Icom IC-7410 Service Manual

10 - 1
SECTION 10
.
VOLTAGE DIAGRAM
• DISPLAY BOARD (DISPLAY BOARD-1)
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

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



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




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.'8'.
8






.%&%1064#56
.'8'.
8






J31
1
2
3
4
5
6
7
8
9
10
J21
1
2
3
4
5
6
7
8
9
10
NOT L
NBL
PBT2BK
PBT1BK
PBT2AK
PBT1AK
NRL
PITCHL
RITDAK
RITDBK
10KR185 10KR186 10KR187 10KR188
47K
R190
47K
R191
82KR196
82K
R197
KTC4075
Q111
2SB1201
Q112
10
C113
12
R112
D 10F-#A814AY
L112
3.3K
R116
3.3K
R117
2SC3647
Q113
2SC3647
Q114
J111
1
2
3
4
100UL21
100UL22
100UL23
J101
1
2
3
4
56
NJM4558M
IC151
V+
8
GND
4
820K
R165
NJM4558M
IC151
6
5
7
470
R175
470
R174
56K
R172
56K
R173
2.2M
R166
10K
R156
10K
R157
NJM4558M
IC151
2
3
1
820K
R167
220K
R155
NJM4558M
IC152
V+
8
GND
4
BKLV
CONT1V
CONT2V
DCONT
SCONT
100U
L31
100U
L32
100U
L25
MMZ1608Y102BT
EP22
220
R31
J71
1
1
2
2
3
3
4
4
5
5
6
6
J91
1
1
2
2
3
3
4
4
5
5
6
6
MMZ1608Y102BT EP2
MMZ1608Y102BT EP3
MMZ1608Y102BT EP4
MMZ1608Y102BT EP5
10KR195
PHNK
M
IGL
RFPL
AFL
RFL
DSHK
DOTK
MUDL
MMZ1608Y102BT
EP7
MMZ1608Y102BT
EP6
LRXD
PWR K
LTXD_
3R3V
FRES
220R3
220R6
MMZ1608Y102BT EP10
MMZ1608Y102BT EP11
NJM4558M
IC152
6
5
7
NJM4558M
IC152
2
3
1
100K
R21
2.2K
R22
0.001
C21
CF20CP21
RDS
CD54NP
L111
0.047
C115
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1KR4
1KR5
47 CE-FS
C114
J51
1
1
2
2
3
3
4
4
5
5
6
6
7
8
9
10
2SD1619
Q501
KTC4075
Q502
KDS4148U
D501
220R7
220R8
4.7K
R51
4.7K
R56
33K
R52
15K
R53
10K
R54
150
R55
0.01
C51
0.01
C52
KRA302E
Q503
J61
1
1
2
2
3
3
4
4
5
5
6
6
J81
1
1
2
2
3
3
4
4
5
5
6
6
100
R141
100
R142
100
R143
100
R144
10
C141
10
C142
10
C143
10
C144
M
PZ1608S601A
EP1
220
R115
MAZ8030GH
D111
SN74AHCT1G86DCK
IC111
1
2
3
4
5
47k
R118
0.1
C1117
12P
C116
6373-T170
T113
1
2
3
6
7
4
5
3183 CFL CASE
MP111
1 2 3 4
10k
R113
0.1
C117
10
C111
0
R32
10U
L24
820k
R170
820k
R171
1.5M
R162
1.5M
R163
0.1
C151
0.1
C152
1.5M
R168
1.5M
R169
2.2M
R164
220k
R154
15k
R151
39k
R150
12k
R158
47k
R159
0.1
C22
0 R23
M AINDBK
M AINDAK
14V
M IGL
RFPL
AFL
RFL
PBT2AK
PBT2BK
PBT1AK
PBT1BK
PITCHL
RITDAK
RITDBK
NRL
NBL
PBT1AK
PBT1BK
PBT2AK
PBT2BK
NOTL
PITCHL
RITDAK
RITDBK
SCONT
DCONT
DCONT
CONT2V
SCONT
CONT1V
BKLV
DSHK
DOTK
PHNK
MUDL
PHNK
DSHK
DOTK
M IGL
RFPL
AFL
RFL
M ICE
PHEM
FRES
LRXD
PWRK
LTXD_
RDS
RDS
CONT2V
MSEND
MICI
PHOM
NRL
CONT1V
NBL
NOTL
3R3V
3R3V
3R3V
3R3V
3R3V
3R3V
8V
-12V
BKLV
5V
5V
5V
MAINDBK_
MAINDAK_
MAINDAK_
MAINDBK_
PHOM
PHOM
PHNK
PHEM
PHEM
PHEM
SQLS
GND
MUDK
GND
8V
PSND
MICI
AFO
GND
M ICE
CFL-
CFL+
(CFL)
MAIN DIAL
(EX-2500)
MAINDBK
5V
M AINDAK
14V
TO MAIN
FRES
5V
-12V
3R3V
LTXD
PWRK
14V
8V
LRXD
PSENI
PTRAS
MPHNE
MPHN
MICI_
MICE_
3R3V
0.01
C1
0.01
C3
0.01
C2
MMZ1608Y102BT x6
EP11
EP2
EP3
EP4
EP5
MMZ1608D301B
EP9
MMZ1608D301B
EP10
47P
C8
J2
1
2
3
4
5
6
7
8
9
10
MPZ2012S601A
EP12
EP6
EP7
1
2
3
45
6
7
8
J1
1
2
3
4
5
6
7
8
0.01
C6
0.01
C5
100P
C4
0.01
C7
PSEND
MUDL
SQLS
MICE
GND
MICI
8V
AFO
MIC BOARD
JACK BOARD
PBT BOARD
VR-C BOARD
RIT BOARD
VR-B BOARD
VR-A BOARD
P.T.T
+8V
MIC U/D
GND
GND
SQL
MIC
AF OUT
0.01
C101
0.01
C102
MMZ1608Y102BT
EP101
0.01
C2
MMZ1608Y102BT
EP102
0.01
C1
180
R1
180
R2
MPZ1608S221A
EP1
MPZ1608S221A
EP2
MPZ1608S221A
EP3
J1
1
2
3
4
5
6
7
8
9
10
11 12
J102
J2
MMZ1608Y102BT
EP4
MMZ1608Y102BT
EP5
MMZ1608Y102BT
EP6
DOTK
PHNK
GND
GND
GND
DSHK
PHOS
PHEM
PHOM
PHONE-J
DISPLAY-2
DISPLAY-2
ELEC-KEY-J
PHE
PHES
0.01
C4
0.01
C3
4.7K
R4
4.7K
R5
RV-314
R1
0.01
C5
RV-314
R6
4.7K
R7
4.7K
R8
0.01
C6
J2
1
2
3
4
5
6
7
8
9
10
M AFL
MRFL
3R3V
SAFL
SRFL
GND
GND
GND
GND
MIC GAIN RF PWR
(INSIDE)/(OUTSIDE)
AF RF/SQL VR
(INSIDE)/(OUTSIDE)
4.7K
R2
4.7K
R3
J2
1
1
2
2
3
3
4
4
5
5
6
6
0.01
C3
0.01
C2
RV-324
R1
11
22
3
3
4
4
5
5
6
6
NBL
GND2
NRL
3R3V1
GND1
3R3V2
(INSIDE)/(OUTSIDE)
NR NB VR
TP90D96E20
S1
1
COM
2
A
3
B
4
COM
5
A
6
B
J1
1
2
3
4
5
6
PBT2AK
PBT2BK
PBT1AK
PBT1BK
TWIN PBT
(INSIDE)/(OUTSIDE)
EVEGC2F2524B
S1
1
COM
2
A
3
B
J1
1
2
3
4
5
6
RITDAK
RITDBK
3R3V
RIT
4.7K
R3
4.7K
R2
J1
1
2
3
4
5
6
0.01
C3
0.01
C2
RV-324
R1
GND2
PITCH
L
3R3V1
GND1
NOTL
3R3V2
NOTCH CW PITCH VR
(INSIDE)/(OUTSIDE)

Icom IC-7410 Specifications

General

Brand	Icom
Model	IC-7410
Category	Transceiver
Language	English