Mindray DPM 4 Service Manual

2-3
2.1.4 Power Supply
The power supply part is an important part of the patient monitor. It includes the main power
PCB, backlight board, batteries and fan.
The main power PCB converts the external AC current to the 5V DC current, which are supplied
for the whole system. For the TFT display, there is a special requirement on the power supply, so
a backlight board is used. The batteries supply power for the system for a short time when there is
no external AC current. The fan is used for the heat sink of the system.
2.1.5 Other Auxiliary Functions
The DPM4 patient monitor also provides the network upgrade function for the service engineers
to upgrade the system software without disassembling the enclosure.
2.2 Hardware Description
The structure of the DPM4 patient monitor is shown in the following figure.
Figure 2-2 Functional structure of the DPM4

Mindray DPM 4 Specifications

General

Brand	Mindray
Model	DPM 4
Category	Medical Equipment
Language	English