AE–1800 Instruction Manual
User-Level Troubleshooting
5 . 1 0 . N o M e s s ag e A l ar m O u t p u t
The following description of the symptom assumes that your NAVTEX receiver was
properly working for some time after initial installation time.
Symptom
Suggested Solution
No alarm output is available from
the rear panel ALARM connector.
1. The alarm function for type–A and type–B
messages are initially disabled. To turn it
on, refer to paragraph 4.14.
2. Run the self–diagnostic tests via the steps
in paragraph 4.13, and check the results
of the RAM and ROM tests. If the test
result is “
FAILED
,” suspect that the Main
PCB has become faulty. Ask your
dealer/qualified engineer to check the
PCB by replacing.
3. Suspect that some of the connections
to/from the connector have loosened or
the Main PCB has become faulty. Ask
your dealer/qualified engineer to check
the related wiring harness terminations.
5 . 1 1 . N o E x t e r n a l O u tp u ts
The following description of the symptom assumes that your NAVTEX receiver was
properly working for some time after initial installation time.
Symptom
Suggested Solution
No messages can be output from
the memory to the printer or I / O
DATA port or to the INS p or t
despite correct connections to the
appropriate rear panel connector.
1. Check to be sure that all ports are enabled
( set to
ON
) and that the communications
protocol of your application matches that
of the port (rear panel connector) in use.
See paragraph 4.12.
2. Press
and then check that the
memory storage (
ME
), printer port output
(
PR
) and INS port output (
IN
) settings are
set to the “
SL
” status. See paragraphs 4.8
and 4.9 for details.
3. Suspect that some of the connections
to /from the connectors have become
loosened or broken. Ask your dealer/
qualified engineer to check for faulty
wiring harness terminations.
4. Suspect that the Main PCB has become
defective. Ask your dealer/qualified
engineer to check the PCB first and
replace it if necessary.
