Icom IC-RX7, Service Manual Addendum

Page: 14 / 64

Feb. 2010
13
*; 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
27P
C456
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
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
UNR9213G0
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
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
MA2S7280G
D50
470P
C266
10
C306
0.001 C206
3.3U
L43
*R15 0
22P C244 0.001 C279
UNR9213G0
Q40
0.01 C194
3.3K
R138
0.001
C284
0.001 C139
0.001
C223
0.01
C269
R168 10K
0.001 C188
JTBM450CX24
X3
6.8N
L22
R154 4.7K
UNR9115G0
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
MA2S7280G
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
1K 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
MA2S7280G
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
UNR9213G0
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
3.3U
L65
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
470P
C403
C293
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
• MAIN UNIT (Right side)