GPS-NAVIGATOR GP-32 & GP-37

8. MAINTENANCE &TROUBLESHOOTING8.1 MaintenanceRegular maintenance is important to maintainperformance. Check the following pointsmonthly to help maintain performance.• Check that connectors on the rear panelare firmly tightened and free of rust.• Check that the ground system is free ofrust and the ground wire is tightly fastened.• Check that battery terminals are clean andfree of rust.• Check the antenna for damage. Replace ifdamaged.• Dust and dirt on the keyboard and displayscreen may be removed with a soft cloth.Do not use chemical cleaners to clean theequipment; they may remove paint andmarkings. Use special care when cleaningthe LCD – it is easily scratched.8.2 Displaying the MessageBoardThe message board displays error messagesand alerts. You can display it as follows:1. Press the [MENU] key once or twice toopen the menu.2. Choose MESSAGES.3. Press the [ENT] key.MESSAGE board4. Press the [MENU] key twice to quit themessage board.MessagesMessageMessages and their meaningsANCHOR WATCH!ARRIVAL ALARM!BACKUP ERRORDATA/BATTERY ALARM!NO DGPS SIGNAL!GPS NO FIX!HIGH VOLTAGE!LOW VOLTAGE!ODOMETER ALARM!RAM ERROR!ROM ERROR!RTC ERROR!SPEED ALARM!TIME ALARM!TRIP ALARM!NO WAAS SIGNAL!NO WAAS/DGPSSIGNAL!XTE ALARM!Meaning, RemedyAnchor watch alarmviolated.Arrival alarm violated.RAM data corrupted.Try to clear backupdata. See para. 8.4.Voltage of battery indisplay unit is low.Request replacement.WAAS/DGPS alarmviolated. *1No GPS signal. Checkantenna cable.Power source voltagetoo high.Power source voltagetoo low.Odometer distancealarm violated.Request service.Request service.Request service.Speed alarm violated.Time alarm violated.Trip distance alarmviolated.WAAS/DGPS alarmviolated. *2WAAS/DGPS alarmviolated. *3XTE alarm violated.*1 = WAAS/DGPS mode: INT/EXT BEACON*2 = WAAS/DGPS mode: WAAS*3 = WAAS/DGPS mode: AUTO47