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Chapter 6: Maintenance & Fault Finding 6-3
6.3 Problem solving
Prior to packing and shipping, all Raytheon products are subjected to
comprehensive test and quality assurance programmes. However, if this unit
should develop a fault, please refer to the following table to identify the most
likely cause and the corrective action required to restore normal operation.
If you still have a problem after referring to the table, contact your local dealer,
national distributor or Raytheon Product Support for further advice.
Always quote the product serial number.
Fault finding
ProblemProblem
ProblemProblem
Problem
CorrectionCorrection
CorrectionCorrection
Correction
Unit does not function 1. Make sure that the power supply cable is sound and that all
connections are tight and free from corrosion.
2. Check polarity of the dc power cables for proper connection.
Reconnect leads if necessary.
3. Check in-line fuse. Replace if necessary.
4. Check vessel’s power (battery) for correct voltage readings
(10.0Vdc to 18.0Vdc)
Poor display definition Adjust contrast setting and/or backlight level
No position information Check the GPSconnection
Check the GPSreceiver/antenna
No fix Check that GPS receiver not obstructed
No dfix (RC420 only) Check beacon station coverage
Check antenna ground (see GPS antenna Installation Guide)
No NMEA data received Check the POWER/NMEA connector and the NMEA equipment
Loss of stored data, Return to dealer for internal battery chack
eg. waypoints
No detailed chart data Check that Nav-Chart card is pushed fully home
Check that the Nav-Chart card has appropriate cartography
Other problems visit website
www.raymarine.comwww.raymarine.com
www.raymarine.comwww.raymarine.com
www.raymarine.com