Furuno FA-100 Manuales De Servicio

2  MAINTENANCE, TROUBLESHOOTING 

Note: Detection of RX Malfunction 
 
1) Detection of TDMA RX malfunction 

Frequency error 
    PLL chip on receiver board generates lock or unlock signal for synthesizer. 
    MPU watches and sets status flag which reflects data of ALR sentence. 
    ID 003 for RX1, ID 004 for RX2 

General error 
    DSC Error (ID: 005) will happen in case of DSC MPU could not receive   
    format specifier of the data from DSC amplifier unless RSSI exists more 
  than four seconds. 
 
 

The GPS monitor display shows information about the built-in GPS receiver, 
including position, speed over ground, course over ground, date, time, mode 
and status.   
 
1.  Press the [MENU] key to open the menu. 
2.  Press the [3] key to choose OWN DATA. 
3.  Press the [5] key to choose INTERNAL GPS. 

[INTERNAL GPS]
LAT

:    34

°

44.4639’N

LON

: 135

°

21.2395’E

SOG : 10.9 kt
COG : 98.9 deg
UTC

: 6/MAR/2002

             6:29:02
MODE: A  STS: 3D

Latitude position

Longitude position

Speed over ground

Course over ground

Date

Time

Mode

A: GPS

D: Differential

N: No Fix

STS (Status)
2D:

2D GPS position fix

3D:

3D GPS position fix

D2D: 2D DGPS position fix
D3D: 3D DGPS position fix
DOP: HDOP larger than 4 in 2D fix,
          or PDOP larger than 6 in 3D fix
NO FIX: No position fix 

4.  Press the [MENU] key to close the display.