Saab TankRadar G3, Service Manual

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3 Equipment in the I/O Unit cabinet
15
G3 MaC Second edition, March 2000
3.7 Power supply in I/O Unit - service
To replace a Power Supply
1 In the Saab TankRadar I/O Unit, turn off the power by
turning the automatic fuse switch on the I/O Terminal Main
Block to the off position.
2 Disconnect all cables connected to the Power Supply (230 V,
24 V and ground cables).
Note : Mark the cables so that you can connect them again.
3 Unscrew the Power Supply from the cabinet.
4 Bring out the replacement Power Supply.
5 Compare Voltage settings with the old Power Supply.
Note: The 50 W PS module has no such configuration.
6 Screw the Power Supply to the cabinet.
7 Connect the cables to the Power Supply. Make sure you
connect them the same way as they were connected before.
8 Turn on the power on the I/O Terminal Main Block.
Figure 3-6
The automatic fuse
switch on the I/O
Terminal Main Block
turns off the power in
the I/O Unit.