Mindray DC-25, Руководство по обслуживанию

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Hardware Principle 4-15
4.7 Ultrasound System Indicator
CPU
module
Main board
Power
indicators
Power on indicator
Battery status
indicator
AC power indicator
Standby indicator
Power
management
FPGA
Drive
HDD indicator
Drive
Drive
5VSTB
Control panel
+12V
+5V
Drive
3.3V
ARM
Drive
Power supply
module
IO
interface
board
IO rear
board
Figure 4-15 Principle Diagram of Ultrasound System Indicator
Function describes as following:
There are three power indicators on the IO rear panel, they are output from main board
and transferred via IO interface board: three are used for indicators of +12V, +5V and
3.3V output on the DC-DC power board

There are five indicators on the control panel, in which power-on status indicator is
below the power button.

AC power-on status indicator is controlled by FPGA on the Power supply module.

The status indicator of the battery are controlled by the battery management ARM on
the power supply module and drived by 5VSTB on the main board.

The status indicators of power-on and standby are both generated by the battery
management FPGA in the power supply module and drived by 5VSTB on the main
board.