62 RAYDATA Installation and Operation Handbook
7.2 Fault Finding
All Raymarine products are, prior to packing and shipping, subjected to
comprehensive test and quality assurance programs. However, if a
fault arises with your RayData, the following table will help you to identify
the probable cause and provide the most likely cure.
Fault Cause Action
Instrument display blank. No supply voltage. Check DC power supply to RayData.
Check cabling and security of
SeaTalk connectors.
Check fuse/breaker.
Return unit for repair.
No depth or speed/temp Mode set incorrectly. If repeating SeaTalk data, change
data on RayData. mode from Master to Repeater in
setup (see Chapter 4).
If repeating NMEA data, change
mode from Repeater to Master.
No speed or temperature Speed transducer Check cabling and security of
information. cabling problem. speed transducer connector.
No speed through water Paddlewheel fouled. Clean paddlewheel.
information. Use Speed Over Ground display (if
available) in interim.
No depth information. Depth transducer Check cabling and security of
cabling problem. depth transducer connector.
No NMEA data. NMEA cabling Check cabling and security of
problem. NMEA connector.
No exchange of SeaTalk cabling Check security of SeaTalk
information between problem. connectors.
SeaTalk instruments. Disconnect instruments one by one
to isolate faulty unit.
Failure of a group of SeaTalk cabling or Check security of SeaTalk
instruments in SeaTalk connector problem. connectors and non-functioning units.
chain.
Operation in Very Shallow Water
The Raydata is designed to operate down to a minimum depth of 2.8
feet below the transducer. Below this value, multiple echoes can
sometimes be received, resulting in deeper depth readings than the
actual depth.
7.3 Absent Data
If a required data value is not received via the SeaTalk bus or NMEA
connection for 30 seconds, then the displays that require the data
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