Replacing The Key Board; Replacing The Power Inverter Board - EDAN F9 Service Manual

F9 Fetal & maternal Monitor Service Manual

10.5.3 Replacing the Key Board

To remove the key board,
1) Separate the upper assembly and the lower assembly.
2) Disconnect all the wires on the key board.
3) Remove the four screws securing the board.
To replace the key board,
Replace the board in a reverse procedure. Refer to the following illustration when connecting
wires. Ensure they are all correctly connected.
(iii)

10.5.4 Replacing the Power Inverter Board

To remove the power inverter board,
1) Separate the upper assembly and the lower assembly.
2) Disconnect all the wires on the power inverter board.
3) Remove the four screws securing the board.
To replace the power inverter board,
Replace the board in a reverse procedure. Refer to the following illustration when connecting
wires. Ensure they are all correctly connected.
( i ) (ii)
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Disassembling the Monitor
(i) (ii)
No. Connect to
i
ii
iii
(iii)
Main Control Board
Ground Wire (connects
to the upper assembly)
Control Knob
No. Connect to
i LCD Backlight Wire
(Short)
ii Main Control Board
LCD Backlight Wire
iii
(Long)