Section 9 Block Diagram - Icom IC-PW1 Service Manual Addendum

SECTION 9 BLOCK DIAGRAM
9-1 IC-PW1
SPLITR UNIT
1
INPUT1
2
FREQ DET
1
INPUT2
2
SPLITTER
D4, D5:
RG3D
LIMITER
THERMO
DET
D3:
IC1: TA7808 HSM88
T13
BIAS DRIVE DET
IC21:
NJM4558 IC21:
NJM4558
FOR/DRIVE
PROTECT
DRIVE AMP
IC1: NJM3403
IC34: TC4S584F
CPU DRIVE
DET
ALC
TRANSMIT AUTO
Po Vd SWR
AMP/PROTECT
1.8 – 50
BAND ANT1-4
FILTER UNIT
D15, D16: MBD701
VSWR DET
PA UNIT
Q1: MRF150
LPF
PA1
FOR
HV
Q1: MRF150
PA2
COMBINER
HV
Q1: MRF150
PA3
D1–D3:
1S953X3
UNBALANCE
HV
DET
Q1: MRF150
ATT
PA4
HV
COMBINR
UNIT
PA FAN
Q5:
2SB1119 IC3: NJM4558
FAN DRIVER COMPARATOR
Q34: 2SC2714
IC19:
Q35: 2SK302
TD62783
RF AMP
MAIN UNIT RELAY
DRIVER
IC30: TC7S14
LIMIT AMP
IC20: TC74AC393
DEVIDER
TUNER Id
TEMP
METER1
H12
(+12V)
LED
METER
LAMP
1-2
METER2
INPUT1-2
LED
FRONT UNIT
9 - 1
DET BOARD
COUPLER COUPLER
D3,D4,
D5,D6: MA77
–13V
IC2: MC10125L
IC5:
D11, D12: IC4: TA74AC112
TA79L05
MD701 D13, D14: 1SS286
REF
–5V REG
TUNER FAN
IMPEDANCE
PHASE DET
DET
–5V
IC9: IC9: IC15:
NJM4558 NJM4558 TD62083
MOTOR
AMP AMP
DRIVER
IC7: X24C04S8
EE-PROM
IC14: TD62783
IC25: S-8045
IC12: M38022M2-138FP
RELAY
TUNER CPU DRIVER
RESET CTRL
Q7: 2SB1119
IC31: NJM4558M
REFT
SWR AMP
TRC
FORT
IC16:
IC2: NJM4558
IC2: NJM4558 µPD4069
FOR AMP
REF AMP
IC28: TC4W66F
IC3: NJM4558
IC1: NJM3403
SWR/DRIVE
ALC METER
CTRL
RL2: AHY103
IC4:
NJM4558
IC1: NJM3403
RF POWER
ALC AMP
CTRL
MAIN CPU
IC26: TMP90PM38F
5V
OUTPUT
DATA
EXPANDER
IC1, IC2
IC3, IC4: µPD4094
IC5: M62354
D/A
CHASSIS UNIT
CAP SW
CAP SW
RELAY
RELAY
C-NET BOARD
MOTOR1 MOTOR2
L-NET BOARD H-NET BOARD
COIL SW
COIL SW
RELAY RELAY
Q9, Q10, Q11
Q12, Q13: 2SB1119
Q13, Q14: 2SB1119
RELAY
RELAY
DRIVER
DRIVER
FAN
DRIVER
Q3: 2SB1119
T13V REG
IC8:
BA9700
SEND
BUFF
T13 –13V REG
SEND1
SEND
SELECT
SEND2
ALC1
ALC
SELECT
ALC2
IC1: NJM3403
Id CTRL
H12 (+12V)
IC17: X24C01AS
S12
EE-PROM
RELAY CTRL
IC8: TC7W74
+5V REG
IC9: TC4S584
IC6: TA7805
CI-V
POWER
5V
IC7: BU4021
SHIFT
REGISTER
SW BOARD
ANT1
1
2
ANT2
1
2
ANT3
1
2
ANT4
1
2
ANT-SW
UNIT
IC18:
TD62783
RELAY
DRIVER
IC5:
TA7805
12 V
+5V REG 5 V
–13 V
100/200 V
REGURATOR
(PX-1981)
HV
(+12V)
ANT
UP
DOWN
TUNER
AMP/
PROTECT
INPUT 1/2
METER 1
METER 2