Usg Equipment Mindray DC-N3 Pro/DC-N3T/DC-N3S/DC-N3/DC-N3 Information and Troubleshooting Methods

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Mindray DC-N3.

*Note: You can also use this artical for Mindray DC-N3 Pro/DC-N3T/DC-N3S.

Basic Overview-

           Its a basic Doppler machine. You can use this machine for basic application. You can also done 3D/4D. In this series DC-N3 is also available in vet model i.e use for veterinary use. It's a Linux base machine therefore you may have difficulty to install external devices such as printer, thermal printer etc i will share the list of supported printers and other supporting stuff.

There are two unit in this machine as follows

          1.Front-end Unit.

          2.Back-end Unit.

          3.Power Supply Unit.

1.Front-end Unit-

          A)Probe Board-

                   a)Its support 192/128 elements probe, 4D probes, phased array probes and bi-planar probe.

                   b)You can connect four probe at a time. Probe board is used for port switching and ID recognition of probes on every port.

          B)TR Board-

                   a)As we know the TR board is used for the signal transmitting and receiving.

                   b)In this board system communicate with the TR board via communication control bus.

                   c)Its generate 64- channel transmission waveform and signal receiving.

          C)CW Board-

                   a)Its use for echo signal receiving.                                                                                                     b)It convert low-voltage digital signal into plus transmitting signal which will drive the transmission.

2.Back-end Unit-

          A)Digital Board and IO Board-

                   a)Digital board is used for digital signal processing of B mode, C mode and d mode etc.

                   b)Multifunctional FPGA is on the digital board that implements video format transfer, back-end control, port extending etc.

                   c)It coverts LVDS signal to all other video formats that required by video output port.

                   d)IO board is supported G-bit Ethernet port, WIFI port, Support Bluetooth, Footswitch, B/W and color Video print control port, SATA port, USB ports.

          B)4D/TEE Board-

                   a)It is use for power amplification for 4D drive signal of probe.

                   b)It provide the 4D Hall signal to the channel also amplifying and collect TEE probe temperature and angle signal.

3)Power Supply Unit-

         Power supply is used for the supply power to the fornt-end, back-end, and peripherals. Power supply unit is consists of auxiliary output board, AC-DC power board, DC-DC power board, battery module etc. we study one by one.

          A)Auxiliary Output Adapter Board-

Auxiliary output adapter board connects to AC input directly and supplies to the peripherals.

          B)AC-DC Board-

The mains power is given to AC-DC board and after it goes through EMI filter circuit, then APFC circuit start to work normally and give output DC-DC board when machine is turned on.

          C)DC-DC Board-

                   a)Power management of machine is done by DC-DC board, such as battery management, PHV management, power module.

                   b)When machine is turned on DC-DC power board give the output to back end boards.

                   c)AC input is set on priority, if the AC input and battery both are connected at that time machine will work on AC not on battery.

                   d)Machine work on battery only when AC power is not connected.

                   e)DC-DC board mainly generate the +100v and -100v that is adjustable PHV.

                   f)PHV is only generate when IC received command from host computer, basically when probe start to work at that time PHV is generate.

Supported Accessories-

NAME	MODEL
Footswitch	FS-81-SP-2(1 pedal, USB port) 971-SWNOM(2-pedal/3-pedal, USB port)
Black/White video printer	Analog: SONY UP-897MD, UP-D898MD, UP-X898MD, MITSUBISHI P93W-z Digital: SONY UP-D897
Color video printer	Analog: SONY UP-20
Graphics/Text Printer	HP Deskjet 1050 HP Deskjet 1018 HP Deskjet Ink Advantage 2020hc HP Deskjet Ink Advantage 2010 HP Deskjet Ink Advantage Printer K109g HP Officejet Pro 8100 HP Deskjet 1000-J110a EPSON Stylus PHOTO R230 EPSON Stylus PHOTO R270
Barcode scanner	SYMBOL LS2208

Troubleshooting of DC-N3-

          This is Linux base machine, so here no option available for selftest.

          A)Machine is Can't  Powered on-

If machine is cant power on you need to check following boards-

                   a)AC-DC board.

                   b)DC-DC board assembly.

                   c)CPU module.

                   d)Battery.

                   e)Hard Disc.

          B)Probe Image Displaying Abnormal-

                   a)DC-DC board assembly.

                   b)TR boards.

                   c)Probe board assembly.

          C)IO related Issue-

                   a)Digital board assembly.

                   b)CPU module.

                   c)IO board.

          D)ECG related Issue-

                   a)ECG board.

                   b)Digital board.