2-1
SECTION 2. INSIDE
VIEWS
• LOGIC UNIT
+3.3 V REGULATOR
(IC4)
RESET IC
(IC10)
CI-V INTERFACE
(IC5)
CPU
(IC1)
CPU CLOCK
(X1)
DSC DECODER
(IC11)
NMEA LINE BUFFER
(IC12)
DATA LINE BUFFER (RXD)
(IC7)
EEPROM
(IC9)
PHOTO COUPLER
(IC8)
DSC SIGNAL LINE SW
(IC3)
DATA LINE BUFFER (TXD)
(IC6)
BEEP/DSC ENCODE SIGNAL BUFFER
(IC2)