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9 - 1
SECTION 9. BLOCK
DIAGRAM
D1
1SV172
ANTENNA
AM
DET
Q25_1/2
XP6501
D4~D5:1SV308
D28~D29:1SV308
ATT
D2:MA2S077
Q2:2SC4738
Q3:XP4312
RF
AM P
IC1
UPC2746TB
BPF
D53:SVC347
BPF
D51~D52:MA2S077
D31:HVD328C
D35:HVD328C
D37~D42:1SV308
D40~D42:1SV308
D42:ISV308
LPF
BPF
D12:HVC375B
D13:HVC375B
BPF
RF
AM P
Q5:2SC5008
D 20:MA2S728
D 21:MA2S728
IC5
UPC2757TB
1stMix
BPF
XTAL
FI2
FL-293
AM/NFM
IF
AM P
Q31:2SC5006
D50:MA2S728
LO
AM P
Q36
2SC5006
3rd-LoAMP
IF
AM P
Q26:XP6501
D 45:MA2S728
X1
CR-869
IC8
UPC2757TB
2ndMix
LPF
BPF
D 32:HVC350B
D 36:HVC350B
RF
AM P
Q12:2SC5006
D 33:MA2S728
D 34:MA2S728
BPF
D25:HVC375B
D26:HVC375B
RF
AM P
Q6:2SC5624
D 23:MA2S728
D 22:MA2S728
BUFF
Q8:2SC5231
IC3:MB15T61UL
BUFF
Q12:2SC5227
BUFF
IC2:UPC2746TB
D1~D2:1SV309
Q1:2SC5006
1VCO
Q2:2SC5006
D3:HVC417C
2VCO
Q3:2SC5006
D4:HVC417C
3VCO
Q4:2SC5006
D5:HVC417C
4VCO
D7~D10:1SV308
D1:1SV314
Q1:FH102
VCO
FIL
RIPPLE
Q4:2SC4617
FIL
LOOP
IC1:MB15E03SL
BUFF
Q3:2SC5277
FIL
LOOP
Q6:2SK880
Q7:2SC4117
Q37:XP1114
Q39:UNR9213J
RF
AM P
Q7:FH102
D 14:MA2S728
D 15:MA2S728
RF
AM P
Q 41~Q42:2SC5006
D 19:MA2S728
D 18:MA2S728
AF
AM P
AF
AM P
J4
SP1
D44:DAN235E
S21
E
UP
DN
HEAT
SENS
X1
CR-774
Q25_1/2:XP6501
XP6501
BPF
1stIFFIL
FI1
EFCH429MKQP1
BPF
CERAMIC
D47:DAN235E
FI3:ELFY450E
D48:DAN235E
J5
1
1
2
2
D7~D10:1SV308
D49:DAN235E
LPF
D56:1SV308
Q45:UNR9115J
Q 23:UNR9115
LPF
D27:1SV308
Q10~Q11:XP1113
Q46:UNR9213J
BPF
D 57:MA2S077
Q 47:UNR9113
AFON
AFON
AFO
LIMIT
BAND
SW
BAND
SW
FM IF-IC
ATT
SW
BAND
PLL
IC
Lo
SW
VCO
3V
1VCO3V
2VCO3V
3VCO3V
4VCO3V
IC
PLL
R3V
AM3V
M ODE
CONT.
MODEC1
R3V
WFM
OSC
R3V
R3V
R3V
R3V
R3V
OSC
OSC
HF3V
BAND
SELECT
HF3V
VHF3V
UHF3V
G3V
OSC
1st VCO UNIT
2nd VCO UNIT
I C13:TA31136FN
448.7500 MHz
409.4500 MHz
939.1000M~1170.1495 MHz
512.6000M~712.0995 MHz
311.9500M~520.8995 MHz
700.9000M~939.0995 MHz
I C9:TC7W53FK
SW
BC
VHF
UHF
800M
1G
19.2 MHz
19.2 MHz
0.1500–1300.0000 MHz
MIXOUT
800M3V
R3V
AGC
AF SW
AGC
IC9:NJM2070M
IC10:SM6451B
AFVCC
AF VR
AF FIL
INTSP
CLONE
EXT SP
CLONE
IC8:TC7W04FU
D16:1SS400
Q8:2SA1832
BUFFER
SIGNAL
IC12:LM2904PWR
Q16:UNR9115J
FIL
MODEC 1
SW
MODE
Q20:XP6501
Q23:2SJ144
D 22:MA2S111
Q18:2SC4738
MONO
AM_DET
REG
Q2:2SA1588
CLOCK
Q11:2SB1201
VCC
+
REG
REG
Q5:2SC4617
ENC
Q24:2SC4738
CPU3V
IC14:24LC512T
TEMP
VP
+10V
CPU3V
AF
R3V
+3V
Initial
REG
Matrix
+3V
IC6:S-80928
CPU3V
DC-DC
RESET
CPU3V
BATT
LIGHT
12.288 MHz
DCK
IC11:TC7W04FU
+3V
-
DUD
R3V
EEPROM
REG
VCC
BACKLIGHT
IC3:NJU7775F32
Q12:XP1501
CPU
IC7:HD64F2238
LCD
key
AFVCC
D15:HVC376B
LCD
SHIFT
KEY
D 24-D27:1SS372
IC4:NJU7775F32
AGC
AM3V
Q10:2SC4738
R3V
BAR
VP
CONV.
ANT
ANT
TUNE
LEVEL
Q21:XP4601
D19:SVC347
FSET
CHARGE
CONTROL
EXT DC
Q 27:HAT1023R
D2:SB07-03C
D 35:MA2S728
IC18:BQ24064
IC15:24LC512T
DS10-DS12:SML-A12WT
LOGIC UNIT
MAIN UNIT
(RF:Earphone ANT)
(RF:Earphone ANT)
(RF:Earphone ANT)
(RF: Earphone ANT)
MAIN UNIT
BAND
SW
BARAN T
B2V
B1V
M ODE
MODEC1
SW
AM3V
X3:CDBKB450K
Q38:XP1114
Q40:UNR9213J
0.15-0.45 MHz/1.62-76 MHz
0.45-1.62 MHz
76-350 MHz
350-470 MHz
470-833 MHz
833-1310 MHz
or
EAR
1~4 VCO3V
EARANT
SW
R3V
R3V
+3V
TONE
+3V
IC20:CD4066BPWR
I C19:LMV321IDCK
CTRL
AM
R3V
AGCC
R3V
M ODE
CONT.
AM3V
3VREG
VCO3V
1stVCO
VCC
R3V
G3V
VHF3V
R3V
REG SW
UHF3V
Q18~Q19:XP1113
800M3V
R3V
Q17:XP1113
Q11:XP1110
AGC
SW
ANT
D3~D14:MA2S111
I C16:BH2220FVM
TRAC
ATTC
D/A
Q43:2SA1577
Q 44:2SC4738
D 54:MA2S111
D 55:MA2S728
BUFF
IC1:TC7W08FU
CHASISS
ESIO
ECK
LCDDT
LCDCS
LCDCK
LCDRS
LCDRES
cc
LCK
LDATA
LCK
LDATA
DASTB
VRSTB
DATAC
PCK
PCK
PDAT
A
PS
PDAT
A
PS
PSTB1
PSTB2
CL_OUT
CL_IN
CL_IN
CL_OUT
EXT
WRITER
MD2
RESET
RXD
TX
D
RESET
CTOEN
RTOEN
VSCAF
TCON
CKO
VCO1
VCO2
VCO3
VCO4
1VCO3V
2VCO3V
3VCO3V
4VCO3V
HFC
B1C
B2C
ANTS
W
BARANT
VHFC
UHF
C
800MC
GC
AGCC
R3C
BASS_B
BASS_C
TREBLE_B
TREBLE_C
AF_TRUTH
BEEP
VRCK
VRDATA
NOISE
RSSI
CHG
CHGC
EAR
ATT
SHIFT
AGC
AGC
AGC
ATTC
ATTC
ATTC
ATTC
ATTC
TRAC
TRAC
TRAC
AGC
ATTC
TUNE
PCON
HVDE T
BATTI
N
HVIN
HVDET
VRCK
VRDATA
I0
I1
KR0
KR1
KR2
KR3
KR4
KR5
KS0
KS1
KS2
KS3
POWER
KEY
Li-ion
BATT
DET
BDET
POWE R
D401:RR264M
EXT/BATT
DET
D28~D29:MA2S111
D31~D32:MA2S111
D 33:MA2S111
D34:MA8039
Q25:UNR9213J
D 37:MA2S111
Q26:UNR9213J
MUTE
CONT.
S METER
AGCC
TRAC
TUNE
TUNE
SHIFT3V
SHIFT3V
SHIFT3V
TUNE
MODEC2
+3V
B1V B2V
B2V
+3V
+3V
+3V
FSET
VCC
+3V
R3V
NMI
FW
E
SCK2
or
449.8500 MHz
408.3500 MHz
WFM
VCO3V
VCO3V
VCO3V
R3V
VCC
Q29:2SC4213
Q 30:UNR9115
SHIFT
BUFF
SHIFT3V
Q28:2SA1588
+3V
R3V
AF_TRUTH
TRUTH
D58:MA2S077
(FM RX)
(AM RX)
(FM RX)
(AM RX)
Summary of Contents for IC-RX7
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 8 VOLTAGE DIAGRAM 10 Feb 2010...
Page 16: ...SERVICE MANUAL ADDENDUM CONTENTS REPLACEMENT PAGE 6 1 PARTS LIST 1 VOLTAGE DIAGRAM 8 Feb 2009...
Page 30: ...S 14510XZ C1 Aug 2008 WIDEBAND RECEIVER...
Page 64: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14510XZ C1 2008 Icom Inc...