Block Diagram Of Display Unit - Furuno FR-2115 Service Manual

2.2 Block Diagram of Display Unit

MOTHER
Board
(03P9251)
HD
BP
VIDEO
Level Adj.
EXT HD
EXT BP
EXT TRIG
EXT VIDEO
Level Adj.
Photo
NAV DATA
Coupler
SPEED LOG
Photo
AD-100
Coupler
GYRO
Board
(64P1106)
GYROCOMPASS
A/D CONV.
PWR Board
POWER
(Optional)
TO RF UNIT Regulator
TX HV
Ships Mains
DC 24/32 V,
AC 100/110/115 V or AC 220/230 V
INT Board(03P9252) MOTHER
Board
(03P9251)
Selection SW
Buffer
(Menu-Selection)
Scanner Unit
Buffer
HD,BP,
TRIG,VIDEO
Buffer
Buffer
RJ-7 or
Main Radar
EXT HD,EXT BP,
Buffer
EXT TRIG,
EXT VIDEO
Buffer
Buffer
Noise
Filter
HALL 1/2
Magnetism
Overcurrent
Detector
Detector
Protector Power Degauss
DEGAUSS Board(PDM9025)
AC:03P9245
Rectifier
DC:03P9246
SPU Board(03P9253)
VIDEO
Signal
Video Amp.
A/D CONV.
Proeessor
Level Adj.
HD,BP
Buffer
Gate Array
(G/A)
VIDEO HD,BP
A/D CONV. Front end
SPD
CRS
D.P RAM
(Optional)
D.S.P
ARP Board(18P9002)
PM Board (03P9225)
+12 V
DEGAUSS
Ships Mains
AC 100/110/115 V
or
AC 220/230 V
2-2
To degauso coil
H SYNC(64 kHz),
Color palette
V SYNC(60 Hz),
D/A CONV.
DOT CLK(108.5 MHz)
RP Board(14P0298)
Priority Video
Scrolling
(layering)
Memory
H SYNC/ VRAM
V SYNC/
DOT CLK
From ACRTC
CPU
Multi-
AGDC
plexer
L/L,
S/C
Buffer D.P RAM
PNL Board(03P9255)
SPD
CRS
CPU
D.P RAM
MAIN
CPU
PAL Board
(03P9254)
Switches
Switches
PM ON
(Radar Picture,
(PM ON/OFF,
Degauss) Menu)
(Optional)
Performance
Monitor
CRT
P.F. Signal from PWR Board
CPU
Buffer
(Optional)
Card
To G/A on SPU
I/F Board
(14P0299)
Level CONV.
(TTL RS232C)
Chart Card/
ERC Card/
RAM Card
(Optional)
PAR Board
TB301
(03P9256)
Trackball
FR2115-SME-22