J2
V2IF
C2
330p
C1
330p
L1
0.82u
R3
220
L9
LS-476
R385
82
R386
100
R387
82
C323
0.1
3
4
D9
MA862
1
2
R4
2.2k
C3
0.047
R5
330k
Q1
2SC4081
R7
2.2k
C6
0.047
C7
220p
C231
47p
C8 68p
L5
0.33uH
C9
220p
C309
47p
L40
0.33uH
L53
100uH
L6
100uH
C5
0.047
R6
1k
C4
0.001
L4
100uH
C10
0.047
J17
EXIF
R2
100
C338
0.1
L22
LS-476
C11
0.047
C12
0.047
R388
2.2k
R8
18k
R9
100k
R10
22
Q4
3SK131
R11
47k
C13
0.22
C14
0.047
R12
120
R504
5k
R15
100
C15
0.047
C18
0.047
L2
617PT-1026
C17
0.047
R373
2.2k
R16
2.2k
2
1
D1
MA862
4
3
R374
2.2k
C18
0.001
MIXV
Q3
DTA114EU
R26
470
C28
100
D54
RD10M
C27
0.1
C26
0.1
Q5
2SC3650
D8
MA862
3
4
2
1
L14
LS-479
C21
0.0047
R20
3.9k
C20
0.1
R21
1k
R502
NTCCF20123SH
152KCT
Q2
3SK131
C22
0.1
C23
0.0047
C25
470
C19
0.1
R18
2.2k
R19
100k
R23
100
R22
470
R24
100
L8
LS-476
J4
BFO
J3
3LO
R323
2.2k
C44
0.1
R67
2.2k
C46
0.1
L7
LS-476
FI2
SFECA
10.7MS-2A
R33
560
FI1
SFECA
10.7MS2-A
R79
3.9k
C57
0.1
R81
10k
R487
15k
R488
NCCF20123NH
153KCT
L3
617PT-1026
R80
100k
R102
22
Q15
3K131
C77
0.1
R101
120
Q14
2SC4081
R99
10k
C76
0.0047
R103
47k
R104
22k
L18
LS-476
C78
0.1
C47
0.1
1
2
3
4
D5
1SS272
C55
0.1
R73
2.2k
C54
0.1
R74
100
C53
0.1
R371
560
C313
0.1
R76
2.2k
R75
2.2k
3
2
1
4
C56
0.1
R375
10k
R78
10k
4
3
2
1
D6
MA862
R69
2.2k
R70
100
C48
0.1
C52
0.1
R71
2.2k
R72
2.2k
4
3
1
2
D7
MA862
R68
10k
R77
10k
C80
15p
CARI
BYPS
SIGI
GND
8
7
6
5
C79
0.1
C81
0.1
IC8
uPC1037GR
VCC
OUT1
OUT2
NC
1
2
3
4
R107
3.3k
L23
100uH
C83
0.001
C84
0.1
Q13
XP4311
4
5
6
3
2
1
1
D11
MA862
2
4
3
C325
0.1
R127
220
FI6
SFPC455E-TC01
1
2
R389
10k
1
FI7
SFPC455E-TC01
2
3
3
C312
0.1
W11
R131
4.7k
R132
47k
C92
0.1
R128
4.7k
C91
0.1
R129
100
R108
4.7k
D13
MA862
4
3
1
2
R133
4.7k
C324
0.1
R121
470
J28
OPTION
FL-52A
2
3
1
3
FI6
SFPC455H
2
C511
0.1
R113
4.7k
R114
47k
C86
0.1
C85
0.1
R111
100
R110
4.7k
1
FI5
SFPC455H
W10
R125
4.7k
R126
47k
C90
0.1
R122
4.7k
C89
0.1
R123
100
J29
J31
J30
C87
0.1
R117
100
R116
6.8k
R115
220
1
W9
R119
4.7k
2
4
3
5
FI4
FL-65
R120
47k
C88
0.1
C24
0.1
W12
C82
0.1
R376
100
D3
MA862
1
2
4
3
Q7
XP1213
C58
2p
R82
100k
Q9
2SK882
R83
4.7k
C60
0.0047
C59
0.1
L17
LS-480
C61
0.1
R384
180
IC5
uPC1658G
5
8
6
7
SETC
IN
BYPS
BYPS
VCC
OUT
SETE
GND
4
3
2
1
R87
180
C67
0.1
L47
5.6uH
R88
100k
C320
33p
C321
4p
R89
4.7k
C68
0.0047
L21 LS-476
C70
120p
4
2
1
3
D10
1SS375
C71
120p
CP2
R94
33k
C69
0.1
R90
100
Q12
2SC4081
C72
4.7
R92
5.6k
R93
3.3k
R372
470
Q58
XP4311
1
2
3
6
5
4
R95
470
C73
0.0047
R97
22
R98
10k
C75
0.1
C74
10
R96
100
R91
47k
C62
0.1
R85
5.6k
C65
3.3
C63
0.0047
L19
100uH
R84
10
Q10
XP4601
J7
GND
+24
F1
F2
F3
F4
MI5V
SW
F2M
F1M
+8
LVDA
AGC
-8
GND
13.8
-8
GND
J5
GND
NC
13.8
NC
+5
AGC
+8
OE
GND
STBA
Mdat
Mck
STBC
GND
GND
C360
470p
C358
470p
C357
22p
C370
470p
C157
0.001
C166
0.001
C169
0.001
L29
100uH
C165
0.001
L28
HF50ACC322513-B
C161
0.001
C162
0.001
C163
0.001
C371
470p
C359
470p
C369
470p
C172
0.001
F1
F2
F3
F4
SW
F2M
F1M
L30
100uH
L31
100uH
C186
0.001
C168
0.001
GND
+24
+8
OE
STBF
STBB
Mdat
Mck
+5
GND
J6
C361
22p
C362
22p
L32
100uH
C180
0.001
FILS
MI5V
GND
FILS
MI5V
GND
F1M
F2M
+8
GND
J8
C372
22p
C373
470p
L33
100uH
L34
HF50ACC322513-B
C189
0.001
Pck
Pdat
PDE
PSTB
R342 1k
R343
47k
C188
0.001
C187
0.001
C374
470p
C170
0.001
R191
33k
R193
15k
R192
NCCF20123FH
332KCT
R194
6.8k
R195
470k
+
-
3
2
1
5
4
R199
100
IC9a
NJM4558M
C142
10
D23 1SS355
R197
2.2M
R500
NTCCF20123SH
333KCT
C141
0.001
R196
1M
R509
1k
R361
22k
R362
NTCCF20123JH
47KCT
C331
10
R406
100
SMAD
+8
MIXV
AGC
13.8
C25
0.0047
FI3b
FL-75
C50
3p
FI3a
FL-75
C30
0.1
R34
330
C33
0.01
1
2
3
4
5
6
7
8
9
10
C32
0.0047
C31
4.7
IC2 MC3356DW
RFGND
OSCE
OSCC
RFVCC
MIXD
IFVCC
LMTIN
LMTB
LMTB
QDB
RFIN
GND
DOUT
COMP
COMP
SQLS
SQLC
DET
FIL
QUAD
11
12
13
14
15
16
17
18
19
20
C34
0.01
C326
0.01
X1
CDA10.7MC4-4
R35 1.2k
C37 5p
C36 0.01
L13
18uH
R40
18k
C40
470p
R41
18k
CP1
R403
10k
R37
3.9k
C39
0.022
C310
0.22
R38
3.3k
R49
22k
Q61
DTC144EU
R36
47k
C41
0.1
C38
0.01
R42
2.7k
R43
6.8k
R50
47k
R39
1.8k
Q5
2SC4081
R52
1k
C93
0.1
R134
47k
C94
0.1
R137
120
C95
0.0047
R136
100
Q16
3SK131
R135
470
C96
0.1
L10
LS-479
D17
1SS355
Q20
DTC144EU R393
22k
R176
10
D18
DAN222
C134
2.2
R179
470
Q23
2SA1586
R400
100k
R178
10k
C133
0.047
3
1
4
2
D14
MA862
R181
27k
R399
4.7k
/WFA
5
4
1
2
3
Q8
XP1114
D12
MA862
C354
0.1
R450
4.7k
2
1
3
4
D61
MA862
R451
4.7k
C355
0.1
C105
470p
R452
4.7K
C356
0.1
R201
100
R379
1k
C318
10
R382
100
C144
47
R380
150k
Q62
2SC4081
R381
100
C317
0.0047
C217
0.0047
R266
4.7k
R200
100k
3
2
+
-
1
IC10a
NJM2904V
R204
22k
C145
0.047
R205
100k
+
-
IC10b
NJM2904V
5
6
7
R203
220k
C143
0.0047
C328
2.2
C202
470
R207
220k
C147
0.0047
C146
2.2
C206
470
C148
0.01
R411
10k
R412
10k
5
6
4
IC11b
uPD4001BG
R208
15k
C149
0.01
Q28
2SJ144
R215
10k
1
2
3
IC11a
uPD4001BG
R209
15k
12
13
11
IC11d
uPD4001BG
14
C150
0.01
R210
10k
C151
10
C152
4.7
R211
470k
R212
100k
3
2
+
-
1
4
8
IC12a
NJM2904V
R214
100k
R213
10k
C154
0.47
C153
1
R216
4.7k
D26
DAN222
R217
18k
R218
470
C155
100
R221
4.7k
R220
22k
R219
470
R222
47k
+
-
5
6
7
IC12b
NJM2904V
D27
1SS355
R227
1k
R228
1.2M
C157
2.2
R226
470
R224
68k
R225
330k
4
3
1
2
D25
1SS272
8
9
10
R229
100k
IC11c
uPD4001BG
Q30
DTC144EU
Q29
XP1213
5
4
1
2
3
Q11
2SK882
PSTB
PDE
Pdat
Pck
LCT1
FILS
MI5V
SW
F4
F3
F2
F1
STBB
Mdat
Mck
STBB
Mdat
Mck
STBC
Mck
Mdat
STBA
STBA
Mdat
Mck
STBC
OE
OE
R390
47k
R391
18k
5
6
7
+
-
IC32b
NJM2904V
R370
100k
R190
100
LIAD
J1
HFIF
IF
OUT
R17
2.2k
2
1
D2
MA862
4
3
VSC
+5
GND
Pck
Pdat
POE
PSTB
LCT
+24
J9
SSB8
AM8
NRS1
NRS2
FILP
FIL1
FIL2
FIL3
FILC
(a)
(b)
SMAD
LVDA
FROM RF-C
UNIT J5
FROM MIX
UNIT J4
FROM PLL
UNIT J4
FROM PLL
UNIT J6
FROM RF-C
UNIT J4
C164
0.001
FROM CONV
UNIT J1
FROM RF-D
UNIT J3
FROM MIX
UNIT J1
FROM PLL
UNIT J1
MAIN UNIT
3
1
2
6
5
4
C66
0.1
C319
10
R106
100
R515
1
R14
10k
L20
100uH
R230
47k
DE
STBE
13.8
MTXD
MRXD
GND
GND
L+5
GND
J10
C380
0.47
L37
HF50ACC322513-B
R476 1k
R475 1k
C191
0.1
3
2
4
1
D48
DAN222
D47
1SS272
R349
47k
C364
47p
C363
47p
R350
47k
MTXD
MRXD
FROM DISP
UNIT J7
MEASUREMENT CONDITION
DIGITAL MULTIMETER:50ku/V DC
WAVEFORM:OSCILLOSCCOPE(20MHz)
DISPLAYED FREQUENCY:145MHz
MODE:FM
7.47V
2.36V
2.77V
3.3V
6.91V
0.46V
1.14V
6.94V
4.79V
NB
ON :0.53V
OFF:7.59V
2.2V
6.93V
7.58V
2.35V
5.97V
4.15V
1.14V
6.94V
5.23V
4.18V
6.01V
5.27V
3.53V
4.3V
6.86V
3.94V
6.1V
1.17V
1.19V
9.87V
13.55V
2.35V
3.55V
4.32V
3.52V
4.30V
WFM 4.31V
WFM 1.12V
6.34V
2.36V
WFM 1.34V
WFM 7.55V
4.90V
WFM
1.68V
2.35V
6.89V
CW-N:4.08V
1.13V
CW-N:4.12V
SSB
CW
AM-N
4.12V
SSB
CW
AM-N
3.49V
1.13V
AM,
FM-N
4.05V
AM
FM-N
4.10V
AM-W
FM
4.08V
3.37V
AM-W
FM
4.08V
2.34V
4.91V
3.18V
(Below 30MHz)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
q
w
e
r
t
y
u
i
o
!0
!1
!2
!3
!4
!5
!6
!7
!8
!9
@0
@1
@2
@3
@4
@5
@6
@7
@8
@9
#0
#1
#2
#3
#4
#5
#6
#7
#8
#9
$0
$1
$2
$3
$4
11 - 6
MAIN-A UNIT
R8500 A3.indd 21-22
12/1/2006 8:54:39 AM
Summary of Contents for iC- r8500
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS REPLACEMENT PAGE 5 3 PARTS LIST 1 VOLTAGE DIAGRAM 21 Jun 2011...
Page 24: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 21 VOLTAGE DIAGRAM 23 Apr 2011...
Page 52: ...Replacement page Jan 2011 5 6 MAIN A UNIT CP2 Noise blanker check point...
Page 79: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 21 VOLTAGE DIAGRAM 23 Sep 2010...
Page 147: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 20 VOLTAGE DIAGRAM 22 Feb 2009...
Page 177: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 20 VOLTAGE DIAGRAM 28 Jul 2008...
Page 213: ...S 14318XZ C1 Nov 2006 COMMUNICATIONS RECEIVER...
Page 221: ...4 2 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 222: ...4 3 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 223: ...4 4 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 224: ...4 5 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 225: ...4 6 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 226: ...4 7 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 227: ...4 8 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 228: ...4 9 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 229: ...4 10 UNIT NAME MAIN MAIN A RF A RF C RF B RF D MIX MIX A CONV CONV B PLL PLL B...
Page 230: ...5 1 SECTION 5 ADJUSTMENT PROCEDURE MAIN A PLL B PLL B MAIN A...
Page 231: ...5 2 PLL B MAIN A...
Page 233: ...5 4 MAIN A MIX A AND RF C UNITS CONBV B AND RF C UNITS...
Page 234: ...5 5 MAIN A MAIN A MAIN A MAIN A MAIN A MAIN A MAIN A...
Page 235: ...5 6 MAIN A UNIT...
Page 236: ...5 7 RF C BPF TUNED VOLTAGE ADJUSTMENT RF C BPF...
Page 237: ...5 8 RF C BPF TUNED VOLTAGE ADJUSTMENT continued RF C BPF...
Page 238: ...5 9 RF C BPF...
Page 239: ...5 10...
Page 261: ...7 2...
Page 262: ...7 3...
Page 265: ...SECTION 8 SEMICONDUCTOR INFRMATION 8 1...
Page 266: ...8 2...
Page 286: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14318XZ C1 2006 Icom Inc...