2. MAINTENANCE, TROUBLESHOOTING
2.2 Replacing the Fuse
The fuse (5 A) in the power cable protects the equipment against reverse polarity of ship’s mains, overcurrent, and equipment fault. If the fuse blows, find the cause before replacing it.
CAUTION
Use the proper fuse.
Use of a wrong fuse may cause serious damage to the equipment and void the warranty.
2.3 Troubleshooting
The table below provides simple troubleshooting procedures which the user can follow to restore normal operation. If you cannot restore normal operation contact your dealer for advice.
Troubleshooting
If… | But… | Then… |
you pressed the | nothing appears on the | • try adjusting LCD contrast. |
[POWER/BRILL] key to turn on | display or display contrast | • battery may have discharged. |
the radar | is poor | • check if fuse has blown. |
|
|
|
| the control panel does not | adjust PANEL DIMMER on the |
| light | User menu. |
|
|
|
the radar has warmed up and | the message “NO | check that the antenna cable is |
you pressed the [MODE] key to | HEADING PULSE” or “NO | firmly connected. |
transmit | BEARING PULSE” |
|
| appears |
|
|
|
|
| neither noise or targets | • try adjusting gain, A/C SEA and |
| appear (characters and | A/C RAIN. |
| markers do) | • check signal cable for damage. |
|
|
|
a key is pressed | nothing happens | key may be faulty. Contact your |
|
| dealer. |
|
|
|
the display freezes |
| Press the [POWER/BRILL] key |
|
| about five seconds to turn off the |
|
| power and then turn it on again. |
|
|
|
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