Furuno FS-1570 - TEST Function in DSC SETUP Menu; Unlocking TEST Menu

6.5 TEST function in DSC SETUP menu
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6.5 TEST function in DSC SETUP menu
The following describes the factory-test. To unlock the test menu, a password is required.
6.5.1 Unlocking TEST menu
To unlock the TEST menu;
1. Press [6/SCAN] to show the DSC display.
2. Press [SETUP] to show the DSC setup menu.
3. Move the cursor over [3/TEST] and then press [ENT]. The “Test function” menu
appears with “PROTECTION ON” message.
4. Enter the password ([x][x][x][x][x][x]) to unlock the menu. Table below summarizes test
items.
Table 6.5.1 TEST items in Test function
Test function Description
TONE TX Outputs TONE to check the modulator output in the transmitter.
REMOTE Loop-back test for REMOTE ports
EXT ALARM Checks IC-303-DSC control signal
EXT ALERT Checks IC-302-DSC control signal
PANEL PCB Checks FS-2570C panel control signal
T-CPU PCB Checks T-CPU board control signal
C-CPU PCB Checks C-CPU board control signal
TX/RX PCB Presets frequency for PLL and receiver adjustment
W/R PCB Presets frequency for PLL and receiver adjustment
TA TEST Used at type approval