Hub Board Led - Furuno Felcom 250 Service Manual

3. HUB Board LED

CR5
S2
S4
S2, 4:All OFF
LED
CR4 (chip2012, GREEN): LED for debugging CPU
Turned off when CPU is not activated yet, blinking when CPU is activated.
[Detailed information]
In normal cases (All DIP-SWs are OFF)
The LED repeats being lighted -> turned off at an interval of 300 ms
When research / inspection mode is activated (DIP-SW 1 is set to ON)
The LED repeats 2-time blinking
When maintenance mode is activated (DIP-SW2 is set to ON)
CR4 The LED repeats 3-time blinking
When only the boot loader is activated
The LED repeats ON/OFF at an interval of 1 sec.
When the status does not change to normal mode, maintenance mode, or to
research / inspection mode.
When HUB CPU is activated (Linux activated), the LED will not have its status
changed.
It would take approx. 1 min. until the LED lighting operations described above
are established.
CR5 (chip2012, GREEN): The power indicator for the HUB board
CR5 Lighted when the power of the HUB board is turned on, and turned off when
the power of the HUB board is turned off.
CR15 (chip2012, GREEN): LED for debugging FPGA
CR15
Turned off when FPGA is not activated yet, and blinking after activated.
10.7 LED and DIP Switch for the Communication unit
CR4
CR15
Table 10.7.7 The LED for the HUB board
Description
10-38