Furuno FS-1503 - 5.2 Self-test

5-2
5.2 Self-test
Both the main unit and the antenna coupler contain a self-test facility which can check
them for proper operation. The test checks transceiver circuit, LCD, keyboard, and an-
tenna coupler.
Note)
If the dummy board is not fitted, the test is carried out only for TX/RX board.
Transceiver Check
1. While pressing and holding down [TX] key, turn on the power.
2. Release the hand from [TX] when all indications appear on the screen. The test com-
mences and the display changes as follows.
R
Good
T
GoodE
T
GoodP
T
GoodP
Note) If an error is detected
“no Good” appears.
Receiver test
Transmitter test
(TX/RX Board)
Transmitter test
(AT-1503 TUNE)
Transmitter test
(with normal
output power)
Note) This display does not appear,
1) if the dummy board is not installed.
2) if system channel 9917 is not set to “1”.
3) if “TE no Good” appears in above test.
The flowchart of self-test algorithm is found on the next page.
3. Turn off the power after the test completed.