Block Diagram - Icom IC-7410 Service Manual

SECTION 9.

BLOCK DIAGRAM

RF-A UNIT
FI911
FL-434
64.455MHz(BW=15kHz)
XTAL
HTIF ATT
BPF
HIFWS
64.455MHz(BW=6kHz)
FL-430(opt)
I C303 XTAL
HIFOP1S
CD4094BPWR BPF
HIFOP2S
B0
MDAT5
S/P
MCK5 B7
CONV
HPOFS
RASTB5 HIFOP1S
DRESL5 HPR1S HIFOP1K
HPR2S
64.455MHz(BW=3kHz)
B1
FL-431(opt)
I C305
B8
CD4094BPWR XTAL
B4
BPF
B6
S/P
HATTS
CONV
B3
B8W HIFOP2S
B5 HIFOP2K
B2
I C1222 I C1222
NJM074M NJM074M
HRIF Σ 90deg
Q481/Q482/D481
2SD1664/KTC4075/KDS122
14V
RX
R8V
SW
HRXS
PLL UNIT
Q491/Q492/D491
2SD1664/KTC4075/KDS122
TX
T8V
SW
HTXS
I C353
SN74AHC244
LEVEL
PDAT5/PCK5/PST1/PST1U CONV
FI401
Q301 IC351 FL-423
MCLK KTC3770U AD9951 64.455MHz
388.5MHz
BUFF BPF DD S LPF ATT BRF
DRESH
PDAT5/PCK5/PSTP
X151
Q151 Q201 I C201 Q251 Q271
CR-893(32MHz)
KTC3880 KTC3880 ADF4116 2SK508 KTC3770U
PLL
REFV BUFF LPF AMP BUFF
IC
REF=500kHz
UNLK
DET
D201/Q202/Q203
KDS4148/KRA302/KRC402
I C703 IC704
SN74AHC1G08 SN74AHC1G08DCK
MKR SW MKR SW
MKRS MKRS
Q551 Q552 I C701
KTC3880 64MHz KTC3880 SN74AHC1G04
MKRS
X2 BPF BUFF AM P DDS D/A
IC702
SC-1287A
Q901
PDAT5/
KTC3880S
PCK5/
PSTD/
BUFF
PSTM/
I C124
DRESL5
TA7808F
+8
14V 8V
REG
Q571
I C123 KTC3880S
NJM2831F10
BUFF
+10
10V
REG
I C121 CTRL
TA7805F SW
+5 Q 900/Q902/Q903
5V
REG KRC402X2/KRA302
I C122
BA33BCOFP
AM P
P-CLK
+3R3
3R3V
REG
I C661 I C662
SN74AHC1G04 CY22381
Q741 Q721/Q722/Q723/Q724
2SC3357 2SK1740x4 fc=60MHz
IF
ATT LPF
AM P
R8V
Q811
2SC3357
LO
LPF
AM P
64.485~
124.455MHz
Q611 I C601
3SK264 UPC2708TB
IF IF
LPF LPF ATT
AM P AMP
D651
HSB88W S
ALC
Q1201
I C1221 Q1071/Q1072 Q1051
TS522ID KTC3770U D1102 2SC4402 2SC5501A
HSB88WS
IF IF IF
BUFF
AMP AMP AM P
D1101
HAGC
HSB88W S
IF
BUFF
AMP
I C1221 Q1251
TS522ID KTC3770U
I C1121
TC74LCX00FT
BUFF
IC1121
TC74LCX00FT
BUFF 90deg
I C1121
TC74LCX00FT
64.485-86.455MHz
BUFF
ATT BPF
HRXS
I C501
86.455-124.455MHz UPC2709TB
BPF AM P LPF HPF
CTRL CTRL CTRL
H1BS
SW SW SW
UNLK
Q 451/Q452 Q 421/Q422 Q 501/Q502
KRC402/KRA302
2SK1829/KRA302 KRC402/KRA302
Q701
KTC4075 491kHz
LPF BUFF BPF ATT
FI981
FL-436
64.491MHz
D951
XTAL
ATT ATT
BPF
Q 900/Q902/Q903
HSB88WS
KRC402X2/KRA302
CTRL
HRXS
SW 491kHz
BPF ATT T3Lo
M AIN
ATT
T2LO
M AIN
TXS
LPF ATT
CODEC_CLK
M AIN
9 - 1
BPF UNIT
Q 511/Q512
2SC5551Ax2
PRE
LPF
AM P
0.03-1.6MHz
B0
PREAMP
HPR1S
SW
BPF HPF
Q514/Q515/Q554/D512
KRA302/KTA402/KTA2015/KDS2015
1.6-2.0MHz
PRE
B1
AM P
Q532
2SC5551A
BPF
PREAMP
HPR2S
SW
2.0-4.0MHz
Q534/Q531/Q533/D531
B2
KRC402/KRA302X2/KDS4148 RL801
ATN207
BPF
PREAMP
HPOFS
SW
4.0-8.0MHz
B3
Q551/Q552 RL501
KRC402/KRA302
ATN207
BPF
8.0-11.0MHz
LPF
B4
RL601
B5 ATN207
BPF
LPF
11.0-15.0MHz
B5
RL1001
B8
ATN207
BPF
15.0-22.0MHz
B8W B6
RL1101
ATN207
BPF
Q1141
KTC4080
22.0-30.0MHz
LO
ATT
B7
AMP RL901
ATN207
BPF
50.0-54.0MHz
B8
RL701
ATT
ATN207
BPF
30.0-50.0MHz
54.0-60.0MHz
B8W
H1FS
I C201
BGA616
YGR
ATT BPF ATT
AM P
HEAT FIDL
HTHL SENS
Q201 Q 221/Q222 Q 241/Q242
H14V
RD01MUS1 RD15HVF1/RD15HVF1 RD100HHF1/RD100HHF1
PRE PWR
DRIVE
ATT
DRIVE
AM P AM P
ATT BIAS
HPID1V HDID1V
HDID2V
I C301
NJM2904
HFID1V
HFID2V
I C103
PSTP
CD4094BPWR
PSTD
PDAT5 PSTM
S/P
PCK5 PSTC -12V
CONV
PSL5 PST1
PST5 PST1U
I C104
CD4094BPWR
PA-A UNIT
H1BS
S/P
H1FS
CONV
PSTC
DRESL5
CTRL UNIT
HF ANT1 HF ANT2
ATT
I C801
RL141
TA7805F
UA2-12NU
HATTS
+5
14V 5V
REG
I C702
BR24L32FV
ANTS
RL501
RESET EEPROM
D401 I C811
I C431
HSM88AS S-80851
NJM2903
1.8M CURRENT ANTI
AMP
RL802 DET
LPF FORV5V I KEY
ATN207
RL351 IC841
SN74HCT1G86
L1
ISTA BUFF TUNER
3.5/3.8/4.63M
RL502
CPU
LPF
THRU
ATN207
NETWORK
IC701
UNIT THRI ISET
R5F212A7SNFP
L2
TUNING Q831/Q832
5/7M NETWORK KRC402X2
RL602
LPF BUFF
ATN207
X701
L3 DRESL
CR-520
10/14M (19.6608M)
RL1002
RL621
RL301 T5V
LPF
SIP-1A
ATN207
Q 281/Q282 Q 820/Q822/Q821
2SB1123/2SD1619 KRC402x2/KRA302
L4
T/R T/R
18/21M CTRL SW
RL601
RL1102 D251
SIP-1A
U05G
LPF
ATN207
LPF
HTXS
D151/D152/Q151
HSM88AS/
L5
HSM88AS/2SK515 I C171
24/28M D602 MA3J7420 NJM4558
RL902 RESIST
AM P
PWR DET
LPF
DET
ATN207
I C171
L6
NJM4558
50 M RL PHASE
AM P
RL702 CTRL DET
LPF
Q603/Q621 IC111/IC121/IC131/D101/D102
ATN207
KTC4075/KRA302 TC74AC04/TC74ACT32/
TC74AC112/HSM88AS/HSM88AS
D11/D12
L7
HSM88AS IC31
NJM4558
SWR
AM P
DET
FORV5V
IC41 IC41
NJM2904V N JM2904V
I C371
NJM2904 AMP AM P
FORV REFV
IPDL AMP
ID
DET
FIDH
COMMON DC 13.8V 1 3
FILTER 2 4
RL51
S18
14V
SW12
I C101
TA7808F RL
PWRS
CTRL
+8 J462
8V
REG 1
Q603/Q621
EKEY
I C121 KTC4075/KRA302 2
ESTA
3
TA7805F
14V
4
+5
5V
REG
IC431
BH2221
HPID1V
DC-DC MCK5 HDID1V
MDAT5 D/A HDID2V
PAASTB5 HFID1V
IC131/Q131/D131
HFID2V
BD9851/CPH6316/RB160L
I C432
L1
CD4094B
L2
L3
S/P
L4
CONV
PASTB5 L5
DRESL5 L6
L7