Front Unit - Icom IC-PW1 Service Manual

10-5 FRONT UNIT

Io SELET: 0 V Io SELET: 4.7 V
Io UNSELECT: 3.2 V Io UNSELECT: 0 V
R2 R3
R1
150 150
150
DS1 DS3
DS2
CL-200YG CL-200YG
CL-200YG
Q1
Q2 Q3
DTC114EE
DTC114EE DTC114EE
Vo METER ALC METER
R5 R6 R7
150 150 150
DS5 DS6 DS7
CL-200YG CL-200YG CL-200YG
Po METER TEMP METER SWR METER
Q5 Q6 Q7
DTC114EE DTC114EE DTC114EE
R9
R10
R11
150
150 150
3.5 MHz
3.5 MHz SELET: 0 V
DS9 10 MHz 18 MHz
3.5 MHz UNSELECT: 3.2 V
CL-170PG-CD-D
DS10 DS11
CL-170PG-CD-D CL-170PG-CD-D
3.5 MHz 10 MHz 18 MHz
Q9 Q10 Q11
DTC114EE DTC114EE DTC114EE
3.5 MHz SELET: 4.7 V
3.5 MHz UNSELECT: 0 V
R13 R14 R15
150 150 150
1.8 MHz 7 MHz 14 MHz
DS13
DS14 DS15
CL-170PG-CD-D CL-170PG-CD-D CL-170PG-CD-D
1.8 MHz 7 MHz 14 MHz
Q13 Q14 Q15
DTC114EE DTC114EE DTC114EE
R17
R18
150
150
DS17
DS18
CL-170PG-CD-D
CL-200YG
TX: 0 V
Q17
RX: 3.2 V Q18
DTC114EE
DTC114EE
50 MHz
R20 R21
150 150
AUTO
28 MHz
DS21
CL-170PG-CD-D
DS20
AUTO SELECT: 0 V
CL-170PG-CD-D
AUTO UNSELECT: 3.2 V
Q20 Q21
DTC114EE DTC114EE
AUTO SELECT: 4.7 V
28 MHz
AUTO UNSELECT: 0 V
R23 R24
150 150
ANT2 SELECT: 4.7 V
2 4
ANT2 UNSELECT: 0 V
DS23 DS24
CL-200YG CL-200YG
ANT2 SELECT: 0 V
ANT2 UNSELECT: 3.2 V
Q23 Q24
DTC114EE DTC114EE DTC114EE
R26 R27
150 150
1 3
DS26
DS27
CL-200YG
CL-200YG
ANT1
Q27
DTC114EE
Q26
DTC114EE
R4
TUNER ON: 0 V
470
TUNER OFF: 3.2 V
DS4
CL-200YG
Q4
DTC114EE
PROTECT ON 3.2 V
AMP ON 0 V
AMP OFF 3.2 V
STR
STR
R25
R8 PROTECT ON 0 V
120 150
AMP ON 3.2 V
TUNER ON: 4.7 V
AMP OFF 3.2 V
DS8 DATA
TUNER OFF: 0 V
SEC2462C
DATA
IC1
µPD4094BG
W1
Q25
CLK
1
Q8 STR
DTC114EE
CLK 2
D
DTC114EE
3
CLK
I1L 4
Q1
I2L 5
Q2
6
Q3
7
Q4
GND
8
VSS
PROTECT ON 0 V
AMP ON 4.7 V
R12
AMP OFF 0 V
STR
150
STR
PROTECT ON 4.7 V
AMP ON 0 V
24 MHz
IC2
AMP OFF 0 V CLK
DS12 µPD4094BG
CL-170PG-CD-D
CLK
24 MHz
1
STR
2
D
3
Q12 CLK
VML 4
Q1
DTC114EE
SML 5
Q2
AML 6
Q3
7
Q4
GND 8
VSS
R16
150
STR
21 MHz
STR
DS16
CL-170PG-CD-D
IC3
21 MHz
CLK
µPD4094BG
CLK
1
Q16 STR
2
D
DTC114EE
3
CLK
50ML 4
Q1
28ML 5
Q2
6
24ML
Q3
7
21ML
Q4
GND 8
VSS
R19
150
STR
TX: 4.7 V
DS19
STR
RX: 0 V
CL-200YG
Q19
IC4
CLK µPD4094BG
DTC114EE
CLK
INPUT2 SELECT: 4.7 V
1
STR
INPUT2 UNSELECT: 0 V
2
D
3
CLK
_
3 5ML
4
Q1
_
INPUT2 SELECT: 0 V
1 9ML 5
Q2
INPUT2 UNSELECT: 3.2 V
6
Q3
AUTOL
7
Q4
GND
R22 8 VSS
150
INPUT1 SELECT: 0 V
DS22
INPUT1 UNSELECT: 3.2 V
CL-200YG
STR2
CLK
Q22
INPUT1 SELECT: 4.7 V DATA2
DTC114EE
INPUT1 UNSELECT: 0 V
W3 GND
W4
C34
0.001
D10
1SS315
D11
1SS315
W6
ANT4
W5
R56
RV-150
10 k
C20
0.1
ANT3
C21
0.1
C2
0.1
C1
0.1
IC7
+5V
BU4021BF
16 +5V ANT 1 16
VDD H VDD
15 2 15
OE QF G
14 A1L DATK BDOWN
3 14
Q5 QH F
13 A2L
TUNER 4 13
Q6 D E
A3L
12 PA 5 12
Q7 C QG
11 A4L MET2 6 11
Q8 B SER
10 MET1 7 10 CLK
QS A CLK
9 GND 8 9 STR
QS VSS P/S
C3
0.1
16 +5V
VDD
OE 15
PML
14
Q5
13 IML
Q6
12 TML
Q7
11
Q8
QS 10
QS 9
MET1
C4
0.1
MET2
VDD 16 +5V
PA
OE 15
14 18ML
Q5
13 14ML
Q6
12 10ML
Q7
11
7ML
Q8
TUNER
QS 10
QS 9
BUP
C5
0.1
BDOWN
R29
220 k
16 +5V
VDD
15
OE
TRANS
14
Q5
I1/2
13 TUNL
Q6
C6
12 PAL
Q7
2.2
11 PROL
Q8
10 R38
QS
9 47 k
QS
ANT
C7 0.1
+5V
1 VCC 16
DO
2 VDD 15
LD
3 AO6 14
CLK
4 AO5 13
DI
5 AO4 12
AO1
6 AO3 11
AO2 IC6
7 NC 10 4.9 V 9.2 V
NC
TA7805F
8 VSS 9
GND
R30
33
+5V
IC5
O I
M62354GP
G
C9
C10 C11
C8
0.1
33 0.1 10
R57
RV-150
10 k
D1 D2 D6
1SS301
1SS301 1SS301
R39 R40 R41 R43 R60 R61
47 k 47 k 47 k 47 k 47 k 47 k
R44
1 k
CLK
I1/2
R45
1 k
BUP DATA
R46
1 k
DATK
R47
1 k
STR
R58
1 k
DATA2
R59
1 k
STR2
D3 D4 D7
R31
1SS300 1SS300 1SS300
47 k
S1
METER 1
R32
47 k S2
METER 2
R33
47 k S3
AMP/PROTECT
R62 C30 C29
1.5 0.047 0.047
R34
47 k S4
TUNER
C16 C17
0.0047 0.0047
R35
47 k
S5 S12
UP
R36
47 k S6
DOWN
R53 R52
47 k 47 k
R37
47 k S7
INPUT
IC8
TC7W74FU
S8
ANT
5
1
2 4
2
S9
3
C18
0.1
IC9
TC4S584F
R55
47 k
S12
SW BOARD
10 - 5
C25
0.001
C26
0.001
C27
0.001
C28
0.001
C31
0.001
C32
0.001
J1 P4 P3
100 µH
L1 CLK
1
1 1
100 µH
L2 DATA
2
2 2
100 µH
L3 DATK
3
3
100 µH 3
L4 STB
4
4
4 TO
L5 HF50ACC3225-B
H12
5
5 5
L6 HF50ACC3225-B MAIN UNIT
S12
6
100 µH 6 6
L7
DATA2 J3
7
7 7
100 µH
L8 STB2
8
8 8
GND
9
9 9
H12
R51
1 k
C24
0.1
R54 D5
MA8051
47 k 13.3 V
C19
10 Q32
8 6 12.5 V
2SB1132
R48
FRONT UNIT
1 k
5
CK Q
3
D Q
Q31
DTC144EE
7 4
DS2
LAMP
CP2 DS-2
R42
10
C33
10
R63 10.2 V
4.7 k
CP1 DS-1
DS1
LAMP
ME1
METER1 CP3
CP4
METER
ME2
METER
METER2
CP5
CP6