Mindray WATO EX-55Pro, Service Manual

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4) NC No connection inside
5) GND Ground
6) GND Ground
7) GND Ground
8) GND Ground
9) NC No connection inside
10) GND Ground
11) NC No connection inside
12) NC No connection inside
13) VGA_HSYNC VGA line frequency signal
14) VGA_VSYNC VGA audio signal
15) NC No connection inside
Definition of mother board J9 (battery adapter board port)
Pin No. Signal Name Discription
1) BAT1+ Battery voltage
2) NTC1 Thermistor inside battery
3) BC1 Battery in-place signal
4) GND Ground
5) BAT2+ Electric
6) NTC2 Thermistor inside battery
7) BC2 Battery in-place signal
8) GND Ground
Definition of mother board J10 (power board port)
Pin No. Signal Name Discription
1) PLAM Audio buzzer drive control signal
2) RXD_POWER Received signal of power board series port
3) Huilu_switch Circuit switch, indicating whether circuit is in-place
4) TXD_POWER
Sent signal of power board series port (received by main
control board)
5) NC No connection inside
6) GND Ground
7) LED_BAT Battery indicator control signal
8) LCD_EN LCD backlight enable signal
9) LED_AC AC status indicator drive output
10) LCD_BR LCD backlight brightness adjustment control voltage
11) PCON-
Power on/off signal, LVTTL pulse signal. When it is
high level, the system powers on; when it is low level,
the system powers off.
12) PCON+ 3.3 V only for powering on/off
13) BAT2+
Lithium battery 2 input, connected to the anode of
battery
14) GND Ground
15) BC2
Lithium battery 2 in-place signal. Low level indicates
there is battery; high level indicates there is no battery