Furuno FS-1570 Service Manual page 109

4.4.3 IB-581
To update IB-581;
1. Insert the floppy disk which contains the latest program into the FD drive.
2. Quit the terminal program of NBDP. Press [F2] key while pressing [Alt] and [Fn]
keys. The prompt "A:¥FS¥TERMINAL>" will appears.
3. Press [B][:] and [Enter] to select drive B. Prompt "B:¥>" appears.
4. Press [U][P][5][8][1][E] and [Enter]. Updating starts automatically. Follow the
instruction that appears.
When updating Russian version program:
Press [U][P][5][8][1][R] and [Enter].
5. The updating is complete with prompt "A:¥>".
6. Turn the terminal unit off and on it again.
7. To check the program number;
1) Run "Self test" of [F6] system menu.
2) Press [F1] while holding [Fn] and [Alt] to show the program version in detail.
How to reinstall IB-581 program
IB-581 is used commonly to Inmarsat B/C, NBDP(DP-6). To use IB-581 programmed
for another system, the program is reinstalled by following the steps below.
1. Terminate the terminal program. For FELCOM81, press [F2] while holding [Alt]
and [Fn]. Select "YES" and then press [Enter]. Prompt "A:/>" appears.
2. Type [F][O][R][M][A][T][Space][A][:][/][S] followed by [Enter]. Drive A is
formatted and the system file is loaded.
3. Follow the instruction that appears.
"Insert new diskette for drive A: and press ENTER when ready"
"Checking existing ---- Proceed with Format (Y/N)?"
"Formatting ----- Volume label (11 characters, ENTER for none)?" [Enter]
"Volume Serial ---- Format another (Y/N)?"
4. When updating is complete, prompt "A:/>" appears.
Message
4-9
4.4 Updating Program
Key to be pressed
[Enter]
[Y] and then [Enter]
[N] and then [Enter]