Block Diagrams - Icom IC-7800 Service Manual Addendum

SECTION 9

BLOCK DIAGRAMS

Q503
FI501
UMH11N CFWS455D
MAIN UNIT (TX PART)
MODS CERAMIC
FILSEL
BPF
20k
IC501/IC502
FI502
Q501 Q504
NJM5534 IC503 CFWS455IT D505
3SK294 2SK882
TA4107 HSB88WS
TX IF IN (TX36K) IF CERAMIC IF
LPF ATT
(DSP-TX UNIT) AMP BPF AMP
4k
Q806/Q807
2SC4081
TX MONITOR (MON)
AMP
(DSP-A UNIT)
DRIV ALC
SW
Q808
DTA114E
Q809
MONS
DTC114E
3rd Lo IN
(PLL-A UNIT) 491kHz
2nd Lo IN 64.0MHz
ATT
(PLL-A UNIT)
TX SCOPE OUT
(MAIN UNIT)
Q507
2SC4673
1st Lo IN
LO
LPF
(PLL-A UNIT) AMP
RX-A (RF PART)
(PLL PART)
RX-A 1st Lo
(PLL-A UNIT)
90deg BUFF
Q1651 IC1651
2SC4215 TC74LCX00
IC1651
TC74LCX00
RX-A 2nd Lo R2LO
LO
ATT BUFF
(PLL-A UNIT) AMP
IC1651
TC74LCX00
BUFF
AGC-A IN DAGCA AGC
(DSP-A UNIT) AMP
IC1653
IC1653
NJM072
NJM072
RX-A AGC DET MAGCA AGC
(DSP-A UNIT) AMP
IC1503 Q1501
IC1652 BA15532 IC1501
NJM5534 2SC4835
D1653 1SS355 9A41
IF
BUFF
AMP
AGC
DET
Q1502
RX-A IF OUT 2SC4835
IF
90deg
IF
(DSP-A UNIT) AMP
BUFF
AMP
IC1506 IC1505 IC1505 IC1502
NJM5534 NJM074 NJM074 IC1504 9A41
NJM5534
Q1352
2SC5551
SCOPE IF-A OUT
BUFF
(SCOPE UNIT)
RX-B (RF PART)
(PLL PART)
RX-B 1st Lo IN
(PLL-B UNIT)
90deg BUFF
Q1651 IC1651
2SC4215 TC74LCX00
IC1651
TC74LCX00
RX-B 2nd Lo IN R2LO LO
ATT BUFF
AMP
(PLL-B UNIT)
IC1651
TC74LCX00
BUFF
AGC-B IN DAGCB AGC
(DSP-B BOARD) AMP
IC1653
IC1653
NJM072
NJM072
RX-B AGC DET MAGCB
AGC
(DSP-B BOARD) AMP
Q1501
IC1652 BA15532 IC1503
IC1501
2SC4835
D1653 1SS355 NJM5534
9A41
IF
BUFF
AMP
AGC
DET
Q1502
2SC4835
RX-B IF OUT IF
90deg
AMP IF
(DSP-B UNIT)
BUFF
AMP
IC1506 IC1505 IC1505 IC1502
NJM5534 NJM074 NJM074 IC1504 9A41
NJM5534
Q1352
2SC5551
SCOPE IF-B OUT
BUFF
(SCOPE UNIT)
IC820
µPC4094
RF
LPF ATT
AMP
137KHz
BPF
FI503 Q508 1.6-2M
Q506
D506
FL-348 2SC5501
2SK882
HSB88WS
BPF
IF RF
BPF LPF ATT ATT
AMP AMP
2-3M
BPF
3-4M
BPF
4-6M
BPF
6-8M
BPF
8-11M
MDAT/MCK/MSTB1/MSTB2
BPF
11-15M
SERI/
BUFF BPF
PARA
IC250/IC260 IC251/IC261 TXB0-B10 15-21M
CD74HC4094M TD62783A
ATT BPF
22-30M
BPF
50-54M
Q1105 Q1104 Q1101
2SC5501 2SC3950 2SC3950
LO LO LO
AMP AMP AMP
HF15V
CTRL
Q1102 DTC114E
Q1103 2SB1123 IC1051
SD5400
HPF
Q1213 DTC114E
VH15V Q1214 2SB1123
CTRL
Q1301
2SC4673
LO
HPF LPF
IC1702 AMP
CD74HC4094
HF3V
VH3V
CTRL 1IFW
DATA
1IFN
1IFNN
FI1401
FL-364A
XTAL
BPF
15kHz
Q1402/Q1403
2SC4402
FI1402
FL-358A
IF
XTAL LPF LPF
AMP
BPF
6kHz Q1211/Q1212
50/HF_SEL 50/HF_SEL
MMBFU310
FI1403
IC1081 IC1081
FL-396
FIL_SEL FIL_SEL
µPG2009 µPG2009
IF
IC1403 IC1402
LPF XTAL
AMP
µPG2009 µPG2009
BPF
Q1401
3kHz
2SC5501
Q1105 Q1104 Q1101
2SC5501 2SC3950 2SC3950
LO LO LO
AMP AMP AMP
HF15V
CTRL
Q1102 DTC114E
Q1103 2SB1123
IC1051
HPF
Q1213 DTC114E SD5400
VH15V Q1214 2SB1123
CTRL
Q1301
2SC4673
LO
HPF LPF
IC1702 AMP
CD74HC4094
HF3V
VH3V
1IFW
CTRL
DATA 1IFN
1IFNN
FI1401
FL-359A
XTAL
BPF
15kHz
Q1402/Q1403
2SC4402 FI1402
FL-360A
IF
XTAL LPF
AMP
BPF
6kHz Q1211/Q1212
50/HF_SEL
MMBFU310
FI1403
IC1081
FIL_SEL FL-397
FIL_SEL
µPG2009
IF
IC1403 IC1402
LPF XTAL
AMP
µPG2009 µPG2009
BPF
Q1401
3kHz
2SC5501
µPG2009
9 - 1
IC2 TA78L08 PA200W BOARD
Q1 2SB1119
Q2 DTC114E
PAT8
DC_BUFF
Q101
Q801 Q201 Q301
PD01MUS1
2SC5551 3dB PD550D3 SD2918
YGR RF PRE PWR
DRIVE
ATT ATT
AMP AMP DRIVE AMP AMP
ID_DET
+15V
THML TEMP
+48V
DET
IDH
IDL
ATT
PA UNIT
THML LOGIC UNIT
IC330
M62352AGP FAN
Q804 UMH11N IC821
TRV-SW
Q805 DTC114E NJM2904
FANI
D/A CPU FAN-IDET
TRVSM
IC604
HD64F2377VFQ33V
FANV FUN
CTRL FANG
Q821 2SB1201
IC821 NJM2904 Q822 2SC4081
TRV OUT
DIGISEL UNIT (A)
IC1 RL2
Q201
CAT24WC256K1.8
2SC5551
RF
E2ROM
AMP
FROM CPU
DDAT/DCK/DSTBA
TO/FROM CPU
Q1007/Q1008
2SC5551
P.AMP1
P.AMP_ON P.AMP_SEL P.AMP_SEL P.AMP_ON
Q1006
2SC5551
LPF
P.AMP2
RL1006 RL1005 RL1004 RL1003 RL1002
HPR1
DATA
RL_CTRL
HPR2
Q1001
IC1701 CD74HC4094
2SC5551
IC1703 TD62783
Marker HPOFFL HFDW
(100kHz)
VPR1
VPOFFL
Q1209/Q1210
2SC5551
RL1206 RL1203 P.AMP_SEL P.AMP_SEL DW_AMP_SEL
Q903
2SC5551
P.AMP1
LPF
P.AMP2
RL903 RL902
P.AMP_ON P.AMP_ON
DIGISEL UNIT (B)
IC501 RL502
Q701
CAT24WC256K1.8
2SC5551
RF
E2ROM
AMP
FROM CPU
DDAT/DCK/DSTBA
TO/FROM CPU
Q1007/Q1008
2SC5551
P.AMP1
P.AMP_ON P.AMP_SEL P.AMP_SEL P.AMP_ON
Q1006
2SC5551
LPF
P.AMP2
RL1006 RL1005 RL1004 RL1003 RL1002
HPR1
DATA
RL_CTRL
HPR2
Q1001
IC1701 CD74HC4094 2SC5551
IC1703 TD62783
HPOFFL HFDW
VPR1
VPOFFL
Q1209/Q1210
2SC5551
P.AMP_SEL DW_AMP_SEL
RL1206 RL1203 P.AMP_SEL
Q953
2SC5551
P.AMP1
LPF
P.AMP2
RL953 RL952
P.AMP_ON P.AMP_ON
FILTER UNIT TUNER UNIT
1.8M
D101/D102 D151/D152 D201/D202
LPF
HSM88AS HSM88AS HSM88AS
CTIN
SWR-DET P-DET R-DET
3.5M
LPF
Q401
AN3
4/5M TRC
Q402
SD2931 LPF
IC1
M38022
FOR/REF(MAIN)
AN0/AN1
7M TUNER_
IKEY/ISTA/TDRS
CPU
LPF TO/FROM CPU
FROM CPU 3R5M/4R6M
10M CSTB
BAND
CTRL 5M/4R6MOL
LPF
IC51 CD74HC4094TD62783 Q3-Q10
IC52 BU4066 DTC114E
14M Q51/Q52/Q53 DTC114E
LPF
FSTB
RL_CTRL
18/21M
LPF
IC55 CD74HC4094
IC57 TD62783
24/28M
CTRL
LPF
RL_CTRL
BOARD
50M IC56 CD74HC4094
IC58 TD62783 THRU1
LPF
THRU2
Q55 DTC114E
LPF1-9
MF1
RL21
(B0A)
D_SEL
LPF
-1.6MHz
BPF
(B1A)
BPF
1.6-2MHz
D_S_CTRL
IC4/IC5 (B2A)
BU2099
BPF
2-3MHz
(B3A)
BPF
3-4MHz
(B4A)
BPF
4-6MHz
(B5A)
BPF
TO BPF RL
6-8MHz
B0A-B10WA
RL_CTRL
ATT
(B6A)
RL1001
BPF
8-11MHz
(B7A)
DW_AMP
BPF
HF50A
11-15MHz
(B8A)
BPF
15-22MHz
(B9A)
BPF
22-30MHz
RL351
(B10A)
DW_AMP_SEL
Q901
BPF
2SC5551
50-54MHz
DW_AMP
(B10WA)
RL901 RL900
BPF
30-50MHz/
54-60MHz
VPR2A
VHDWA
BPF UNIT
(B0B)
LPF
-1.6MHz
(B1B)
BPF
1.6-2MHz
RL521
(B2B)
D_SEL
BPF
2-3MHz
RL851 12dB
BPF
(B3B)
BPF
3-4MHz
(B4B)
D_S_CTRL
IC504/IC505
BPF
BU2099
4-6MHz
(B5B)
BPF
6-8MHz
(B6B)
BPF
8-11MHz
(B7B)
HF50B
BPF
11-15MHz
TO BPF RL
(B8B)
B0B-B10WB
BPF
ATT 15-22MHz
RL1001
(B9B)
BPF
22-30MHz
DW_AMP
(B10B)
BPF
50-54MHz
(B10WB)
BPF
30-50MHz/
54-60MHz
Q961 DW_AMP_SEL
2SC5551
DW_AMP
RL951 RL950
VPR2B
VHDWB
ANT-SW UNIT
D301/D302
RL251 HSM88AS
RL252 RL253
1
CRNT ANT1
DET
ANT1A
ANT1B
THRU1 THRU2
ANT1G
IC301
NJM2903
AMP
1
ANT2
ANT2A
MOTOR NETWORK
CTRL
BOARD
ANT2B
ANT2G
C-NET
C-NET
1
ANT3
Q300 2SB1123
Q301 DTC114E
ANT3A
FAN
L-NET
CTRL
ANT3B
ANT3G
RL_CTRL RL_CTRL
1
ANT4
IC401 IC402
ANT4A
TD62783 TD62783
C-NET DATA / BAND DATA
ANT4B
Q11-Q14
RN2427
MF3 ANT4R
BUFF
ANT4G
RL_CTRL
IC11
BU2099
TRV TX
RL402
TRVANT
BPDAT/BPCKA/BPSTA MR8V
1
RL_CTRL
IC101/IC102
BU2099
Q381/Q387 RL381
TRVS
DTC144E
RL401
DWSPA
Q401 2SC4116
D402 MA742
RSELA
RMUTA
REVERSE
RL_CTRL
AT3A TRV PO_DET
Q402 2SC4081
AT6A Q403 DTA114E
Q404 DTC144E
6dB
12dB 3dB
ATT ATT ATT SPLITTER
RL355 RL371
RSELB
RL954
6dB 3dB RL855 RL871
ATT ATT ATT
RMUTB
REVERSE Q873 2SC4116
RL_CTRL
TRV PO_DET D872 MA742
Q872 2SC4081
Q871 DTA114E
Q874 DTC144E
AT6B AT3B
AT12B
REG UNIT
IC401/IC402
BU2099
DWSPB
RL_CTRL
+48V
+15V
-15V
BPDAT/BPCKA/BPSTB
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE
COMMON LINE
LINE
DATA BUS