Icom IC-7700 - Passband Tuning (PBT) and IF Filters

9 - 1
SECTION 9 BLOCK DIAGRAM
ATT
AMP
2SC4081x2
Q1061/Q1062
RL1011
X10
CR-772.
BPF
LPF
BUFF
2SC4081
Q1680
DDS
SC-1246A
IC1652
D/A LPF
BUFF
2SC4081
Q680
D/A
DDS
SC-1246A
IC 6 5 1
LPF
LPF
2SK210
Q220
VCO
SW
DTC114Ex6
Q 280-Q285
BUFF
2SC5226
Q352
D/A
BPF
CERAMIC
SFECV10.5MA5
FI101
AM P
3SK294
Q351
BUFF
2SC5226
Q301
BPF X4
2SC4215
Q702
1
2
BUFF
Q1601
2SC4215
AM P
2SC4081
Q151
AM P
2SC4673
Q101
2SK210
Q230
2SK210
Q240
2SK210
Q250
2SK210
Q260
2SK210
Q270
AM P
2SC4673
Q591
BPF
AM P
2SK882
Q801
ATT
HSB88WS
D821
ATT
AM P
2SK882
Q831
ATT
AMP
TC7S04
IC 6 5 2
ATT
AM P
2SK882
Q811
Q833:DTC114EU
Q832:2SB1123
Q 593:DTC114E
Q592:2SB1123
BUFF
2SC4081
Q1021
RL1010
BUFF
Q1070
2SC4081
AM P
Q1043:DTC114E
Q1042:2SC4215
AMP
Q1023:DTC114E
Q 1022:2SC4215
Q 1012/Q1013
DTC114Ex2
I/O
CTRL
LPF
HPF
AM P
TC7S04
IC1651
FIL
LOOP
AD9951
IC 1 0 1
DDS
AM P
2SC4081
Q30
CD74HC4094
IC1
SERI /
PARA
CAL
AD5260BRU50
IC 1 0 9 1
ATT
DDS
SC-1246A
IC501
AMP
2SC5226
Q580
ATT
AMP
TC7S04
IC 5 0 3
FIL
LOOP
2SK210
Q541
BUFF
2SC5226
Q561
ATT
BPF
FI831
FL-356
AM
P
2SC5226
Q302
HPFLPF
LPF
1/200
ATT
IC 6 0 2
TC7S08
HPFATT
FILSEL
DTC114Ex2
Q341/Q441
HPF
LPF
ATT
+5
REG
IC61
TA78L05
+8
REG
IC51
TA7808
HPF
PHASE
DET
DACK_TO_MAIN_UNIT(DSP)
SAD_TO_SCOPE_UNIT
1LO_TO_RF
T2LO_TO_RF
R2LO_TO_RF
T3LO_TO_RF
M KR_TO_RF_UNIT
RL_CTRL
Q1011
DTC114E
RL_CTRL
Q1010
DTC114E
+12_REG
IC10
BA12
HEX_BUFF
TC74HCT7007
IC2
1/2
ATTLPF
AM P
2SC5226
Q303
PHASE
DET
IC 2 0 1
ADF4116
1/8
1/2
TC7S08F
SW
IC1701
10MHz
10M Hz
(10MHz OCXO )
Freq=10MHz
T3LO
(0.491MHz)
(100KHz)
MKRS
0.6MHz
MKR
4.0000000MHz
4.5MHz
T2LO
109.455-124.455MHz
79.455-86.454999MHz
1/21
10.4122038-10.4963312MHz
72.455-79.454999MHz
94.455-109.45499MHz
N=130-250
64MHz
86.455-94.454999MHz
1/N
64.485-72.454999MHz
REF I/O
LEVEL=-10dBm
EXT-REF IN
EXT-REF OUT
PLL UNIT
VA1S- 6S
R2LO
T8V
R8V
SAD(40MHz)
10MHz40MHz
UNLK
(TO CPU)
REFOFF
REFON
O SS1/OSS2
DATA/CK/STB2
STB1- 5/STB1U
DATA/CK/STB5/DRESL
OCK/ODAT/OCS
(TO CPU)
UNLK
64.000MHz
HYB
Cutoff CONTROL
Cutoff CONTROL
64.491MHz
100kHz
VA1S- 2S
DATA/CK/PSL/PST/CN22
DATA/CK/CN22
10MHz
(12.288MHz)DACK
DATA/CK/STB4/DRESL
DATA/CK/STB3/DRESL/CN22
DATA/CK/STB1/STB1U/DRESH
1LO
(64MHz)
(64.491MHz)
MAIN UNIT
OSC UNIT
15V 5V
8V
(64.485-124.455MHz)
+15V
VA1S- 6S
10.4122038-10.4963312MHz
VA1S
VA2S
VA3S
VA4S
VA5S
VA6S
MUT E
CTRL
MUT E
CTRL
DATA/PST/PSL
MKRS