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9. MAINTENANCE & TROUBLESHOOTING
9-4
9.4 Troubleshooting
The table which follows provides
troubleshooting procedures which you can
follow to restore normal operation. If normal
operation cannot be restored, ask your
dealer for advice.
Table 9-1 Troubleshooting table
If… Then…
you cannot turn on the power
• check power connector for tight connection.
• check if ship’s main is off.
• check for blown fuse.
position cannot be fixed
• check antenna cable for tight connection and water leakage.
• check if functional satellite has been disabled:
MENU ESC, 9, 6
position is wrong
• Check if correct geodetic chart is entered: MENU ESC, 9, 6
• apply position correction to GPS position: MENU ESC, 9, 6
position sometimes cannot be
fixed
• DOP figure may be too small. Enter larger figure; 20 is the
usual setting.
data cannot be transmitted to
external equipment
• check if data format is correct:
MENU ESC, 9, 3 (9, 4 or 9, 5)
See the chapter on installation for further details.
• tx interval may be set to “0”. Select proper interval.
MENU ESC, 9, 3 (9, 4 or 9, 5)
See chapter on installation for further details.
• check appropriate settings on external equipment.
• check connections:
GP-150-DUAL
Ext. equipment
TXD-H ↔ RXD-H
TXD-C ↔ RXD-C