Raymarine RV-100 Installation Instructions Manual page 31

Possible causes Possible solutions
Damaged cables 1. Check the unit's connector for broken or bent
pins.
2. Check that the cable connector is fully inserted
into the unit and that the locking collar is in the
locked position.
3. Check the cable and connectors for signs of
damage or corrosion, replace if necessary.
4. With the unit turned on, try flexing the power
cable near to the display connector to see if this
causes the unit to re-boot/lose power, replace
if necessary.
5. Check the vessel's battery voltage, the
condition of the battery terminals and power
supply cables, ensuring connections are
secure, clean and free from corrosion, replace
if necessary.
6. With the product under load, using a
multi-meter, check for high voltage drop across
all connectors/fuses etc (this can cause the
Fishfinder applications to stop scrolling or the
unit to reset/turn off), replace if necessary.
Vessel speed too Slow vessel speed and recheck.
high
Bottom too shallow The bottom depth may be outside of the transducers
or too deep depth range, move vessel to shallower or deeper
waters as relevant and recheck.
Ping depth limit set If using a transducer with greater than 600 W power,
check if the [Ping depth limit] has been enabled:
[Menu > Settings > Transducer > Ping depth limit].
If you are in water deeper than the specified [Ping
depth limit] then the transducer may not provide
depth readings.
Disable or adjust setting and retry.
System checks and troubleshooting
Poor / problematic image
Possible causes Possible solutions
Targets will appear Increase vessel speed.
differently if your
vessel is stationary
(e.g.: fish will appear
on the display as
straight lines).
Scrolling paused or Unpause or increase sonar scrolling speed.
speed set too low
Sensitivity settings Check and adjust sensitivity settings or perform a
may be inappropriate Sonar reset.
for present
conditions.
Damaged cables 1. Check the unit's connector for broken or bent
pins.
2. Check that the cable connector is fully inserted
into the unit and that the locking collar is in the
locked position.
3. Check the cable and connectors for signs of
damage or corrosion, replace if necessary.
4. With the unit turned on, try flexing the power
cable near to the display connector to see if this
causes the unit to re-boot/lose power, replace
if necessary.
5. Check the vessel's battery voltage, the
condition of the battery terminals and power
supply cables, ensuring connections are
secure, clean and free from corrosion, replace
if necessary.
6. With the product under load, using a
multi-meter, check for high voltage drop across
all connectors/fuses etc (this can cause the
Fishfinder applications to stop scrolling or the
unit to reset/turn off), replace if necessary.
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