Furuno GP-1850W - Manual (Page 84)

12. MAINTENANCE & TROUBLESHOOTING
12-4
PROGRAM: OK
No.14518260**
RETURN
TEST
SRAM: OK
DRAM: OK
PORT1: OK*
PORT2: OK *
INTERNAL
BATTERY: OK
GPS
RECEIVER: OK
No.48502060**
BEACON
RECEIVER: OK
No.08501820**
No.
* : Special connections are required to check these ports.
Otherwise, "--" appears.
**: Program Version No.
Test menu
5. Press the MEMORY•I/O TEST soft key to
start the test. Test results and program
nos. are shown as below.
PROGRAM: OK
No.14518260**
RETURN
TEST
SRAM: OK
DRAM: OK
PORT1: OK
PORT2: OK
INTERNAL
BATTERY: OK
GPS
RECEIVER: OK
No.48502060**
BEACON
RECEIVER: OK
No.08501820**
No.
: Special connections are required to check these ports.
Otherwise, "--" appears.
**: Program Version No.
Memory, I/O test results
6. The test runs continuously. To return to
the TEST menu, press the RETURN soft
key.
Note: BEACON RECEIVER results only
appear on GP-1850WD.
Keyboard test
This test checks all controls for proper
operation.
1. Press the [MENU] followed by the
CONFIGURATION, SYSTEM MENU and
SELF TEST soft keys to display the
TEST menu.
2. Press the KEYBOARD TEST soft key to
display the screen for testing the
keyboard.
KEYBOAD
TEST
PRESS
"CLEAR" KEY
3 TIMES
TO RETURN.
▲
▲
▲
▲
Keyboard test
3. Press each key one by one. The pressed
key’s on-screen location turns black if the
key is functioning properly.
4. To escape, press the [CLEAR] key three
times.