Furuno NX-700B Service Manual page 95

Key Test
3. When the Memory test is complete, press any key. The next Key Test starts. The
screen shown below appears. A mark corresponding to the pressed key is highlighted
every time a key is pressed. Check all the keys except the power key. When all the
keys are highlighted, or when no key is pressed for 10 seconds, the next LCD Test is
entered.
Key Test
If there in no operation for
10s. the screen changes
LCD Test
4. In the LCD test, the contrast of the screen automatically changes in 10 steps.
0
RX Test
5. When "Hit any key" is displayed, press any key. RX test starts.
RX Test is a reception test performed to check whether a signal is correctly received
when a test signal is applied to the antenna input of the RCV board on NX-7001.
The level of the test signal is approximately 10 dBµV. During the reception test,
received signals can be monitored even if "OFF" is selected in the setting of
"[MENU] -> System Signal Monitor".
The Int'l Rx Data is a test message received at 518 kHz. The Local Rx Data is a test
message received at 490 kHz or 4209.5 kHz which is selected in
"[MENU] -> NAVTEX -> Local Channel".
Judgment of OK or NG
When the same message as the sent message is received, "OK" is displayed as the
"Result". If an error of even one character is included , the "Result" shows "NG".
The character of the error is marked with "*".
.
1
7-3
[LIST] key ON -> ■ ->
[LIST] key ON -> □ ->
[LIST] key ON -> ■ -> -----
9
7.1 Self Test
Hit any key.