![background image](http://html.mh-extra.com/html/icom/ic-718/ic-718_service-manual-addendum_612206100.webp)
Jul. 2009
19
VR BOARD
RIT
SHIFT
R1 10k-B
SQL/RF
AF
R2 10k-B
R4
6.8k
GND
GND
GND
GND
GND
SFTL
5VL
RITL
RFGL
AFGL
J1
UD
8V
MIC
MICE
GND
SEND
AFO
SQLS
GND
GND
10
9
8
7
6
5
4
3
2
1
J2
1
8
7
6
4
3
2
5
MIC BOARD
PHONE BOARD
J2
GND
AFE
AFE
AFE
ESPO
ESPO
ESPO
AFO
AFO
AFO
L1
HF50ACC322513-B
R1 100
R2 100
C3
0.0047
C1
0.0047
0.0047
C2
R3
1k
1
2
3
4
7
8
J1
PHONES
DAN202K
MIC
MICE
GND
AFO
SEND
SQLS
UD
8V
AFO
AFO
ESPO
ESPO
ESPO
AFE
AFE
AFE
GND
GND
GND
L1
Q104
DTC114EU
P75
C4
0.1
POWER
GND
GND
GND
GND
GND
SFTL
5VL
RITL
RFGL
AFGL
AFO
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
LCD
DS70
TLYU1002
DS71
TLYU1002
DS72
TLYU1002
DS73
TLYU1002
DS74
TLYU1002
DS75
TLYU1002
DS1
A0087
VEE
31
Y50
81
Y31
100
NC
50
V1
32
V2
33
V3
34
V4
35
GND
36
CL1
37
NC
38
SHL
39
CL2
40
DI
41
DO
42
NC
43
M
44
NC
45
VCC
46
NC
47
NC
48
NC
49
Y49
82
Y48
83
Y47
84
Y46
85
Y45
86
Y44
87
Y43
88
Y42
89
Y41
90
Y40
91
Y39
92
Y38
93
Y37
94
Y36
95
Y35
96
Y34
97
Y33
98
Y32
99
IC7
HD66100F
S39
S38
S37
S36
C20
0.1
C19
10
L2
10H
P94
P95
P96
P97
R196
47k
R197
2.2k
R199
820
R198
2.2k
D1
Q2
2SC4081
R201
1k
P43
R17
100k
R16
100k
R15
100k
R14
100k
R195
47k
Q1
DTC114EU
P94
P95
P96
P97
V1
V2
V3
PB3
PB2
PB1
PB0
PB5
PC2
PC1
PC0
PB7
PB6
PB4
P43
S1
S2
S10
S11
S3
S4
S5
S6
S7
S8
S9
8V
C46
0.0047
C45
0.0047
C44
0.0047
C43
0.0047
R59
10k
L41
100H
L42
100H
MIC
PB0
EP40
EP2
PB1
PB2
PB3
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
J4
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
J5
R63
2.2k
L43
HF50ACC322513-B
EP45
MMZ1608Y102BT
EP46
MMZ1608Y102BT
L47
HF50ACC322513-B
L48
HF50ACC322513-B
L49
HF50ACC322513-B
D47
1SS355
L44 100H
C47
0.0047
MICE
PHO
P43
C1
15p
C2
15p
X1 CR-567
9.8304 MHz
5V
PHO
8V
PHOE
SPE
P16
PC3/AN11
1
P97/SEG40/CL1
75
AVSS
2
TEST
3
X2
4
X1
5
VSS
6
OSC1
7
8
RES
9
MD0
10
P20/IRQ4/ADTRG
11
P21/UD
12
P22
13
P23
14
P24
15
P25
16
P26
17
P27
18
P30/SCK1
19
P31/SI1
20
P32/SO1
21
P33/SCK2
22
P34/SI2
23
P35/SO2
24
P36/STRB
25
P67/SEG16
51
P70/SEG17
52
P71/SEG18
53
P72/SEG19
54
P73/SEG20
55
P74/SEG21
56
P75/SEG22
57
P76/SEG23
58
P77/SEG24
59
P80/SEG25
60
P81/SEG26
61
P82/SEG27
62
P83/SEG28
63
P84/SEG29
64
P85/SEG30
65
P86/SEG31
66
P87/SEG32
67
P90/SEG33
68
P91/SEG34
69
P92/SEG35
70
P93/SEG36
71
P94/SEG37/M
72
P95/SEG38/D0
73
P96/SEG39/CL2
74
IC1
HD6433837SD17H
R1
1M
R30
47k
R2
22k
R7 22k
C22
0.1
P42
P41
P17
C5
10
C21
0.1
P14
P13
P12
P11
P10
P97
P96
P95
P94
P93
P92
P90
P87
P40
H5V
CS
1
SO
2
WP
3
VSS
4
SI
5
SCK
6
HOLD
7
VCC
8
IC2
X25320SI
R9
10k
R24
47k
R25
47k
R26
47k
R27
47k
Q103
DTC114 EU
SQLS
P86
P85
P84
P75
P71
P70
P76
P67
P74
P73
P72
C6 0.1
P37
P50
P51
P52
P53
P54
P55
P56
P60
P61
P62
P63
P64
P65
P66
P36
P35
P34
P33
P32
P30
P27
P26
P25
P24
P21
P20
P22
P23
R35
47k
R31
47k
R32
47k
R36
47k
R8
10k
R34
47k
Q3
DTA114EU
P60
MODE
FIL
TS
R43
47k
D30
DAN202K
D32
1SS355
D44
1SS355
D45
DAN202k
D31
DAN202K
D33
DAN202K
P54
P50
P52
P51
P67
D34
1SS355
D36
1SS355
D48
*
OTH2, OTH3
*SET-ON
OTH2, OTH3
OTH, OTH3
D49
*
D51
*
D48
D49
D51
D35
DAN202K
D37
DAN202K
P60
P61
D50
P62
P63
R37
47k
R38
47k
P61
P62
V1
V2
V3
COM1
COM2
COM4
COM3
R5
10k
R4
10k
R3
10k
W1
C7
1
C8
0.1
C9
0.01
OUT
1
VDD
2
VSS
3
NC
4
CD
5
IC3
S-80942ANMP
R22
1k
R39
47k
R40
47k
R20
47k
R21
39k
P63
P64
P65
D38
1SS355
D40
1SS355
D53
1SS355
1SS355
1SS355
1SS355
D54
1SS355
D55
1SS355
D39
DAN202K
D41
DAN202K
P65
P66
P67
D42
1SS355
D43
DAN202k
W101
W102
R41
47k
R42
47k
P66
P16/IRQ2/TMIC
P15/IRQ1/TMIB
P17/IRQ3/TMIF
P40/SCK3
P41/RXD
P42/TXD
P43/IRQ0
AV
C
C
PB0/AN0
PB1/AN1
PB2/AN2
PB3/AN3
PB4/AN4
PB5/AN5
PB6/AN6
PB7/AN7
PC0/AN8
PC1/AN9
PC2/AN10
P14/PWM
P13/TMIG
P12/TMOFH
P11/TMOFL
P10/TMO
W
VCC
P57/WKP7/SEG8
P60/SEG9
P56/WKP6/SEG7
PP55/WKP5/SEG6
P54/WKP4/SEG5
P53/WKP3/SEG4
P52/WKP2/SEG3
P51/WKP1/SEG2
P50/WKP0/SEG1
P
A0/COM1
P
A1/COM2
P
A2/COM3
P
A3/COM4
VCC
V1
V2
V3
VSS
P37/CS
P61/SEG10
P62/SEG11
P63/SEG12
P64/SEG13
P65/SEG14
P66/SEG15
R62
2.2k
PB5
P30
P32
R173
220
R171
220
R172
220
R174
220
R175
220
R176
220
R177
220
R212
220
R193
220
P34
P33
P24
P23
P27
P25
P26
P50
P52
P51
P50
P52
P51
P50
P52
P51
P52
P51
P50
P52
P51
P50
P52
P51
P50
P52
P51
P53
P50
P52
P51
P54
P53
Y51
Y70
Y52
Y53
Y54
Y55
Y56
Y57
Y58
Y59
Y60
Y61
Y62
Y63
Y64
Y65
Y66
Y67
Y68
Y69
Y71
Y72
Y73
Y74
Y75
Y76
Y77
Y78
Y79
Y80
Y12
Y30
Y29
Y28
Y27
Y26
Y25
Y24
Y23
Y22
Y21
Y20
Y19
Y18
Y17
Y16
Y15
Y14
Y13
Y11
Y10
Y9
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
S16
S17
S12
S13
S14
S15
S21
S22
S18
S35
S19
S20
S27
S28
S23
S24
S25
S26
S29
S30
S31
S32
S33
S34
20
1
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
30
29
24
28
27
26
25
23
22
21
S44
S45
S40
S41
S42
S43
S50
S51
S46
S47
S48
S49
S55
S56
S52
S69
S53
S54
S61
S62
S57
S58
S59
S60
S63
S64
S65
S66
S67
S68
S10
S11
S6
S7
S8
S9
S16
S17
S12
S13
S14
S15
S21
S22
S18
S35
S19
S20
S27
S28
S23
S24
S25
S26
S29
S30
S31
S32
S33
S34
S5
S1
S2
S3
S4
20
1
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
30
29
28
27
26
25
24
23
22
21
31
35
34
33
32
S44
S45
S40
S41
S42
S43
S50
S51
S46
S47
S48
S49
S55
S56
S52
S69
S53
S54
S61
S62
S57
S58
S59
S60
S63
S64
S65
S66
S67
S68
S36
S37
S38
S39
55
36
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
65
64
63
62
61
60
59
58
57
56
66
70
69
68
67
73
72
71
COM1
COM2
COM3
COM4
SEG44
SEG45
SEG40
SEG41
SEG42
SEG43
SEG50
SEG51
SEG46
SEG47
SEG48
SEG49
SEG55
SEG56
SEG52
SEG69
SEG53
SEG54
SEG61
SEG62
SEG57
SEG58
SEG59
SEG60
SEG63
SEG64
SEG65
SEG66
SEG67
SEG68
SEG36
SEG37
SEG38
SEG39
COM0
COM1
COM2
COM3
SEG10
SEG11
SEG6
SEG7
SEG8
SEG9
SEG16
SEG17
SEG12
SEG13
SEG14
SEG15
SEG21
SEG22
SEG18
SEG35
SEG19
SEG20
SEG27
SEG28
SEG23
SEG24
SEG25
SEG26
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG5
SEG1
SEG2
SEG4
SEG3
61
80
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
51
52
57
53
54
55
56
58
59
60
R71
560
R74
1k
Q71
DTC114 EU
Q72
DTC114 EU
R70
330
R75
56
Q70
2SD1619 T
R72
820
R73
6.8k
P55
P56
TLYU1002
TLYU1002
TLYU1002
DS82
TLYU1002
DS83
TLYU1002
DS84
TLYU1002
DS85
TLYU1002
DS86
TLYU1002
DS87
TLYU1002
DS88
TLYU1002
DS89
TLYU1002
DS90
TLYU1002
W70
DS76
TLYU1002
DS77
TLYU1002
DS78
TLYU1002
DS79
DS80
DS81
C102
0.001
R100
100k
L100
100H
P42
P41
R104
6.8k
R105 33k
R101
100k
5
3
IC103C
TC7W04F
6
5
4
3 2 1
Q102
XP4601
D102
1SS355
CIV
CIVE
R106
47k
R103
18k
2
6
IC103B
TC7W04F
7
1
8
4
IC103A
TC7W04F
R19
22
C15
0.1
C101
0.1
R102
100k
R107
22k
C103
0.47
P17
R11
100k
R12
100k
R13
100k
R10
100k
H5V
HV
5V
5V
8V
C18
0.1
O
I
G
O
I
G
C17
10
C16
10
IC6
TA7805F
R18
47
C14
0.1
C13
10
C11
0.1
IC5
TA78L05F
C12
10
C3
0.01
LOGIC UNIT
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PC3
FSKK
DNB
13V
FSKK
DNB
13V
8V
SRST
FSKK
CON0
CON1
CON2
PDAT
PCK
DSTB
PSTB
DNB
13V
13V
13V
GND
8V
NC
10
11
12
13
14
15
16
3
4
1
2
5
6
7
8
9
J9
STRT
5V
8V
8V
HV
14V
14V
FSKK
MICE
to
MAIN
unit
J4401
to
MAIN
unit
J4201
MIC
SEND
SNDS
J6
30FLT-SM2-TB(LF)(SN)(M)
30FLT-SM2-TB(LF)(SN)(M)
SQLS
SEND
SPS
PHOE
PHOE
PHO
PHO
CIVE
CIV
ALMS
KEY
GND
GND
GND
GND
GND
DOTK
DASK
VOXL
AVXL
SML
ALML
REFL
FORL
PATL
SEND
SEND
NC
BEEP
DNB
RXS
TXS
KDS
DSPS
DSST
SSTB
DINT
DRES
ASTB
MSTB
FSTB
BSTB
MCK
MDAT
POWS
GND
GND
SBSY
10H
Q106
DTA114EU
R108
330
8V
P74
MICE
MIC
P43
L101
HF50ACC322513-B
L102
HF50ACC322513-B
L103
HF50ACC322513-B
L104
HF50ACC322513-B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
R126
220
R127
220
R128
220
R129
220
R130
220
R133
220
R166
220
R186
220
R134
220
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
J7
R169
220
CIV
CIVE
R111
47k
R112
47k
D122
DA221
D123
DA221
R190
1k
R191
1k
R118
47k
R115
47k
R179
47k
R119
47k
R185
47k
R114
22k
R113
R116
10k
R117
10k
R131
1k
R132
1k
R180
47k
R182
47k
P93
P92
PC3
PC2
PC1
PB7
PB6
PC0
SQLS
PHOE
PHO
P70
P71
P76
PB4
R135
R136
P12
P10
P84
P13
P86
P87
P27
P90
P85
P40
P37
P36
P35
P72
P73
P11
P14
R141
R142
R143
R144
R145
R146
R147
R148
R149
R165
10k
R137
R138
R139
R211
R150
220
R151
220
R153
220
R154
220
R156
220
R158
220
R160
220
R161
220
R162
220
R163
220
R164
220
D120
DA221
D124
DA221
Q105
DTC114EU
D121
DA221
R188
4.7k
EP157
EP155
EP159
EP152
22k
P50
R33
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
LOCK
ENT
TUNER
NB COMP
P.AMP
ATT
SET
DN
CH
UP
1
2
3
4
5
6
7
8
9
0
+5V
SENSOR
SEN1
SEN2
GND
R47
100k
R48
1M
100k
L40 100H
C42
0.0047
1
2
7
8
4
IC40A
TC7W32F
P16
R45
100k
R46
220k
C40
100p
R44
10
1
2
3
4
J1
1
2
3
4
S1
EP1
R50
100k
R51
220k
C41
100p
1
3
4
5
D46
NNCD6.2G
R52
100k
R53 1M
R54
100k
R55
47k
R56
47k
5
6
3
IC40B
TC7W32F
P21
P20
P22
R49
2
4.8V
Hi : 8.1V
Lo : 11.0V
OFF: 13.0V
Hi : 6.0V
Lo : 5.6V
OFF: 4.4V
Hi : 6.6V
Lo : 6.3V
OFF: 4.9V
4.9V
0
0.1S
1.8
3.6
V
V
0V
0V
5.0V
13.8V
When turn power ON.
4.8V
100 mS
5.0V
0.1V
12.5V
12.6V
*; Refer to “PARTS LIST.”
Summary of Contents for IC-718
Page 29: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 19 VOLTAGE DIAGRAM 25 Jun 2011 ...
Page 49: ...Jun 2011 20 C16 CP1 PLL UNIT BOTTOM VIEW FILTER UNIT BOTTOM VIEW PA UNIT BOTTOM VIEW ...
Page 81: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 16 VOLTAGE DIAGRAM 18 Jul 2009 ...
Page 196: ...9 4 VARISTOR BOARD BOTTOM VIEW PLL UNIT BOTTOM VIEW PA UNIT ...
Page 200: ...9 8 BOTTOM VIEW FILTER UNIT ...
Page 206: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13701MZ C1 q 2000 Icom Inc ...