Power Module - EDAN F9 Service Manual

F9 Fetal & maternal Monitor Service Manual
(2) Interface connects to print head
(3) Interface connects to stepper motor (gear assembly)
(4) Interface connects to paper sensor (paper lack detecting)

7.2.5 Power Module

The power module outputs +12V, -12V, +5V voltage and manages charging.
The power interface board is used to transfer the power, its circuit is:
Pin No. Symbol
1 VH_+24V
2 VH_+24V
3 VH_+24V
4 GND
5 GND
6 GND
7 VCC
8 THERMISTOR
9 /STROBE_3
10 /STROBE_3
11 /STROBE_3
12 /STROBE_3
13 CLOCK
14 /LATCH
15 DATAIN
Pin No. Symbol
1 VDD_MOTOR
2 VDD_MOTOR
3 /B
4 B
5 /A
6 A
Pin No. Symbol
1 VDD_PS
2 GND
3 PS
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Principle Introduction