Troubleshooting - Simrad CX34 Manual

Troubleshooting, Service and Specifications

10.1 Troubleshooting

For all fault finding, first check that the supply voltage is between 10-32 VDC
Symptom
No picture on display
screen
Picture appears on the
display screen, but image
is too dark or too bright
No normal picture or key
operation
No GPS position update
Screen update is
extremely slow
Echo image on radar
display differs from actual
image
Echo images on radar
display are blurred
Too much noise in radar
display
Check
Check that the unit is
turned on
Check fuse in power cable
fuse holder
Check via [MENU], [7],
[CHART] if C-MAP chart
is defective
Check that position
mode is INTERNAL,
refer to interface setup in
[MENU],[7],[2], Position
Check antenna and cable
Check that the stored
Tracks and Routes (not
currently in use) are not
all drawn up on the chart
Check if ship's heading is
incorrect
Check if timing is incor-
rect
Check Gain, Sea and Rain
settings
Check if tuning is incor-
rect
CX34/44/54 Operator manual
Chapter 10-1
Remedy
Press the [PWR] key on
keypad
Replace fuse. Use only type
T6.3A slow (5x20 mm)
Press [PWR], adjust light
and press [ENT]
Turn unit off and on again
Disconnect power and
connect power again
Remove C-MAP chart if
defective
Return to factory presets,
see section 9.8
Replace antenna or cable
Turn off 'Course line'
for each stored route in
sec.8.2, and turn off 'Dis-
play track' in sec.8.6
Set ship's heading cor-
rectly - see section 9.1
Set Zero Range correctly
- see section 9.1
Make adjustments - see
section 3.2.5
Adjust TUNE - see sec-
tion 3.2.5