Control Unit: Fs-2575C; Antenna Coupler - Furuno FS-1575 Service Manual

05P0861
T-IF
05P0861A
FET 05P0872
P-SW 05P0871
PWR 05P0874
SW
05P0873
REG

2. Control unit: FS-2575C

Board
Type
Name
PANEL 05P0844
C-IF 05P0853
C-CPU 05P0852

3. Antenna coupler

Board
Type
Name
AT-5075
COUP
05P0875
AT-1575
COUP
05P0883
CONFIDENTIAL (internal use only)
This confidential document is used only by FURUNO authorized persons.
It is strictly prohibited to reproduce the document in whole or in part without prior written permission of FURUNO.
Serves as a relay board between External equipment and
FS-2575 the Transceiver unit. This T-IF board has built-in MMSI
FS-5075 switch and jumper that is used to make setting of ALARM
contact output (to N.C or N.O).
Provides the same function as above.
FS-1575
A "Remote" connector is mounted on this board.
Turns ON and OFF the power supply with the FET power
switch. The FET power switch circuit is the same as that on
the P-SW board.
FS-5075
This FET board outputs 24VDC power. It is supplied to the
SW REG board that generates 42VDC power. The FET
board is controlled by the P-SW.
Consists of a power supply ON/OFF circuit with the FET
power switch, low voltage (18 to 20VDC) protection
Common circuit, and overvoltage (33VDC) protection circuit. This
P-SW board outputs 24VDC power. It is supplied to the
SW REG board that generates 42VDC power.
Converts 24V power outputted from the P-SW board to
Common 15VDC/14.3A and 5VDC/2.5A and outputs them as a
switching power supply.
Serves as a non-isolated power supply board that outputs
42VDC/35A power to be supplied from the 24VDC power
FS-2575
supply unit to PA.
FS-5075
42VDC power is generated by combining 18V switching
power output and 24VDC power input.
Applicable
Model
Consists of color LCD, LCD backlight, operation key, and
Common
Handset interface.
Consists of Transceiver unit, NBDP terminal unit, interface
Common
with Printer, and SP power-amplifier.
Performs communications with the Transceiver unit, NBDP
terminal unit, and printer, and also controls LCD and panel
Common keys.
This C-CPU board consists of MAIN CPU, CODEC,
FPGA, SDRAM, and FLASH ROM.
Applicable
Model
FS-2575
Serves as an antenna matching circuit.
FS-5075
FS-1575 Provides the same function as above.
7-8
7.1 System Configuration
Table 7.1.3 Control Unit
Function
Table 7.1.4 Antenna Coupler
Function