Furuno FS-2570 - 6 DESCRIPTION of CIRCUITRY and DEVICES (FCC Rule Part 2.1033); Function of each Semiconductor or Active Device

Pub. No.: SB-2241
Date : November 1, 2002
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6 DESCRIPTION OF CIRCUITRY AND DEVICES (FCC Rule
Part 2.1033)
6.1 Function of Each Semiconductor or Active Device
(1) Antenna Coupler unit AT-1560-25
COUP Board: 05P0528
Symbol Component Type Function
Q0001 TR 2SC2498 RF AMP
Q0002 TR 2SA1020-Y CPU VCC CONTROL
Q0003 TR 2SC1815-Y CPU VCC CONTROL
U0001 MOS LOGIC TC74HC390AP RF SIGNAL COUNTER
U0002 IC µPD7001C A/D CONVERTER
U0003 MOS MPU TC74HC14AP CONTROL
U0004 IC M51953BL RESET CONTROL
U0005 IC AN6705F 5 V REGULATOR
U0006 IC NJM2403D P.D. CHECK
U0008 MOS MPU 05S0522-0 CPU
U0009 IC M54563P RELAY DRIVE
U0010 IC M54563P RELAY DRIVE
U0011 IC M54563P RELAY DRIVE
DUMMY Board: 05P0610
None
(2) Transceiver unit FS-2570T
T-CPU Board: 05P0732
Symbol Component Type Function
Q0001 - 0002 TR DTC114EKAT146 RCV BZ CONT
Q0003 - 0004 TR DTC114EKAT146 DMC CONT
U0001 IC M51957BFP C61J CPU RESET CONT
U0002 Ceramic Oscillator CSTCS12.5MTA-TC CLOCK OSC
U0003 MOS MPU MB911101PF-G-BND-R CPU
U0004 MOS FLA MBM29F800TA-70PFTN MEMORY
U0005 MOS EEPROM AT28C256-20PC MEMORY
U0006 - 0007 MOS SRAM K6T1008C2E-GB70T MEMORY
U0008 MOS MPU M38881M2-153GP CPU
U0009 Ceramic Oscillator CSTCS12.5MTA-TC CLOCK OSC
U0010 IC AM26LS31CNSR RS422 DRIVER