Furuno FSV-75 Operator's Manual page 199

10.10.3 Board test
The board test checks all the circuit boards in the system. To conduct this test, select
[2 Board Test] from the [Test] menu.
Press the MENU/ESC key to close the results.
TRCPU
105-XXXX-XX.XX
Revision = 0
TRX1
105-XXXX-XX.XX
Revision = 0
TRX3
105-XXXX-XX.XX
Revision = 0
TRX5
105-XXXX-XX.XX
Revision = 0
For any NG, contact your dealer for advice.
How to read the test results
(1) TRCPU board information and status results.
Results appears as "OK" (white text) or "NG" (red text).
(2) HCTL board information.
(3) TRX board information and status results.
Results appears as "OK" (white text) or "NG" (red text).
BOARD TEST
ROM = OK
RAM = OK
FRAM = OK
ROM = OK
RAM = OK
TFP = OK
T2S = OK
ROM = OK
RAM = OK
TFP = OK
T2S = OK
ROM = OK
RAM = OK
TFP = OK
T2S = OK
Press Menu/Esc key to cancel.
S2T = OK
RFP = OK
FFP = OK
S2R = OK
R2F = OK
TRX2
105-XXXX-XX.XX
Revision = 0
TRX4
105-XXXX-XX.XX
Revision = 0
OK: Status is normal; NG: Error detected
10. MAINTENANCE
HCTL
105-XXXX-XX.XX
Revision = 0
ROM = OK
RAM = OK
TFP = OK
T2S = OK
ROM = OK
RAM = NG
TFP = OK
T2S = OK
XX: Program number
10-11