Icom IC-F4101D Service Manual page 35

• MAIN-A/C UNIT (2/3)
EP52
EP53
MMZ1005A152ET MMZ1005A152ET
VCC
C459
NFM18PC104R1C3
CP6
CP7
CP8
CP9
CP10
CP12
CP11
TX 3.32V
RX 0V
DS51
+3.3V
LNJ115W8PRA R469
Q82 T5V
270
YG LDTA144EE
RLED
Q67
LDTC114YE
R468 Q83
ADS
R 680 LDTA144EE L:Dig/H:Ana
TLED IC66
TC7W53FK
S54
DMI 1 8
TX 0V COM VCC
FSR080453W-01+16C
2 7
INH CH0
2 1 RX 3.32V 3 6
C1 A1 VEE CH1
3 CBI0 4 5
B1 GND A
5 4
CBI3
C2 A2
6
CBI2
B2
8 7
CBI1
C3 A3
9
B3
6dB/oct
R500
+5V
39K
Q51
KTA2015
7
Q52
IC60
LDTC114YE
LIMITTER
NJM13403V
D52
MA2S7280G
+3.3V
R358
IC62
390
TC7W66FK
J51
8
MCG0 7
6
EP51
5
MMZ1005Y102CT
MC51
R366
EM9745P-33-G C340
R359 C341 150K R368
0.1
8.2K 1 270K
R612
100K
+5V
R363
R360
2.2K 470
+5V
C343
10
R367
27K
XPTT
Q58
C381
DRA9123Y0
0.1
ATX
Q59
LDTC114YE
IPTT
SIDE1
2.23V
SIDE2
CL
IC55
TPA0211DGN
BTL AMP
8
VO-
7
GND
6
SE/BTL
5
VO+
C393
220
J52
R417
1.2K
J53
1
2
C399
0.1
R418
390
CP5
1 2
F51
ERBSE3R00U
Q92
TPC6103
6 1
5 2
4 3
R626
100K
R625
270K
L51
VLCF4028T-4R7N1R5-2
3.3V DC-DC CPUV CPUV
Q71
KTA2015
C465
Q90
NFM18PC104R1C3 S5V
2SA1577
+3.3V
GND SW
11 5
Q86
ADJ SW
12 IC65 4
3.28V LDTC114YE
ITH SW
BD9141MUV R432
13 3 3.32V
VREG SW
4.7K
14 2 S5C
NC SW
15 1
TX
RX 4.82V
Q91
LDTC114YE R5V
PWON
Q72
2SA1586
C486 Q87
R434
0.1 LDTC114YE
R494 IC63
10K
NJM2783V
47K
RXC
1 14
GAIN1 IN TX 4.89V
C484 2 13 R498
GAIN2 GAINSW
1 18K RX
3 12
DET INT
4 11
OUT SENSE
5 10 T5V
BUFFIN VREF
300Hz HPF 6 9 T5V
BUFFGAIN V+ Q73
Ana 7 8
BUFFOUT GND KTA2015
Dig C488 C427
C491
1 0.1
ALC(Digital Only) R436
0.01
4.7K
TXC
C482
Q88
0.068
LDTC114YE
Q66
2SK3019
R493
C483
ADS
10K
1
+3.3V
C492
R491
R503
100P
22K
4 100
V+
CPUV
R495 GND
C494
47K
11
0.01
6
R499 IC60
6.8K
A
5 R497 VREF CL
22K
R371
R504
100K
100K
1
2
C380
3
68P
4 +5V
R370
470K
R369 R611
150K 0
2
TXC
1 RXC
A
3 VREF VREF RXD0
IC64 TXD0
NJM12904V
MIC AMP
DMOSI
D53 DSCK
1.43V
R439
C384 L1SS400
SCK0
VOX AMP
1 150K
VOXV NOIS
R429
R428
C382 C383
IC64
560K
1 1K
0.1
6 PWON
7 POSWH
B
5
AFON
ADS
R422
NWC
100K
DPDN
Q84 Q85
AFON DRES
LDTC144EE LDTC114YE
R441
DAST
AFON 5.27V
10K
+5V SCK
C403
OFF 0V
SSO
0.22
AFVO
1
R412
IN
10K
2 AFON
SHUTDOWN
3 R413
VDD
4 100K DSIRQ
BYPASS
DMISO
DSS
Q63
2SB1132
VCC BEEP
R416
1K R414
UNLK
330K
PLST
D55
PLSW
L1SS400
3 4 BATV S5C
R442
2 5
330
1 6 ATX
Q64
TMUT
DMC506010R
HV MCG0
MCG1
VCC
IPTT
Q93
XPTT
LDTC114YE
SIDE1
PWON SIDE2
POSWH
R421
F081165S-5 R623
D59
CBI1
5.6K
LDAN222
+5V CBI3
CBI2
AFVI CBI0
5.00V
IC54
NJM2871BF05
0V
1 5
CTRL VIN
2
GND
3 4
NB VOUT
5V REG
C312
180P
0V
R454
120K
IC64
8
R453
V+
47K
GND
4
IC58 5
3
TA75S01F
4
1
2
D51
Q81
LRB706F
LDTC144TE
R693
15K
R694
15.0K
CLO
CLI
R683
1K
MDET
R661
C5
EXB28V102J
7P
R638
100K
A5
D7
C7
R662 LVIN LVIN
EXB28V102J CP21 MDWN
A7
R7
B8
B12 CP13
R4
R4 PLST
R647 R3
S5C
1K
A15
R652
1K
P15 DSS P15
P14
B15 P13
C14 AFVI AFVI P12
P11
C15 RSSI RSSI
P10
D13 TEMP TEMP
R663 P9
EXB28V102J
P8
R653
D14 P7
1K
R664 CP14 P6
EXB28V471J CP15 P5
M14 P4 PLSW P4
P3
R627
P2
100K
P1
N15
N14
R665 N14 DMISO
EXB28V102J N13
M15 BATV BATV N12
N14 VOXV VOXV N11
P15 MSEL N10
N9
CP132 N8
N7
CP16
R688
N6
M8 CP17
2.2K
R666 N5
CP18
EXB28V102J N4
N4
R640
N4 UNLK N3
100K
N2
P4
R3
R639
R667
100K
EXB28V102J
M2
M1
L1
R668
R641
EXB28V102J
100K
J1
J2
H1
H2
R669
EXB28V102J
D3
C2
C1
8P
R394
82K
BAL
R398
150K
R619
VREF RSTN 27K
13 6
VIN2 VIN1
IC57
SQIN 14 5
VOUT2 VOUT1
AK2330 C324
T1 15 4
VOUT3 VOUT0
820P
+5V 16 3
VIN3 VIN0
17 2 9
VIN4 VIN7
18 1 8
C
10
IC60
R614
120K
T2
REF
LVA
R517
R451 C311
IC60 1.8K
2
33K 1
1
B
3
C15
NWC
D2
CBI3
D3 CBI1
D4
D6 DSCK
D7 RXD0
D8 ESCL
D9
D10
D13 DPDN
D14 DRES
D15 CSFT
E1
E2
E3
E4
E12
E13
IC51
E14
HD64F2506RBR26DV(EMPTY)
E15
F1
F2
F3
F4
F12
F13
F14
F15
G1
G2
G3
G4
G12
G13
G14
G15
H1
SIDE1
H2
SIDE2
H3
H4
R691
100K
R651
1K
*: Refer to the PARTS LIST for the value and name of component.
10 - 2
HV
HV
+5V
R396 +5V
180K
+3.3V
R397 +3.3V
150K
S5V
S5V
13 R5V
R5V
14 VCON
D
12 T5V
T5V
IC60
RXC
RXC
SSO
R615 SSO
22K
DAFO SCK
SCK
C322
R616
1 PLST
PLST
150K
BEEP
C323 PLSW
PLSW
0.1
NWC
R618 NWC
10K
VREF ADS
ADS
TMUT
TMUT
MOD
MOD
R518 R630
VCON
100K 0 VCON
DMO
SQIN
SQIN
LVA
LVA
R527
100K
VREF T1
T1
T2
T2
S5C
S5C
TLED DIF
DIF
RLED
RES LVIN
LVIN
MD2
H12 NMI RSSI
RSSI
R692
1K
DISC
DISC
BATV
VOXV DET
DET
RSSI
NOIS
NOIS
UNLK
UNLK
TEMP
AFVI
LVIN
C15 CPUV
CPUV
D2 +3.3V
+3.3V
+5V
+5V
D6
D7
D8 DMOSI
DMOSI
DSCK
DSCK
DSS
DSS
D13
R633 D60
DMISO
4.7K 1SS390 DMISO
DSIRQ
DSIRQ
DMI
DMI
RES
DMO
DMO
DAFO
R632 DAFO
10K
DIF
DIF
DPDN
DPDN
DRES
DRES
19.66MHz
VREF
VREF
1.73Vp-p
X51
R243 CR-912
C455
10
15P
H1
H2
R244
1M
IC53
NJU7704F3-28A
5 1
VDD CD
2
VSS
RES 4 3
VOUT MR
MD2
IC52
R1EX24512ASAS0A
8 1
VCC A0
R657
7 2
WP A1
1K
6 3
ESCL
SCL NC
5 4
ESDA
SDA VSS