Furuno GP-1850WD - Manual (Page 29)

4. INCORPORATION OF DGPS BEACON RECEIVER KIT (for GP-1850W)
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Note: When reattaching the cover, confirm the following parts are attached.
•
Inside of the cover: Shield gasket, GN gasket (See the figure below.)
•
On ANLG Board: Connector gasket (See the page 16.)
GN gasket
Shield gaskets
Checking the beacon receiver
1. Press the [MENU] key.
2. Press the CONFIGURATION soft key.
3. Press the SYSTEM MENU soft key.
4. Press the SELF TEST soft key.
5. Press the MEMORY•I/O TEST soft key to display the following message.
PROGRAM:OK
NO.1418260XX
RETURN
TEST
SRAM:OK
DRAM:OK
PORT1:OK*
PORT2:OK*
INTERNAL
BATTERY: OK
GPS
RECEIVER:OK
NO.48502370XX
BEACON
RECEIVER:OK
NO.08501781XX
NO.
*Special connections are required to check these ports.
Otherwise, "--"(bar) appears.
Memory, I/O Test Display
6. Confirm that BEACON RECEIVER: OK is displayed.
7. Press the RETURN soft key.
8. Press the [PLOT] key to return the plotter display.