Simrad CA44 - Page 180

Chapter 10-2 CA34/44/54 Troubleshooting, Service and Specifications
Symptom Check Remedy
Excessive noise in echo
picture
Check for correct ground-
ing
Connected equip-
ment must be properly
grounded to the main unit
Echo image on radar
display differs from actual
image
Check if ship’s heading is
incorrect
Set ship’s heading cor-
rectly - see section 9.1
Check if timing is incor-
rect
Set Zero Range correctly
- see section 9.1
Echo images on radar
display are blurred
Check Gain, Sea and Rain
settings
Make adjustments - see
section 3.2.5
Too much noise in radar
display
Check if tuning is incor-
rect
Adjust TUNE - see sec-
tion 3.2.5
Alarm activated in radar
function
Check Alarms in section
3.2.10
All data is deleted after
turning off the unit and
turning it back on
Check battery lifetime.
Expected lifetime is min.
5 years
Internal battery must be
replaced by authorized
dealer