Ah-3 Block Diagram - Icom AH-3 Instructions Manual

RF IN
RL1
TUNE
FWD POWER
L1, D1-D4, IC14
PWR
+ 8 V
+ 13.8 V
IC19
VOLTAGE
REGULATORS
IC20
+ 5 V
NORMAL
SWR
ATTENUATOR DETECTOR
R6 - R14
L6, D12, D13, , IC 16, IC17
PHASE
DETECTOR
IC15, IC17, IC 18, Q11, Q12
PHASE
IMPEDANCE
DETECTOR
D8 - D11, Q9, Q11, IC15
|z|
BUFFER
IC13
GATE
IC8

AH-3 BLOCK DIAGRAM

RL2
L NETWORK
TUNE
C NETWORK
CP17
RELAY DRIVERS
IC10, IC11, IC12
LATCHES
IC4, IC5, IC6 Q5 Q6 Q7
DATA
CPU
IC1
ANTENNA
J6
J5
COMMAND
CPU
BUFFER
CONTROL
Q1
IC7, Q2
BUFFER
Q3, Q4
START
KEY