Mindray WATO EX-55Pro, Service Manual

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2-9
Pin No. Signal Name Discription
50) GND Ground
Definition of mother board J3 (display assembly port)
Pin No. Signal Name Discription
1) Display differential signal
2) LCDVGA4- Display differential signal
3) LCD3V3 Display dedicated 3.3V power supply
4) GND Ground
5) Display differential clock signal
6) LCDCLK- Display differential clock signal
7) GND Ground
8) Display differential signal
9) LCDVGA3- Display differential signal
10) GND Ground
11) Display differential signal
12) LCDVGA2- Display differential signal
13) GND Ground
14) Display differential signal
15) LCDVGA1- Display differential signal
16) GND Ground
17) GND Ground
18) LCD3V3 Display dedicated 3.3V power supply
19) LCD3V3 Display dedicated 3.3V power supply
20) 12VA_AUX_Light +12V power sully of auxiliary light board
21) GND Ground
22) TXD_Touch Sent signal of key board series port
23) RXD_Touch Received signal of key board series port
24) TXD_KEY
Sent signal of key board series port
(EFCS flowmeter knob)
25) RXD_KEY
Received signal of key board series port
(EFCS flowmeter knob)
26) SDA_CPU Main board IIC data signal
27) SCL_CPU Main board IIC clock signal
28) GND Ground
29) 5V_Touch_screen +5V power supply
30) GND Ground
31) 3V3_Keyboard +3.3V power supply
32) LCD_EN Backlight enable signal
33) LCD_BR Backlight brightness adjustment signal
34) GND Ground
35) GND Ground
36) 12VA_UI 12V power supply signal of backlight
37) 12VA_UI 12V power supply signal of backlight
Mother board J4 port (EFCS flowmeter port)
Pin No. Signal Name Discription
1) KUAI_O2 Air source pressure switch signal
2) GND Ground
3)
12VB_AutoFlowmeter
_FPGA
12V power supply for main CPU of EFCS flowmeter
4) GND Ground
5) 12VB Power supply for the motor of EFCS flowmeter
6) 12VB Power supply for the motor of EFCS flowmeter
7) GND Ground