![background image](http://html1.mh-extra.com/html/icom/ic-rx7/ic-rx7_service-manual-addendum_3638041061.webp)
10 - 4
*; Refer to “PARTS LIST.”
1k
R194
0.001
C220
0.01
C278
2SC5006
Q36
XP1114
Q37
1
2
3
4
5
0.
1
C259
ELFY450E
FI3
I
O
XP1114
Q38
1
2
3
4
5
100K
R184
22K
R114
180
R203
0.01
C247
0.01
C313
1.5K
R185
680
R214
0.001
C280
0.01
C276
XP6501
Q25
1
2
3
4
5
6
0.01
C187
47K
R190
15
R97
470P
C300
FL-293
FI2
1
2
3
4
1.5K
R189
82P
C297
470
R204
R169
4.7K
AXK5F16535Y J
J2
1 2
3 4
5 6
7 8
9 1 0
11
12
13
14
15
16
1k
R218
0.01
C291
0.
1
C256
150K
R142
R157
10K
470P
C270
47P
C178
DAN235E
D47
DAN235 E
D49
0.001
C272
0.
1
C265
UNR9213J
Q39
0.
1
C258
1.5M
R216
DAN235E
D44
0.
1
C292
R143
150K
2SC5006
Q31
0.001
C208
0.001
C285
100K
R129
47P
C167
*C242
150P
C217
R179
4.7K
10K
R173
XP6501
Q26
1
2
3
4
5
6
0.001
C162
0.
1
C262
1M
R118
0.001
C225
0.001
C221
0.001
C316
0.001
C189
A XK5F16535YJ
J1
1 2
3 4
5 6
7 8
9 1 0
11
12
13
14
15
16
47K
R126
DAN235 E
D48
220K
R187
UPC2757TB
IC8
1
RFI
2
GND
3
LO
4
PS
5
VCC
6
IFO
0.1
C261
0.01
C253
15K
R188
CP6
Reference Frequency check point; CP6
47P
C168
0.001
C142
UPC2757TB
IC5
1
RF I
2
GND
3
LO
4
PS
5
VCC
6
IFO
0.01
C296
15K
R195
47P
C172
0.
1
C228
0.001
C181
12K
R213
MA2S728
D50
470P
C266
10
C306
0.001
C206
3.3U
L43
*R15 0
22P
C244
0.001
C279
UNR9213J
Q40
0.01
C194
3.3K
R138
0.001
C284
0.001
C139
0.001
C223
0.01
C269
R168
10K
0.001
C188
CDBKB450KCAY24
X3
6.8N
L22
R154
4.7K
UNR9115J
Q23
0.01
C201
R162
15K
10
C207
0.01
C275
0.
1
C263
0.001
C239
100
R109
TA31136FNG
IC13
1
OSCIN
2
OSCOUT
3
M IXOUT
4
VCC
5
IFIN
6
DEC
7
FILOUT
8
FILIN
9
AFOUT
10
QUAD
11
IFOUT
12
R SSI
13
N-DET
14
N -REC
15
GND
16
MIXIN
0.001
C402
0.001
C406
0.001
C401
MA2S728
D45
0.001
C203
EFCH429MKQP1
FI1
I O
22N
L23
3P
C190
10P
C405
4.7K
R141
4.7K
R148
0
R149
3.3U
L41
2.7U
L51
22P
C414
0
R167
4.7K
R172
100
R181
HSJ1456-010320
J4
04-730A3-02BKA
J5
M PZ1608S221A
EP10
0.0047
C415
0.
1
C416
M PZ1608S221A
EP9
0.01
C183
MMZ1608D121B
EP6
MMZ1608Y121BT
EP11
MMZ1608Y121BT
EP12
680
R196
150
R98
270K
R101
6.8K
R110
47K
R210
100P
C421
0
R227
3 .5P
C174
TC7W53FK
IC9
1
COM
2
INH
3
VEE
4
GND
5
A
6
CH1
7
CH0
8
VCC
2SC4738
Q44
MA2S111
D54
MA2S728
D55
4.7K
R229
2.2K
R230
0.001
C424
0.001
C425
0.001
C426
2SA1577
Q43
MMZ1608Y121BT
EP13
MMZ1608Y121BT
EP14
22
C423
22
C422
AXK3S50335G
J3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
21
30
22
29
23
28
24
27
25
26
56K
R225
15P
C226
68K
R236
0.033
C286
UNR9213J
Q46
0.22
C434
82
R89
UPC2746TB
IC1
1
IN
2
GND
3
GND
4
OUT
5
GND
6
VCC
82
R86
100
R87
0.
1
C157
CR-869
X1
1
VCONT
2
GND
3
OU T
4
VCC
0.01
C435
0
R237
0.1
C158
0.1
C141
15U
L44
82P
C301
120U
L25
100P
C249
100P
C246
100P
C245
0.001
C438
0.001
C439
0.001
C440
0.001
C441
0.001
C442
0.001
C443
1.5K
R128
330K
R113
1
C444
47P
C445
120
R85
0.1
C173
33N
L24
1
C403
0.033
C404
0.033
C191
220
R215
15K
R108
PDATA
PSTB1
PCK
WFM
VP
PSTB2
PDATA
PCK
+3V
OSC
PDATA
VCO4
PCK
ATTC
VCO3
VCO1
PSTB2
PSTB1
PS
VCO2
R3V
BAR
R3V
OSC
VCO1
VCO2
VCO3
VCO4
OSC
+3V
WFM
FSET
NOISE
VHFC
800MC
GC
UHFC
PS
R3V
AFO
SPO
CLONE
TUNE
SHIFT3V
FSET
VCC
R SSI
DET
AGCC
WFM
HV
HV E
AFE
VP
PS
R3V
VCC
VCO3V
DET
AGCC
+3V
EAR
VCO3V
AM
AM
OSC
R SSI
+3V
TRAC
ATT
B1C
B2C
ANTSW
HFC
NOISE
R3V
AGC
1st_VCO_OUT
FM DET
AM DET
AM/NFM_CONT
2nd VCO UNIT
1st VCO UNIT
2nd_VCO_OUT
19.200MHz
IF AMP
1 st MIXER
2nd MIX
Reference frequency signal AMP
MODE CONT
1 st IF FILTER
2nd IF FILTER
3rd IF FILTER
Ref
EXT SP
EXT DC
RF_AMP
RX RF signals path while the earphone antenna is activated
AM MODE :0.0V
FM MODE :3.1V
WFM MODE:3.1V
RX:0.9V
500kHz:0.4V
AM ANTENNA
EXT-DX :0.0V
EXT-LOCAL:0.0V
BAR :3.1V
500kHz
AM ANTENNA
BAR :0.0 V
EXT-DX :3.1V
EXT-LOCAL:0.0V
500kHz
EXT-LOCAL:3.1V
AM ANTENNA
BAR :0.0V
EXT-DX :0.0V
500kHz
850MHz:0.8 V
145MHz:1.4V
ATT ON :3.1V
ATT OFF:0.0V
EARPHONE ANT ON :3.1V
EARPHONE ANT OFF:0.0V
600MHz:0.4V
435MHz:1.4V
200MHz:3.1V
145MHz:0.0V
• MAIN UNIT (Right side)
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...