Board Led And Dip Switch For The Communication Unit; Power Board (16P0266) - Furuno Felcom 250 Service Manual

10.7.2 Board LED and DIP Switch for the Communication unit

1. POWER board (16P0266)

R123: SW power
oscillating frequency
adjusted (70 ± 1 kHz)
LED
Red light turns on when shutdown by the 48 V or 5 V output.
CR115
To be rebooted by switching between ON and OFF for the power SW.
Red light turns on when shutdown by 42 V output.
CR215
To be rebooted by switching between ON and OFF for the power SW.
Reference) Adjusting R123
The switching power oscillating frequency will be adjusted.
Connect a Frequency counter between TP105 and TP202 (GND) so that the
frequency will be 70 kHz ± 1 kHz.
10.7 LED and DIP Switch for the Communication unit
CR215: Lighted when shutdown by 42 V
CR115: Lighted when shutdown by the output of 48 V or 5 V
Table 10.7.2 LED for the POWER board
Description
10-35