Furuno FAR-2107 Series Service Manual page 203

Fuse (2 A)
LED1 (Always lights.)
Fig. 2.5.5 DVI I/F Board
A J5 B
(Jumper)
Fig. 2.5.6 RGB Buffer Board (03P9229B)
2-42
A J4 B
(Jumper)
A J6 B
2.5 Optional Unit