Icom IC-UR8050 Service Manual page 23

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• TX, PA AND REG UNIT
8.18 V
R6
C17
C20
R5
C24
L1
100
10 µH
10 p
1 p
33
47
C13
C21
C7
470 p
D2
470 p
0.022
L3
C23
1SV270
MC152
470 p
R7
R4
100 k
820
C18
R2
27 p
D3
22
R3
1SV270
C19
33 k
2.5 p
C22
R84
0.3 p
180
L2
C11
C15
10 µH
Q2
Q3
470 p
R46
9 p
1 k
2SC5186
2SC4228
R49
1.8 k
R47
R48
C53
TN20-3U473L
2.2 k
0.001
CP1
C10
470 p
Q10
R32
D6
2SA1587
330
MA8056M
IC3
C8
MB15A02PFV-1
R28
C9
0.001
4.7 k
9
47
CK
10
DATA
11
R31
R29
LE
R27
12
10
33 k
FC
2.7 k
13
FR
14
R33
FP
15
C6
R30
47 k
0P
16
0.047
3.9 k
0R
R25
15 k
C5
Q11
R26
1
2.70 V
4.7 k
2SC4117
R68
Q12
IC6
47 k
2SA1586
TA75S01F
C78
R34
R71
R69
0.01
100 k
100 k
47 k
5
1
4
C76
3
470 p
2
Q1
2.70 V
2SC4116
D1
R1
C4
C3
1SS355
5.6 k
0.001
10
C2
C1
0.001
10
IC1 NJM7809FA
P4
J4
1
W12
1
1
O
2
RX UNIT
2
G
W13
3
C2
J2
3
0.1
2
P3
J3
W10
1
TX UNIT J2
1
2
2
W11
3
9.1 V
3
P2
J2
W5
1
1
W6
2
2
W7
3
3
LOGIC
W8
4
4
UNIT
R1
W9
R2
5
J11
5
33
W18
33
6
6
C4
0.001
REG BOARD
C30
C31
C35
C28
470 p
0.001
0.001
0.001
R9
820
R17
R13
82
180
L4
47 nH
C27
C33
C32
0.001
0.001
L6
470 p
R18
18 nH
L7
R14
18 k
15 nH
22 k
C25
R10
R12
C26
C29
R79
C81
C34
3 p
15
68
12 p
12 p
22
470 p
10 p
Q4
Q5
R11
2SC4226
15
2SC3356
L5
IC5B
33 nH
NJM4558M
C54
R56
C79
C74
10
5
3.3 k
0.01
4 p
7
6
C56
120 p
R50
R51
MOD
10 k
39 k
R72
150 k
R45
C55
R52
R53
56
0.01
C72
39 k
39 k
0.001
R73
C57
C59
150 k
D5
0.0022
33
8
1SS355
FIN
7
LD
6
GND
5
DO
4
R43
VCC
3
R-MOD
10 k
VP
X1 CR- 608
OSO 2
OSI 1
3
2
Q14
OUT
GND
2SK880
C50
C49
R44
R70
0.001
10 p
10 k
C48
33 k
4
1
VCC
VCON
0.1
R86
R87
2.2 k
2.2 k
3.00 V
L10
10 µH
R40
C52
R41
33 k
470 p
100 k
C43
C47
R36
0.001
0.1
5.00 V
22 k
1.53 V
R35
1
C51
5
47 k
4
0.001
IC1
IC2
3
AN78L05M
AN8003M
2
IC4
O
O
TA75S01F
G
G
R37
R38
C41
C46
R39
22 k
22 k
10
0.01
22 k
C42
C44
C45
10
470 p
10
F-SET
P1
W2
F2
F1
3
W1
4
1
W3
F3
C1
W4
DC13.8V input
0.33
D1
5
2
DSA3A1
6
3
P5
W14
1
2
PA UNIT
3
W15
4
FRONT
P6
W1
(POWER SWITCH)
W16
1
1
2
2
S1
3
3
1/1
1/2
W17
4
4
2/1
2/2
10.6 V
J1
CHASSIS
MF1
1
1
2
2
3
3
C3
470
GROUNDING
TERMINAL
6 - 2
C38
C39
RX: 0.00 V
0.001
100
TX: 8.00 V
R85
R23
R24
10
39
39
R20
10 k
C36
R21
L8
0.001
10
R19
82 nH
1.2 k
R82
15
L9
C77
R80
R81
C37
12 nH
5 p
270
270
5 p
R22
680
RX: 0.00 V
Q6
MRF9745
TX: 9.00 V
C62
47
Q8
2SB1132
APCV
R57
Q9
C58
C75
10
22
470 p
DTC114EU
C61
R83
0.001
15 k
R59
R60
10 k
1 k
C80
IC5A
470 p
C84
NJM4558M
MOD
10
3
8
1
2
R78
R58
R77
22 k (#03)
4
15 k
1 k
47 k (#04)
R75
3.3 k
C83
2.2
TX UNIT
Q13
2SJ144
R76
R74
1.8 k
100 k
CK
DATA
T LE
R88
R89
UNLOCK
100 k
56 k
TX. C
R90
T8
56 k
MOD
C64
C65
C66
C67
C68
C69
C70
47 p
47 p
47 p
470 p
470 p
470 p
470 p
+9V
9.13 V
C63
0.1
TX UNIT J4
W1
W4
W4
1
REG BOARD
2
3
W5
4
P1
J1
W7
TX UNIT J3
1
1
W2
+9V
2
2
W3
E
3
3
J4
1
2
J3
1
T8
2
E
3
J5
P1
1
1
2
2
3
J1
1
2
3
LOGIC
4
UNIT
5
J3
6
7
E
8
J2
1
E
2
3
IC1
6
7
M68703LA
1
2
3
4
5
L4
C9
L6
L3
LA-252
4 p
LA-223
LA-252
C17
C16
C6
7 p
7 p
C7
C10
3 p
1 p
1 p
C14
C15
C13
D2
470 p
10
470 p
MA742
C8
6 p
TX: 13.8 V
L5
R2
BLM21P300S
22 k
C23
0.001
Q2
C28
C27
C12
0.1
470
2SB1019
10
L7
LA-239
C35
470 p
C21
R7
0.001
IC3
270
RX: 0.0 V
TA75S01F
Q1
TX: 6.0 V
2SC4081
R10
5
10 k
4
C26
0.001
R9
2
C25
33 k
R8
C9
C18
C24
0.001
47 k
10
470 p
10
PA UNIT
R11
820 k
RX: 0.0 V
C32
TX: 9.0 V
470 p
L2
C1
L1
LA-252
6 p
LA-252
W6
1
TX ANT
2
C5
C3
C2
9 p
1 p
5 p
D1
MA742
C4
6 p
R1
R22
22 k
NTCCF20123BH102KCT
R20
R15
C34
C11
10 k
22 k
0.001
470 p
R21
27 k
R16
4.7 k
RX: 0.0 V
TX: 2.8 V
R17
2.2 k
1
C22
3
R23
0.001
820
R13
R14
2.7 k
22 k
C33
0.001
R12
100

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