The error may be caused when the receiving channel is not set appropriately for
operating channels in the sea area, or when the receiver board or VHF Antenna is faulty.
See pages 3-24, 8-19 and 8-20.
Receiving targets get less or no.
Execute “[MENU] -> Diagnostics ->
For service -> Rx Test”.
Are the results of all the tests of RX1, RX2 and DSC OK?
･ RX1 NG: Failure of RX1 board
･ RX2 NG: Failure of RX2 board
･ DSC NG: Failure of DSC board
･ All NG: Failure of DSC board, and MAIN board
Is “ANT” error shown? Check the antenna or
Antenna coaxial cable.
Are “CH & PWR Settings”
specified as “AUTO”?
Set “CH SET” to “AUTO” in
“[MENU] -> Diagnostics -> For service -> CH & PWR Settings”.
Is the setting appropriate for receiving channels of the sea area?
Configure the setting of the sea area in ”[MENU] -> Channel settings -> Edit channel”.
Check the currently operating channels in ”[MENU] -> Channel settings -> View channel”.
Can be received when VHF RT Antenna is used?
Failure of VHF Antenna or DB-1.
Failure of TX board.
Yes
No
Yes
No
No
Yes
No
Yes
Yes
No
8.9 Trouble Shooting
8-42
Case 5) Received targets are not displayed on the Radar (FAR-2xx7 series) The error may be caused due to the failure of wiring or setting. Check by the I/O signal monitor test on the FAR and AIS both. See pages 3-6, 8-21, 8-22 and AP4-3.
Received targets are not displayed on the radar.
Is the setting on the FAR, OK? Set the setting of AIS DISP to “ON”.
Is the connection correct?
The connection port of the Radar is COM2 to COM4.
Are the settings of “Mode” and ”Speed”
for the Radar connection port OK?
Is the result of “I/O Monitor” test of the radar and AIS both, OK?
Checking procedure as follows:
- FAR-2xx7; Execute “Self test” -> Check “AIS (VDO/VDM)”
- FA-150; [MENU] -> Diagnostics -> For service -> I/O Monitor Note: A message (ABM) should be sent properly from the FAR.
Change the Radar type to “C or B”.
(Operation on AIS display differs according to the Radar type. Refer to the Service Manual.)
Do the loop back test.
[MENU] -> Diagnostics ->
For service -> I/O port test
- If the result is NG, the error is caused due to the failure of the MOT board or MAIN board.
- If the result is OK when the connection port of the Radar is changed, the error is caused due to the failure of the MAIN board.
Setting as follows:
- Mode: EXT display - Speed: 37.8kbps
FA-1501:
Chapter 9. Q & A
9-1
Q1: Strange characters are displayed on the target list. What do they mean?
- No mark: Vessel
- Search and Rescue Aircraft: S (Detecting from Msg. 9) - Aids to Navigation: ª (Detecting from Msg. 21) - AIS Base Station: (Detecting from Msg. 4)
Q2: It seems to take long time to display the Name of Ship. (See page 1-2.) The Name of Ship, Call Sign, etc. are static data is transmitted every 6 minutes. In addition, they are transmitted when any data change occurs or polling is received from other ship or VTS. Wait for a while until the static data is received.
Q3: Does FA-150 have a polling function?
FA-150 has no polling function. However, on the PC-version display (PC MKD), polling can be carried out.
PC-version display software: FAISPC MARK2 is optional.
Q4: Second FA-1502 can be connected? (See page 3-28.) Yes, it could. Connect the second FA-1502 to COM2 or COM3.
However, FA-1502 power control lines SW-H and C should be connected in parallel with the DISP port power control line.
Operation is equal for both No. 1 and No. 2 but [MENU] -> USER SETTINGS can be set independently, except the setting of Long Range of this menu.
Q5: COMMUNICATION ERROR is displayed. Where should I check?
It is displayed on FA-1502 when communication with FA-1501 is disabled. Check if FA-1501 power supply switch is turned ON. Check if the DISP port is correctly connected. See page 8-37.
Q6: Are settings of DIM and CONTRAST stored in memory even if the power is turned off?
Both settings are stored in memory. However, turning off the power supply with the contrast set to 35 or lower automatically sets the contrast to 36 when the power supply is turned on next time.
Chapter 9. Q & A
Chapter 9. Q & A
9-2
Q7: Where is the tanker mode setting carried out?
There is no setting such as “the tanker mode is turned ON/OFF.” Under the following conditions, the system enters the tanker mode in which the transmission output is reduced to 1 W automatically.
- When No. 80: TANKER is chosen in [MENU] -> INITIAL SETTINGS -> SET SHIP TYPE;
- When MOORED is chosen in [NAV STATUS]; and - When the ship speed is 3 knot or less.
When POWER becomes 1 W in [MENU] -> CHANNEL SETTINGS -> VIEW CHANNEL, the system is in the tanker mode. In addition, when the system enters the tanker mode, TX POWER CHANGED 1W popup display appears.
When the ship speed exceeds 3 knot with [NAV STATUS] set to MOORED, popup displays TX POWER CHANGED 12.5W and CHANGE NAV STATUS? appear.
Users are prompted to change NAV STATUS with the message “CHANGE NAV STATUS?”
Q8. Is it possible to connect sensors to COM1, COM2 and COM3 ports?
(See page 3-11.) Yes, it is, but it is the principle to connect the sensor input to COM4, COM5, or COM6. Note that priority of COM1, COM2, and COM3 are not higher than to COM4, COM5, and COM6. The related setting is [MENU] -> INITIAL SETTINGS -> SET I/O PORT -> SET PRIORITY. COM1, COM2, and COM3 ports do not have this kind of setting.
Q9: Is NMEA Ver-1.5 able to be used as sensor input? (See page 8-8 and 30.) No, NMEA Ver-1.5 cannot be used as sensor input. The AIS is required IEC61162 sentence. Sentences of NMEA Ver-1.5 are no check-sum field.
Reference:
It is possible to set whether or not the check-sum is carried out in [MENU] ->
FOR SERVICE -> OTHER -> CHECK SUM by carrying out the special operation.
Q10: How to check sensor input. (See pages 8-22 and 23.)
Choose the port to monitor the sentence by [MENU] -> FOR SERVICE -> I/O MONITOR. Irrespective of NMEA Ver, the input data can be monitored. However, the monitor displays only in uppercase. Lowercase is displayed smeared: half-toned, to which care must be taken.
If you cannot monitor the sensor data, check the connections of sensor port.
Other way, the I/O check of each port can be carried out by the loop back test. The test is carried out by [MENU] -> FOR SERVICE -> I/O PORT TEST.
Chapter 9. Q & A
9-3
[OWN DYNAMIC DATA]
22/JUN/2005 06:43:20 LAT : 34 27.8412’N LON : 135 25.1232’E SOG : 10.0kt EXT GPS COG : 57.0 HDG : 123 ROT : R10.0 /min PA : H RAIM : USE
Q11: How to check whether or not transmission is taking place.
(See pages 8-27 and 32.) Simple methods to check whether or not transmission is taking place as follows.
- [TX] alarm is not displayed. This alarm detection is found from the Tx output power.
- When the antenna mark blinks to the transmission interval in the OWN DYNAMIC DATA screen, the message is being transmitted.
- When CR6 of TX board blinks to the transmission interval. When the Tx output power is about 0.5 W or higher, CR6 goes on.
- When the VF value increase in [MENU] -> FOR SERVICE -> OTHER -> A/D MONITOR, transmission is being taking place. In the no transmission period, the VF value is 20 to 25, when transmission is carried out at 12.5 W, the VF value increase to 200 to 250, and at 2 W, the VF value increases to 75 to 125.
Q12: What does the antenna mark on the top right of a screen for OWN
DYNAMIC DATA? (See page 8-32.)
Antenna mark is displayed.
It indicates that the system is being synchronized with UTC of built-in GPS. The antenna mark disappears if the system is not synchronized with the built-in GPS.
Antenna mark blinks.
It indicates that transmission is being carried out.
Q13: Can FA-150 receive Distress alert or Individual calling of VHF DSC?
FA-150 cannot receive Distress alert, Individual calling, All ship calling, etc.
Even if it is the same channel (CH70) and signal format as VHF DSC, messages unrelated to AIS are not decode.
Q14: The alarm output (See pages 8-2 and 3-22.) In AIS related alarm condition, alarm buzzer comes on and EXT ALM is activated, too. This condition continues until the ALM ACK signal is turned ON, any of the panel keys is pressed or the alarm event is removed.
In addition, the alarm is outputted by ALR sentences at every 25 seconds. If there is no error, the content of the ALR sentence, that is, messages “Alarm is General Failure and alarm condition is in the normal range (V)” are outputted at every 2 minutes. For the related setting, EXT ALM output form can be changed. The setting is carried out through [MENU] -> FOR SERVICE -> OTHER -> ALARM MODE.
Chapter 9. Q & A
9-4
Q15: What is the USCG mode? (See page 8-29.) This mode is the function special for USCG and is the mode to change over Class A mode, Rx only mode or Restricted mode. These functions are changed over by the [DIM] key. SILENT ON/OFF is set by;
Turn on power while pressing [MENU] and [ENT] key, then press [MENU] -> FOR SERVICE -> OTHER -> SILENT MENU after carrying out the special operation.
[MENU] RX ONLY MODE MSG
SENSOR STATUS INTERNAL GPS USER SETTINGS INITIAL SETTINGS CHENNEL SETTIONGS DIAGNOSTICS
Q16: What is optional FAISPC-MARK2? (See AP5.) FAISPC-MARK2 is PC-version display software.
PC is used by connecting it to the PC port or LAN port (optional).
Q17: I want to demonstrate FA-150 for an exhibition. (See page 8-24.) Set it to the simulator mode. No connection of sensors is required.
This setting is carried out in [MENU] -> FOR SERVICE -> OTHER -> SIM MODE.
There are two kinds of this mode which simulate 5 vessels navigating the Osaka Bay area and 9 vessels navigating in the Tokyo Bay area.
In addition, same as normal condition, VDM and VDO sentences: simulation-related data are outputted.
For static data, such as MMSI, IMO No., ANT POS, and others, set parameters are used. The position data forms the status same as that when the data was inputted from the GPS. In addition, once the system enters the simulator mode, “S” is displayed in the upper right end of all the screens. This mode continues to hold this function even if the power is turned off.
Any one of the modes which are set is displayed.
- CLASS A MODE (Normal mode) - RX ONLY MODE (No Tx)
- RESTRICTED (Rx and Msg.6 and Msg.8 are allowed to be transmitted)
Chapter 9. Q & A