Icom IC-F4210D Service Manual page 36

• MAIN-A/-B UNIT (2/3)
J54
15 16
CP05S
P6
CP05S
P7
CP05S
P8
CP05S
P9
CP05S
P10
CP05S
P12
CP05S
P11
TX 3.32V
RX 0V
SML-522MU8WT86 +3.3V
DS51
G
R469 Q82
RLED
270
LDTA144EE
R
R468 Q83
TLED
680
LDTA144EE
TX 0V
S54
2 1
RX 3.32V
C1 A1
3 CBI0
B1
5 4 CBI3
C2 A2
6 CBI2
B2
8 7 CBI1
C3 A3
9
B3
FSR08
+5V
KTA2015
Q51
Q52
LDTC114YE
D52
DB2S31400 R358
J51
0
1
MMZ1005Y102CT
C341
MICI
MC51
R359 C340 R357
22k
0 0.1
EM9745P
R363
+5V
470
R367
XPTT
27k
Q58
DRA9123Y0
Q59 LDTC114YE
ATX
IPTT
SIDE1
SIDE2
CL
BTL AMP
IC55 TPA0211DGN
8
VO-
7
GND SHUTDOWN
6
SE/BTL
C393
5
J52
VO+ BYPASS
220
1.2k
R417
J53
C399
1
2 0.1
R418
390
TPC6103
Q92
6 1
5 2
4 3
F51
CP5 LXES15AAA1 R625 R626
1 2
CP06S 270k
ERBRE3R00V
SQIN
MICI
MICO
Limiter
6dB/Oct
R491
10k
R495
10k
R499
8.2k
C485
1
CL
TXC
RXC
RXD0
TXD0
DMOSI
DSCK
SCK0
NOIS
PWON
POSWH
LDTC144EE LDTC114YE
Q84 Q85
AFON AFON
ADS
NWC
DPDN
R441
AFON 5.27V +5V
DRES
OFF 0V C403 R412 10k
AFVO
1
IN 0.22 10k R413
2 AFON SSO
3
SCK
VDD
100k
4
DAST
DSIRQ
DSS
2SB1132
Q63 VCC
DMISO
1k
R416
BEEP
R414 330k
R442
D55 C517
BATV
330 L1SS400 47P
UNLK
PLST
PLSW
S5C
HV
VCC
ATX
TMUT
Q93
PWON
POSWH IPTT
D59 XPTT
SIDE1
F081-0025A
LDTC114YE
SIDE2
R623
+5V
100k 5.6k
LDAN222
AFVI CBI1
CBI3
CBI2
R421
CBI0
39P 1.63V
Rx C247
Amp1 270k
1
R185 100k R186
C246
LDTC114YE
R908
0 R904
12k 12k
R123
1.63V
R983
R439 D53 C384
0
150k L1SS400 1
VOX
C381 C382 C383
0.1 0.1 1
C483
R49 390k 1
C484 2.2
R975
180P
10k C928
C492
22k R974 1
C494
0.015
300Hz
LPF
R985
100k
MMZ1005S601CT
MMZ1005F560C EP911
Q81
LDTC144TE
R702 10k
R705 100k EP54
15k
R693
R703 100k
R694
15.0k
CLO CPUV
CLI
R683 1k
MDET
R661 1k
C5
A5
D7
C7
R662 1k
LVIN
A7 MDWN
D6 R638
B8 100k
B12 CP06S
CP13
R647 1k A15 R4 PLST
R652 1k C13 R3 S5C
R2
R663 1k
B15 P15 DSS
C14
C15
D13 AFVI AFVI
1k RSSI RSSI
R653 D14 TEMP TEMP
R664 470
L14
L15 CP06SCP14
M14 CP06SCP15
P4 PLSW
P3
R665 1k R627
M15
100k
P15
N14 DMISO
N14
BATV BATV
R688 220k M8 VOXV VOXV
R34 5.6k MSEL
100k
R639
CP132 CP06S
CP06S CP16
R666 1k
CP06S CP17
N4 CP06S CP18
R4 N4
P4 UNLK
R3
R667 1k
M2
M1
R668 1k
J1
J2
H1
H2
R642 100k DAST
R669
R641 100k DSIRQ
1k
D3
D2
C1
C2
5.00V
C312 Q71 KTA2015
S5V
180P
R454
120k R432
LDTC114YE
S5C
R453
Rx Q86
4.7k
Q901 Amp2
TX 0V
47k
R451
C311 5
RX 4.82V
3
Q72 2SA1586
4 R5V
1 18k
1
IC58
2
NJM2107F
R434
LDTC114YE
RXC
C139
Q87
R959 10k
1
0
Q73 KTA2015
T5V
Tx TX 4.89V
1.63V
LPF
RX 0V
1.8k
R436
R517 R518
LDTC114YE
TXC
Q88
100k NFM18PC104R1C3 4.7k
MMZ1005A152ET MMZ1005A152ET
R614 C459 EP53 EP52
VCC
120k MOD 3.3V
DC-DC
VCON
EP56 MMZ1005F560C +5V
T1
T2
GND
LVA C461 0.1 11
ADJ
12
ITH
13
VREG
14
NC
15
IC51
HD64F2506RBR26DV
R691
100k
C458
0.47
*: Refer to the PARTS LIST for the value and name of component.
10 - 2
for RF
VCC HV
HV
+5V
+5V
+3.3V
+3.3V
IC54 S5V
S5V
1 5
CTRL VIN
2 R5V
GND R5V
3 4
NB VOUT
T5V
T5V
NJM2871BF05
RXC
RXC
5V REG
SSO
SSO
SCK
SCK
PLST
PLST
PLSW
PLSW
NWC
NWC
DC
ADS
ADS
Regulator
TMUT
TMUT
MOD
MOD
CPUV
VCON
R978 VCON
SQIN
0
SQIN
C465
Q90
+3.3V LVA
LVA
SW 2SA1577
5
SW
4
3.32V
SW
3 3.28V T1
SW T1
2
SW
1 T2
T2
S5C
S5C
LVIN
LVIN
PWON RSSI
RSSI
Q91
LDTC114YE
DET
DET
CPUV NOIS
NOIS
UNLK
UNLK
R984
D12 RORES
1k
CPUV
TLED CPUV
CPUV
RLED +3.3V
+3.3V
RES +5V
+5V
MD2 VCOMO1
VCOMO1
H12 R692 NMI
1k
BATV MCLK
MCLK
NWC C15 VOXV
RSSI BCLKX1
BCLKX1
CBI3 D2
CBI1 D3 BFSX1
BFSX1
MDNSCL BDX1
BDX1
DSCK D6 TEMP
RXD0 D7 AFVI BDR1
BDR1
R706 LVIN
100k
DGND
DGND
RORES D12
DPDN D13 DMOSI
DMOSI
DRES D14 CPUV
CSFT DSCK
DSCK
DSS
DSS
R633
Q97
DMISO
DMISO
4.7k
RES DSIRQ
DSIRQ
DPDN
DPDN
LDTC114YE
DRES
DRES
19.66MHz
1.73Vp-p
R632
CPUV
for DSP
10k
X51
CR-912
C455
R244 15P
1M
SIDE1 H1
SIDE2 H2
CPUV
IC53
5 1
VDD CD
2
VSS
RES 4 3
VOUT MR
NJU7704F3
CPUV
IC52
8 1
VCC A0
7 2
R657 1k WP A1
R2 ESCL 6 3
SCL A2
P3 ESDA 5 4
SDA VSS
R651 1k
24LC1025T