Furuno FS-1503 - 2. CONTROL

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2. CONTROL
Providing a BK line requires an optional CONTROL board. Current capacity of
CR1,Vobc) in the BK line is 1A.
U3 (PC357NT)
RX MUTE
CONTROL
(05P0459)
CPU Board
Receiver
CONTROL
1- GND
2- NC
3- TX KEYED
4- RX MUTE
5- BK 12V (+)
6- BK 12V (-)
7- NC
BK +12 V/24 V
CR1
Q3
(2SD799)
(V06C)
TX KEYED
+5 V
U5 (PC357NT)
RX MUTE
TX KEYED
L1
L2
CR2 (V06C)
BK 12 V +
BK 12 V -
JP1
JP2
12 V +
12 V -
BK RL
BK +
CONTROL
or
Q2
TX KEYED/
RX MUTE
Figure 2-29 CONTROL Board