There Is No Nmea (Position Data) Input - Furuno DSC-60 Service Manual

2.2 There is no NMEA (Position data) input

The warnings about position data are:
1) If position data is not updated, the message "Warning:Update position" appears.
2) If NMEA data is interrupted, the message "EPFS error".
To receive position data, set POSITION in "Setup menu" at "AUTO". Refer to Page 4-8.
DIP switch S5-4 of CONTROL/MODE board must also be set at ON (C Loop) or OFF (RS-422).
NO(NG)
Set the DIP switch.
Note) UTC time Note) UTC time
Note) UTC time Note) UTC time Note) UTC time
The ship position and UTC time in NMEA data are displayed on DSC standby screen. The date and
time are printed out when selftest results, and transmitting/receiving messages are printed in AUTO.
Thus, it is recommended to choose sentence RMC including position, time and date, or ZDA and a
sentence including position data.
NO
Sentence selection
of navigation aids
YES
Check the DIP switch setting.
[S5-#4] of CONTROL/MODEM board is OK?
*[S5-#4] --> ON : C.Loop
*[S5-#4] --> OFF: RS-422
NO
Exchange
CONTROL/MODEM board.
2. Countermeasures against Various Failures
No position data on
DSC standby screen
Check the input sentences.
(See Page 4-19.)
YES(OK) The connection is OK?
J5-#3:RD-A(+)
J5-#4:RD-B(-)
Check the system setup.
POSITION in "Setup menu" is
set at "AUTO"?
YES(OK)
Execute the loopback test.
Short-circuit between #1-#3 and
#2-#4 of IEC connector.OK appears?
7-8
Receivable sentences
- GGA
- RMC
YES
- RMA
- GLL
- ZDA
NO(NG)
NO
Rectify the wiring.
Set the system
--> POSITION AUTO
YES
See Page 5-7.
Failure of connected unit.
(NMEA data have problems.)