![background image](http://html2.mh-extra.com/html/icom/d-star-id-4100a/d-star-id-4100a_service-manual_3516963039.webp)
150k
R304
0.1
C513
100k
R438
330
R309
100k
R437
10k
R335
33k
R325
100k
R410
LDTC114YE
Q139
0.47
C517
150k
R191
10
C607
C503
0.001
RSSI
82P
C547
0
R440
R407
330k
0.0047
C546
0
R444
DMC506010R
Q112
1
2
3
4
5
6
R660
0
100k
R603
R5C1
0.1
C570
1
C543
MMZ1005Y102CT
EP1
18
1
C566
MICUD
R327
470k
1
C544
4.7k
R604
5VS
Q102
2SC4738
TC74VHC4066AFK
IC100
1
I/O1
2
O/I1
3
O/I2
4
I/O2
5
CONT2
6
CONT3
7
VSS
8
I/O3
9
O/I3
10
O/I4
11
I/O4
12
CONT4
13
CONT1
14
VDD
BTAF
1
C553
10
C602
0.1
C545
R423
1M
1.8k
R305
R376
15k
0.01
C658
100k
R328
LA4425A
IC106
1
2
3
4
5
10k
R477
R447
1M
100P
C857
SQL
J100
1
2
3
4
5
6
7
8
C643
0.0018
0.1
C554
CLONE
1
C541
2.2k
R348
470
R302
390P
C855
1k
R331
C627
0.001
10k
R459
2.2k
R321
LDTC144EE
Q151
AFMUTE
AMC
ALCO
100k
R605
R644
10k
1
C634
47k
R332
R301
1k
0
R153
100k
R427
MAIN_DASEL
C523
0.1
1
C505
NJM2783V
IC14
1
GAIN1
2
GAIN2
3
DET
4
OUT
5
BUFFIN
6
BUFFGAIN
7
BUFFOUT
8
GND
9
V+
10
VREF
11
SENSE
12
INT
13
GAINSW
14
IN
100k
R433
MIC1
R435
22k
100
R616
DA_STB2
MIC2
R645
39k
1
2
NJU7058V
IC112
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DA_DATA
DASEL
C614
0.1
0.01
C520
TC74VHC4066AFK
IC109
1
I/O1
2
O/I1
3
O/I2
4
I/O2
5
CONT2
6
CONT3
7
VSS
8
I/O3
9
O/I3
10
O/I4
11
I/O4
12
CONT4
13
CONT1
14
VDD
DA_CK
PLAY
DTCSIN
0.047
C862
J103
1
2
3
4
10
C519
REFC
47k
R446
22k
R607
3VS
0.068
C860
R632
39k
BTMIC
C521
0.033
2.2k
R613
D101
DZ2J047M
C540
0.068
68k
R608
SP1
0.001
C613
R319
120k
0.0056
C861
0.01
C616
MMZ1005Y102CT
EP105
4.7k
R428
R628
100k
C603
0.1
0.1
C598
VCC
3VS
R627
3.9k
15k
R774
0
R439
DDET
0.0039
C856
0.033
C866
100k
R382
100k
R416
MMZ1005Y102CT
EP101
470
R772
0.1
C590
0.001
C534
0.001
C623
DTCS
0.1
C538
R431
3.9k
DAF
R343
220k
R463
22k
33k
R458
0.001
C619
1
C672
R344
15k
R409
100k
10k
R456
1
C525
R383
22k
DTMF
R2A20178
IC102
1
VIN2
2
VDD
3
LD
4
CLK
5
DI
6
VIN3
7
VOUT3
8
VOUT4
9
VIN4
10
VIN5
11
VOUT5
12
VOUT6
13
VIN6
14
VDAREF1
15
VDAREF2
16
RESET
17
GND
18
VIN7
19
VOUT7
20
VOUT8
21
VIN8
22
VIN1
23
VOUT1
24
VOUT2
25
0.0018
C667
C556
0.1
560P
C650
R405
4.7k
1M
R326
C558
220
D100
L1SS400
VOX
L1SS400
D123
0.22
C572
1
C617
NJM2746V
IC101
1
2
3
4
5
6
7
8
DTMUTE
0.022
C609
120
R684
R312
22k
10
C883
NJU7057RB1
IC103
1
2
3
4
5
6
7
8
100k
R380
MIC_PTT
R317
330k
47P
C529
47k
R453
R306
4.7k
Q149
LDTC144EE
MICMUTE
150k
R455
R307
1k
WN_SEL1
VOL_CK
390P
C528
DTCS_SEL
C516
0.001
C506
0.001
8V
27k
R454
MPZ1608S221A
EP1
15
MMZ1005Y102CT
EP102
BTMICSW
0.033
C647
0.1
C533
0.0039
C579
C585
0.47
R324
100k
0.001
C530
MMZ1005Y102CT
EP107
R322
2.2k
15k
R615
0.001
C830
RMUTE
100
R414
0.0022
C831
WXALT
MICSEL
10k
R443
0.0033
C610
C637
0.0039
C51
1
0.001
C674
0.01
0
R359
NJU7056F3
IC107
1
2
3
4
5
0.47
C542
MMZ1005Y102CT
EP106
470
C557
C615
0.0033
NJU72341V
IC1
10
1
NC
2
NC
3
IN1
4
IN2
5
MUTE
6
SDA
7
SCL
8
V+
9
VREF
10
GND
11
OUT2
12
OUT1
13
NC
14
NC
10k
R396
47k
R403
R465
12k
R449
470
0.01
C605
MMZ1005Y102CT
EP113
R445
4.7k
R358
4.7
MPZ1608S221A
EP111
0.1
C601
100k
R461
100k
R413
0.018
C526
1
C537
0.001
C507
100k
R426
56k
R190
R303
100k
LDTC144EE
Q100
0.001
C514
R308
1k
Q106
RUM002N02
C664
0.015
R377
1M
R389
10k
1
C536
R313
10k
39k
R681
J102
RECO
R457
39k
TC74VHC4066AFK
IC104
1
I/O1
2
O/I1
3
O/I2
4
I/O2
5
CONT2
6
CONT3
7
VSS
8
I/O3
9
O/I3
10
O/I4
11
I/O4
12
CONT4
13
CONT1
14
VDD
DMOD
100k
R385
LDTC144EE
Q154
10
C510
150k
R609
MMZ1005Y102CT
EP103
150k
R614
C508
0.001
C509
0.001
39k
R610
VOL_DATA
100P
C591
0.1
C593
100k
R452
R429
47k
100k
R451
1
C531
C660
0.001
L1SS400
D124
10
C535
MMZ1005Y102CT
EP100
C560
0.1
15k
R680
R320
12k
100k
R419
1
C876
98_DATA
0.1
C552
1
C877
R31
1
10k
47k
R333
0.1
C504
120k
R334
R411
10k
27k
R412
220k
R417
100k
R418
R330
0
LDTC1
14EE
Q152
MIC_PTT
MICSEL
MICUD
R5C1
DTCSIN
MICUD
MICSEL
MIC_PTT
98_DATA
AFMUTE
DTCS_SEL
DTCS
DTMF
CLONE
VOL_CK
VOL_DATA
SQL
RSSI
WXALT
BTAF
BT
AF
RMUTE
VOX
WN_SEL1
AMC
DTMUTE
AFMUTE
VCOMOD
SQLIN
DET
REFC
MICMUTE
DTCS
DTCS
_
SEL
MICMUTE
DA_DATA
DA_CK
DA_STB2
DA_STB2
DA_DATA
DA_CK
REFC
VOL_DA
T
A
VOL_CK
98_DATA
DTMUTE
AMC
VCOMO2
CLONE
VOX
PLA
Y
MAIN_DASEL
3VS
DAF
DASEL
RMUTE
DAF
MIC2
MIC1
MAIN_DASEL
PLAY
MIC1
MIC2
DASEL
3VS
3VS
REFMOD
DTMF
VCOMO2
GND
MICU/D
MIC
MICIN
EXTMIC
PTT
8V
MICE
CTCSS,DTCS
AMC
DTMF
ALC:ID-31
3ch : unused
4ch : unused
2ch : FM,AF
1ch : DVFO
DV BUFF
5VS
3VS
3.3 V
3.3 V
13.7 V
5.0 V
2 : 0.4 V
6 : 7.9 V
5 : 4.6 V
1 : 4.2 V
4 : 4.3 V
3 : 1.1 V
10-4
• MAIN UNIT (3/8)
*
Refer to the PARTS LIST for the value and name of component.