Saab TankRadar G3, Service Manual

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22
Service Manual
G3 MaC Second edition, March 2000
Symptom Cause Action
WS Alarm-
Sysfail, All IO terminals Bus (1-4)
Com No power in any
terminal on one
bus 1 Check if many green Power
LED’s on the terminals are put
out
2 Check if the power supply is
functioning
3 Check cabling
4 Replace the Power Supply
Broken circuit
between I/O Unit
and I/O Box 1 In the Saab TankRadar I/O Box,
check the communication LED
on the RS-485 PCB Refer to as-
built drawings to find right PCB
2 Look for loose cables
3 Contact a Saab Marine
Electronics’ service agent
WS Alarm-
Sysfail, IO terminal Bus (1-4) fuse Fuse is broken on
terminal 1 In the Saab TankRadar I/O Unit,
identify the terminals where the
green power LED is put out
2 Replace fuse
Power supply is
not working 1 Check Power Supply voltage
2 Replace Power supply
3 Contact a Saab Marine
Electronics’ service agent
Faulty values or faulty feedback
from equipment connected to MaC
system Faulty valves,
pumps, sensors
etc 1 Check the equipment connected
to the Saab TankRadar I/O Unit
Loose cables on
terminals 1 Check cables connected to the
terminals that the equipment is
connected to
Faulty terminal 1 Check terminal
2 Replace the terminal
3 Contact a Saab Marine
Electronics’ service agent