Mindray Z5 Service Manual

4-10 Hardware Principle
4.2.6 Display
LVDS3.3V
Display
High-voltage
LCD
screen
Parameter
board
I2C
3.3V
Inverter board
ON/OFF
12V
Brightness
control
Main board
IO board
12V 3.3V
Multifunction FPGA
LVDS
I2C
triode triode
Control signal
of switch
Brightness
PWM
ON/
OFF
Brightness
control
Figure 4-9 Principle Diagram of Display
Monitor mainly consists of the inverter board, LCD and the parameter board.
Function describes as following:
 The inverter board produces high voltage to illuminate backlight of LCD which is adjusted
by signal control switch and brightness of the IO board output.
 Color temperature and Gamma correction data memory in parameter board used matches
LCD so that the corresponding display effect shall be consistent.
 Multifunction FPGA generates switch control signal which drives triode to control inverter to
open or shut off high-voltage output.
 Multifunctional FPGA generates PWM signal, which drives triode to control output
high-voltage of the inverter to adjust the brightness of the display.
 Multifunctional FPGA outputs LVDS digital signal of display, which is sent to screen directly.
 Multifunctional FPGA communicates with parameter via 12C signal and supports to adjust
parameters of display.

Mindray Z5 Specifications

General

Brand	Mindray
Model	Z5
Category	Medical Equipment
Language	English