Alarm Unit: Ic - Furuno FS-1575 Service Manual

5. ALARM UNIT: IC-350

This test menu will be enabled when selecting [MENU] -> 9.SERVICE -> 7.OTHER ->
2.ALARM UNIT -> "CONNECT."
The alarm unit：the IC-350 tests are conducted to ensure communication between
IC-350 and T-CPU. The IC-350 is determined to be OK when the T-CPU transmits the
"OPTD200" command to the IC-350 and the IC-350 responds to this command.
TB7
#3
TD-A
#4
TD-B
#5
RD-A
#6
RD-B
IC-350
Fig. 6.1.4 ALARM UNIT Test Circuit Diagram
CONFIDENTIAL (internal use only)
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.
TB7
#5
IC RD H
IC RD C
#6
#3 IC TD A
IC TD B
#4
T-IF
FS-xx75T
6-5
U5
5V
IC RD
Q5
IC TD
MOT
T-CPU
6.1 [MENU] -> TEST