Q17. Will The Program-Ver. Indication Remain The Same Even After Updating The Program; Q18. Is The Main Program Commonly Used For Fm-8800D And Fm-8800S; Q19. I Cannot Update The Program/How Do I Update The Program? (Case 1); Q20. I Cannot Update The Program/How Do I Update The Program? (Case 2) - Furuno FM-8800D Service Manual

Q17. Will the Program-Ver. indication remain the same even after updating
the program?
An indication shown by [MENU] -> PROGRAM VERSION will not change.
When confirming a detailed program version, select [MENU] -> SYSTEM ->
TEST -> CPU -> PRG. VER and then, press [1] key 5 times while pressing
[SHIFT] key. The detailed version will appear.

Q18. Is the Main program commonly used for FM-8800D and FM-8800S?

Yes it is. A change of the program is automatically carried out by detecting
whether DUP RX board is installed or not.

Q19. I cannot update the program/How do I update the program? (Case 1)

If there is no problem with the PC setup or with the connection, there probably is
a problem with RS-232C/RS-422 level converter. The speed in which the
program is downloaded from PC to the Transceiver unit is 57.6 kbps.
Is the level converter speed even faster?

Q20. I cannot update the program/How do I update the program? (Case 2)

Am I supposed to select COM-1 for serial port?
If you want to use a serial port other than COM-1 then, you would have to
update the batch file of the program that you want to update or select COM-1 for
serial port on PC.

Q21. Remote Handset is not working properly.

Each Remote Handset has to be assigned different ID number.
Have you set up different ID number? The factory setting is "1".
Communication between Remote Handsets and Transceiver unit is made
possible on the basis of this ID number. A communication between Remote
Handsets with the same ID cannot be carried out.

Q22. I cannot receive DSC signals although telephone is working just fine.

There may be a problem with a CH70 WR antenna or CH70 RX board.
1) Carry out a self-test. If the result is OK, electrical connection between
CH70 Rx board and CPU board is OK then CPU board is fine.
2) Try exchanging CH70 WR antenna with RT antenna and then check it
again.
3) Carry out [MENU] -> SYSTEM TEST -> T/A.
This test receives RX signal on CH70 RX board, modulates it on CPU
board, and then outputs it to Handset ear-speaker and the speaker of the
Transceiver unit as AFSK signal. If you cannot hear a DSC signal or noise,
the, there may be a problem with CH70 RX board.
See page. 7-10.
9-4
Chapter 9. Q & A
See page. 5-8.
See page. 7-2.
See page. 7-6.
See page. 4-4, 5-23.
See page. 8-8.