Furuno PG500R Operator's Manual page 9

Sequence of Start up test
LED Sequence
AUTO TRUE CALB
8 4 2
AUTO TRUE CALB
8 4 2
AUTO TRUE CALB
8 4 2
AUTO TRUE CALB
AUTO TRUE CALB
8 4 2
AUTO TRUE CALB
Normal operation
STATUS
1
0.5 seconds
STATUS
1
0.5 seconds
STATUS
All LEDs go off.
1
0.5 seconds
STATUS
0.5 seconds
STATUS
All LEDs go off.
1
0.5 seconds
STATUS
Twice
0.5 seconds
: On
: Off
: Blinking
2
1. OPERATION
Test name
Program Version No.
ROM, RAM check
Deviation status