Test]: Nbdp; Pcb Version] - Furuno FS-1575 Service Manual

3. [TEST]: NBDP

This test menu is used to conduct loop-back tests on the [NBDP] port and
communication tests with NBDP terminal.
Start the tests with a loop-back test. When the port passed the test, "OK" will be
displayed. When failed, "---" will be displayed.
Note) Loop-back test:
Cause a short circuit between "#2: NBDP SD" and "#3: NBDP RD" of the
[NBDP] port.
When "NG" is displayed, start a communication test. When the port passed the test,
"OK" will be displayed. When failed, "NG" will be displayed.
For example, when conducting a communication test with the [NBDP] terminal
connected, "---" will be displayed because the terminal failed the loop-back test,
proceeding with the subsequent communication test. When the terminal passed this test,
"OK" will be displayed. When failed, "NG" will be displayed in red.
Loop Back Test

4. [PCB VERSION]

This test menu is used to display the version of board mounted to the FS-2575C unit,
respectively.
For details, refer to information on page 6-27.
Step-2) C-CPU PCB (2/4) Window
Pressing the [ENTER] knob will switch the display to the (2/4) window and
automatically conduct LED tests.
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This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
FAILED
----
PASSED
OK
6-33
FAILED
Comm. Test
PASSED
6.5 SERVICE: TEST
NG
OK