Mindray Z5 - Page 59

Hardware Principle 4-15
Pressing power button
(Control panel)
Is AC in place?
(Ppower management
FPGA)
NO
Receiving PWR_BTN_N effective
(Power management FPGA)
PWR_5VSTB_EN_N is valid
(Power management FPGA)
5VSTB start-up
(Power supply module)
PWR_5VSTB_OK_N is valid
(Power supply module)
CPU_PWR_BTN_N is valid
(Power management FPGA)
SUS_S3_N and SUS_S4_N
is invalid(CPU module)
PWR_12V_EN is valid
(Power management FPGA)
PWR_12V_OK_N is valid
(Power supply module)
CPU start-up
(CPU module)
12V and +5V start-up
(DC-DC power board)
PWR_OK_N is valid
(Power management FPGA)
YES
Indicating 12V
output of power
module is normal
Indicating
5VSTB_CPU
output of power
module f is normal
Figure 4-2 System Power-on