Icom D-STAR ID-4100A, Service Manual, Page: 37 / 46

L502
C2012C
0.001
C925
C1
16
100P
5VS
270
R21
82k
R51
18.3N
L111
2.2k
R20
2.2k R1
13
100 R648
0.001
C25
C101
0.001
0.001 C169
0.001 C1
5P
C140
150 R593
270 R45
39N L15
1SV305
D57
180
R592
8V
0.001
C31
0
R57
3SK293
Q510
0
R268
FANHV
C924 0.001
100
R31
VR5C1
BAR88
D18
47N
L500
R29
100k
100 R49
12N
L1
1
10P
C103
4P
C196
C941
0.001
220P C205
C105 0.001
56k
R675
1SV305
D1
1
0.001
C62
C157
0.001
39k R55
LQW18AN82NG00D
L9
C92 0.1
15N L1
13
0.001
C68
100k
R192
R43
100k
0.001
C928
0.001 C895
10k R595
Q21
2SC4738
22P
C162
0.001
C931
100k
R73
6P C66
LDTA114YE
Q14
0.001
C75
1SV305
D15
UR8
R154
100k
C93
0.001
0.001 C187
LDTA114YE
Q10
15P
C27
0.27U
L510
8P
C929
VR8
0
R647
100k R15
6P
C94
DA_STB
0.001
C943
1SV308
D56
10
R35
0.1
C122
R67 100k
10
R672
0.001
C164
D1
LRB751S
0.001
C897
1SV305
D86
D21
1SV305
47N L33
R649
680
0
R41
220
R677
0.001
C8
5P
C191
100k R596
15P
C46
2P
C138
100k R598
0.1 C108
0.001
C168
68k R61
C184 0.001
10P
C135
100k
R83
0.001 C894
0.001 C255
C90
0.001
47P
C190
18P
C189
18P
C948
100k R27
1SV305
D85
18N L1
14
LQW18AN82NG00D
L23
33P
C70
100k R13
1SV305
D23
220
R199
0.001 C926
LDTC144EE
Q1
10P
C163
22N L1
16
12.0N
L27
100P
C57
220
R166
7P
C942
L1
17
22N
0
R205
R56
2.2k
Q19
3SK293
MMZ1005Y102CT
EP6
0
R198
8P
C141
10 R594
0.1
C50
R59 100k
Q22
BFR193F
UR5C1
0.001
C182
2.2k R85
47k
R676
Q23
BFR193F
220 R84
0.001
C48
82k
R597
150 R39
1.5P
C139
C2012C
L511
260_R5C1
2P C137
D25
1SV305
C132 100P
1.5P
C97
0.1
C37
0.001 C886
0.1U
L17
6.8k R52
L118
47N
LRB751S
D14
0.001
C12
220P
C947
0.75P
C125
100k
R69
68k R47
220P C249
100k
R65
0.5P
C69
22k
R673
AGC
8V
33P
C126
0.001
C71
0.001 C16
8P
C63
0.001 C142
D29
1SV305
1SV305
D45
C2012C
L512
39k R81
260_R8
56k R98
120k
R182
47N
L32
82k R33
0.001
C945
R86
10
10
R53
0.001 C194
100P C77
2.2k R12
LDTC144EE
Q33
BAR88
D10 C1
13
0.001
0.001
C65
27P
C5
100k
R87
RF
C2012C
L1
10
0.18U
L115
1SV305
D89
1SV305 D51
LDTC144EE
Q5
56k
R674
0.001
C83
39k
R37
220 R82
2.2k R99
10N
L3
BAR88
D36
9.1N
L1
12
HV
D32
1SV308
0.001 C923
D2
LRB751S
10.3N
L22
1SV305
D90
0.001
C84
1SV305
D27
0
R599
DA_DATA
2.2k R72
0.001
C88
C149 0.1
DA_CK
0.001
C944
Q17
3SK293
1SV305
D19
2.2k
R89
R75
47k
LRB751S
D178
0.001
C898
3SK293
Q500
100k R23
LDTA114YE
Q9
0.001
C217
1SV305
D58
R2A20169SA
IC1
1
VrefL
2
Ao3
3
Ao4
4
Ao5
5
Ao6
6
Ao7
7
Ao8
8
Ao9
9
Ao10
10
VrefU
11
Vcc
12
Ao11
13
Ao12
14
Do
15
LD
16
CLK
17
DI
18
Ao1
19
Ao2
20
GND
C433
0.001
L501
C2012C
2P
C921
330
R590
0.18U
L99
0.18U
L100
VR8
UR8
BPF3 BPF2
VR8
UR8
AGC
BPF4 BPF1
BPF3 BPF1 BPF4 BPF2
BPF2
BPF1
BPF3
ATTC
PCON_V
PCON_U
TX_MUTE
FANC
BPF1 BPF2 BPF3
VR8
UR8
260_R8
BPF1
AGC
AGC
AGC
BPF4
U-R (375~550 MHz)
HV
FANHV
8V
ATT OFF : 0 V
ATT MAX : 4.0 V
VHF
UHFLPF
RX220 (230~375 MHz)
V-R (118-174 MHz)
VHFLPF
RX : 4.7 V
TX : 0 V
RX : 7.8 V
RX : 1.1 V
RX : 4.6 V
RX : 2.5 V
RX : 1.7 V
RX : 5.2 V
RX : 5.7 V
RX : 3.1 V
8.1 V
TX : 0 V
RX : 8.0 V
RX : 0.5 V
RX : 1.2 V
RX : 8.0 V
RX : 7.9 V
RX : 1.2 V
RX : 1.9 V
5.0 V
RX : 7.9 V
TX : 0 V
RX : 4.7 V
RX : 1.2 V
RX : 4.7 V
RX : 2.5 V
RX : 5.0 V
RX : 1.9 V
RX : 3.2 V
10-2
• MAIN UNIT (1/8)
* Refer to the PARTS LIST for the value and name of component.