Function Of Each Unit - Furuno FE-700 Service Manual

1.2 FUNCTION OF EACH UNIT

Display Unit (FE-701 )
Board/Unit
MAIN Board
(02P6280)
ANLG Board
(02P6281)
PNL Board
(02P6250)
MEM Board
(02P6282)
Color Display
(EDTCA14QCF)
Distribution Box (FE-702 )
Board/Unit
CONE Board
Matching Box (MB-502/MB-504 )
Matches impedance between transmitter/receiver and transducer.
Transducer Switching Box ( EX-8 )
Selects the transducer to be used.
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1) Processes depth signal by the CPU and the gate array, and converts them
into the video signal.
2) Receives panel signal.
3) Detects the depth.
4) Generates the "SHALLOW DEPTH ALARM".
5) Includes a LCD I/F and an inverter for LCD backlighting.
6) Communicates with external equipment in IEC61162-1 and RS232C data
format.
Consists of a power circuit, a depth sounder circuit and an interface circuit.
Consists of keys, rotary switches, VRs, LEDs for panel illumination and a
buzzer.
1) Memorizes the depth and time for 24 hours.
2) Contains a backup battery and a clock circuit.
Consists of an LCD and a cold cathode tube for LCD backlighting.
1) Interfaces the I/O signal between the Display Unit and External Unit.
2) Converts 100/115/200/230 VAC to 24 VDC for the Display Unit.
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1.2 FUNCTION OF EACH UNIT
Functions
Functions
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