Icom IC-F4101D Service Manual page 33

SECTION 9. BLOCK DIAGRAM
X2
CR-892 15.3MHz
VCON
TCXO
IC4
S5C PLL AK1541
IC
SSO
IC57 SCK
AK2330 PLST
UNLK
DET SQIN
IC60
NJM13403V
DAFO
AFVO
LPF
BEEP
D/A IC60
NJM13403V
MOD DMO
LPF
JTBM450CX
IC60
NJM13403V
BAL TA75S01F
VCON
BUFF
+5V REF
T1 T2 LVA
SSO SSO DISC
SCK SCK
VREF DAST DAST
CLO
CLI
CL CLONE
BUFF
D51:LRB706F
Q81:LDTC144TE
IC55
TPA0211
IC58
TA75S01F
J52 AF AFVO AFO
AMP
AMP
AFON
Q63:2SB1132
IC12
J53
TA7368F Q64:DMC506010R
AFON
1
SP1
AF PWR
2
AMP CTRL VCC
J51 Q58 IC63 Q66
DRA9123Y NJM2783V 2SK3019
PTT XPTT A/D
HPF
DET SW
IC62 IC64 IC63
TC7W66FK NJM12904V NJM2783V
MC51
MIC
ALC
GAIN AMP
AMP
CTRL
Q59 IC64 D53
LDTC114YE NJM12904V L1SS400
AUTO_TX ATX
AMP
CTRL
9 - 1
Q15
2SC4116
Q13
Q17
2SK880 S5V RIPPLE D12
FIL D11
HVD350B
LVIN RX VCO
BUFF
LVA LV
ADJ
LOOP LV
FIL D14
HVD396C TX VCO
LVA LV
ADJ
LPF
D15
1SV309
FM
MOD
X3 BPF
MOD
Q26
2SC4116 45.9MHz Q24
2SC5107
IF IC
IC3:NJM2591V
FI3 D36:D37 Q28
LTM450FW 1SS390 2SC4116
X1
CERAMIC
SQIN RSSI NOIS W/N_D
BUFF
BPF
SW
450kHz
IC21
FI4
LTM450HW
AMP
CERAMIC
W/N_D
BPF
D38,D39:1SS390 SW
Q27:LDTC114YE
450kHz
DET NWC
MDET
NJM2711F
DAFO
DMO
Q901 LINEAR
LDTC114YE
CODEC
DISC W/N SW
IC60
NJM13403V IC902
PCM3008
LIMIT
AMP
BDX1 BDR1 PWADN
IC66 BCLKX1 BFSX1
TC7W53FK
ADS
MOD
DMI
LINE
CTRL
Q67
LDTC114YE
A/D ADS
SW
VOXV
DET
Q11
LDTC114EE
2SC4226
HVD350B VCO R5V
SW
Q10 Q8 D5:HVD142A
2SC5107 2SC5107 D6:HVD142A
TX/RX
BUFF BUFF
SW
Q14 2SC4226 Q9
D16 HVD350B 2SC5107
BUFF
Q12:LDTC144EE 303.65MHz-353.65MHz
Q95:LDTC114EE 353.65MHz-423.65MHz
LPF
403.65MHz-473.65MHz
VCO
RXC
SW
D33,D34:HVD144A FI1 D31:D32
Q29:LDTC114YE FL-442 HVD144A Q23
3SK293
IF A/D XTAL A/D 46.35MHz
AMP SW BPF SW
FI2
MIXER
FL-448
XTAL
BPF
ADS
IC5 FI5
NJM2711F LTUCG450G
CERAMIC
DIF
AMP
BPF
AFON MCG1 S5C
RXC MDET NWC
TXC ATX PLSW
PWON MCG0 TMUT
ADS
SSO CLO
SCK CLI
PLST DAST
UNLK
D60 X51
1SS390 CR-912
SHIFT
SW CPU
19.6608MHz
CSFT IC51
HD64F2506RBR26DV
IC53
NJU7704F3
RES
RESET
CPUV
IC905 X900 Q900 DSIRQ
CR-914 LDTA144EE DMOSI
DMISO
TCXO SHIFT DCSFT DSCK
AMP
SW DSS
DPDN
DRES
12.288MHz
CLKIN
IC901
ADS7886 BDR0 DSP
BFSR0
DIF BCLKR0 IC903
A/D
TM320VC5509AZHH
VREF
Q1
Q4 Q3 Q2
RD07MUS2B
2SC5107 2SC3356 RD01MUS1
PRE PRE PWR
DRIVE
DRIVE
AMP AMP AMP
IC1
TA75S01F
Q21 APC
2SK1829 AMP
GATE RSSI
CTRL
D28 D28 D26 D24
HVB350BYPTL HVB350BYPTL HVB350BYPTL HVB350BYPTL
RF
BPF BPF BPF BPF
AMP
Q22
3SK293
T1
T2
S54
TP70TF5169
CBI0 CBI1
CBI2 CBI3 CH VCC
SELECT
IC52
ESCL R1EX24512ASAS0A
ESDA
EEPROM
DS51 POSWH
Q82:Q83 LNJ115W8PRA VCC
LDTA144EE G
RLED
LED
TLED CTRL
R
Q92:TPC6103F
POWER Q93:LDTC114YE
SW D59:LDAN222
S51
IPTT PWON
S52
SIDE1
SIDE2
S53
AF VOL
+3.3V LINE
FILTER
CPUV
IC904
BDR0 BDX0 EN25Q40
FCS BCLKX0
FLASH
350-400MHz
400-470MHz
450-520MHz
D3:HVD142A
D22:HVD142A
ANT
LPF
SW
D1:LRB751S
D2:LRB751S
PWR
DET
T1
Q71:KTA2015
Q86:LDTC114YE
S5C
S5 S5V
REG
Q72:2SA1586
IC54 Q87:LDTC114YE
NJM2871BF05 RXC
R5 R5V
+5V REG
REG
Q73:KTA2015
Q88:LDTC114YE
TXC
PWON T5 T5V
REG
IC65 +5V
BD9141MUV
CPUV
DC-DC
3.3V
Q90:2SA1577
Q91:LDTC114YE
+3.3V +3.3V
PWON REG
DVDD_3.3V
LINE
FILTER
LINE 3.3V_VDD
FILTER
LINE +3.3V_A
FILTER
IC900:TPS62204
CVDD_1.6V
DC-DC
1.6V