Self Test; Self Test When The System Is Turned On; Self Test From Function Menu - Nera Inmarsat-c Service Manual

5.2 Self test

The self test is started from the function menu or when the system is turned on. When
detecting the system trouble, the message followed by "TROUBLE:" appears.

5.2.1 Self test when the system is turned on

The test listed in table 5.2.1 is automatically started. When detecting "NG", change the
tested board.
Parts to be tested
U22
RF CON/CPU
board
U14

5.2.2 Self test from function menu

1. Press [F7/Option], [7] and then [3] to show the self test start display.
2. Select "Yes" and then press [Enter]. When the test is started, "Now testing" appears.
3. Fig.5.2.2 shows the display when the test is finished.
Note: When the optional GPS board is not installed in terminal unit(IC-215),
"**" appears on the result of the GPS test.
4. Press [Esc] to return the status monitor display.
Test content
SRAM Read/Write check
Read/Write check of CPU built-in
ROM
Fig.5.2.1 Self Test start Yes/No display
Fig.5.2.2 Test result display
5-5
Table 5.2.1 Test when the system is turned on
Display when detecting error
TROUBLE: RFCON CPU RAM NG.
TROUBLE: RFCON CPU ROM NG.
5.2 Self test