module

Monitor

Control panel
The four modules will be described in the following chapters.
4.2 Main Unit Module
The main unit module contains 7 boards:

Probe board