3.2Troubleshooting
This section provides troubleshooting procedures. Advanced level troubleshooting should be done by referring to the Service Manual (optional supply).
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| Cannot turn on the | Loosened power cable | Fasten the power cable. | |
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| power. |
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| Blown fuse | Replace the fuse. | ||
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| Power is on but | Contrast too low. | Press the [*] key several times. | |
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| nothing appears on |
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Doppler speed indication
SPEEDSTW
10.0 |
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DISTANCE |
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12.50
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Last correct speed is displayed (display freezes).
Reverse video and blinking
Ship’s speed cannot be calculated because of air bubbles, etc. (Speed error : 30 seconds)
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| • Problem with the transducer or air | |
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| SPEED | STW |
| Speed shown as "**.*". | |||||
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| • Speed error continues more than 30 | |||
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| STW | • | Temperature sensor is abnormal. |
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| SPEED | STW |
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| DISTANCE | 10.0 kt |
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| flashing |
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| GPS speed indication |
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| GPS data error. | |
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| SPEED | GPS | Speed indication shown as "**.*". | ||||||
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| DISTANCE | **.*kt |
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| • | No GPS data for 30 seconds. | ||
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| • | GPS receiver disconnected. | ||
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If any abnormal speed indication continues contact your dealer for advice.
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