Icom IC-7410 Service Manual page 92

• MAIN UNIT (MAIN-1)
3R3V 3R3V
CI-V
CIV
Q1001 3R3V
C1001
DMG504010
0.1
I C1001
1 8
2 7
3 6
R1001
4 5
CIVE
0
TC7WH04FU
Q1021 3R3V 5V
KRC402
AH-3/AH-4
START
R1021
KEY
1k
1k D1021 D1022
R1022
KDS122 KDS122
AT-180
3R3V 3R3V
I C1041
1
2
3
SN74AHC1G04DCK
I KEY#
ISTA
1k
THRI_
R1041
H3R3V 3R3V
R1061
PWRK_
1k
LTXD
LRXD
FRES
PTRAS
PSENI
MFMTL R1201 1k
VOXL R1203 1k
MP1XL
MP1YL
3R3V 3R3V
KDS122 KDS122
D1203 D1204
H3R3V
C1081
0.1
I C1081
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
VSS SDA
R1EX24064ATA00A
HV H3R3V
RESET
IC1101
1 5
R1102 OUT CD
2
VDD
3 4
22k VSS NC
S-80928CNMC
H3R3V
H3R3V
J1121
JPG4 PG4
10
JP53 P53
9
WDTOVF WDTOVF
8
D1121
7
JPG5 PG5
6
KDS4148U JPG6 PG6
5
RES
4
3
2
1
H3R3V
H3R3V
J1122
CP1121
1
FZRX_ FZRX FZRX P33
2
FZTX FZTX FZTX P31
3
FZRS CF20 FZRS
4
5
FZMD H8_MD2 H8_MD2 MD2
6
7
8
9
10
3R3V 3R3V
P45
CRXD/CBSY P24
CTXD P23
3R3V 3R3V
ESTA P16
EKEY P17
TCON P22
3R3V
0.1
H3R3V
C1041
5
R1219
4 I KEY P32
180
ISTA P30 RES
THRI P93
X1201
H3R3V
CR-755
PWRK P52
LTXD P50 H3R3V
LRXD P51
FRES PA0
PTRAS PF6
PSENI PF0
H3R3V
3R3V
109
CP1233
110
CP1201
111
112
MFMTL 113
47k R1223 114
115
VOXL
47k R1224 116
R1213 0 MP1XL 117
R1214 0 MP1YL 118
119
120
DX1M 121
47k R1225 122
123
THRI 124
IC1201
BEEP 125
126
STON HD64F2370VFQ34V
127
128
129
JPG4 130
JPG5 131
JPG6 132
LTXD 133
134
LRXD
PWRK 135
JP53 136
137
EDT
ECK 138
FZRX 139
I KEY 140
FZTX 141
ISTA 142
143
P34 144
P35
RES
0.1
3R3V
C1161
I C1161
REFL 1 16
Y0 VDD
2 15
MP1Y2 HTHML
Y2 X2
MP1YL 3 14 ALCL
Y X1
VDL 4 13 MP1XL P44 MP1Y2 R1168 1k
Y3 X
5 12
IDL FORL
Y1 X0
6 11 IPDL
INH X3
7 10 MPSA P60
VEE A
8 9 MPSB P61
VSS B
TC74HC4052AF
HTHML R1167 1k
MA2S7280G
D1173
FORL R1171 220
REFL R1172 220
ALCL R1173 1k
IDL R1174 1k
VDL R1175 1k
IPDL R1176 1k
R1187
270k
CP1202
2
CP1203 D1174
1
3
KDS4148U
I C1163
NJM4558M
R1183
0
6
D1175
7
5
KDS4148U
I C1163
NJM4558M
3R3V
72
71
70
69
68
67
CP1227
66
CP1228
65
CP1229
64
CP1230
63 3R3V
62
100k
61 R1232
60 100k R1233
59 UDRXD
CP1205
58
57 DSPR
56 DSPCK HRXS
55
CRXD/CBSY
54 CTXD
)
53 TCON
CP1209
52 MDAT
51 MCK TXS
50
49 EKEY MSQLS
48 ESTA
47
EXRLS ASQLS
46 SKYS
45 PST UMSQS
44
PSL
43 PDAT
42 PCK ANTS
C1217
41 HTXS
40
0.1
39 WDTOVF
CP1215
38 H8_CS7#
37 X3R3V
)
CP1207
ISET
MSTB
ASTB
X3R3V 5V
H3R3V 3R3V HV
CP1241 CP1242 CP1243 CP1244
H3R3V 3R3V X3R3V 5V HV
H3R3V
R1284
P80 VBUS
VBUS_
CP1166 47k
3R3V
HTHML_
P94 BEEP
BEEP
P95 STON
STON
PH1 UPWS
UPWS
PF7 SENI
SENI
PF1 TRAS
TRAS
P15 EXRLS
EXRLS
P14 SKYS R1288
SKYS_
PC5 RTKI 1k
RTKI
ALCL_
IDL_
VDL_
3R3V
I PDL_
8V
R1191
D1282
KDS122
100k
3R3V
R1180
REFL_
10
8
V+
GND I C1163
UMSQS
UMSQS
4 NJM4558M
MSQLS
R1186
MSQLS
ASQLS
100k ASQLS
R1184
FORL_
-12V
10
X3R3V
1 75
I /O2 GND
2 74
H8_RD# PF5
NC I /O4
3 73
I/O2/GTS1 NC
CP1218
4 72
I/O2/GTS2 I /O4
5 71 H8_CS7 # PH3
VCCINT I /O4
6 70 RSV0
I /O2 I /O4 CP1262
7 69
NC GND
8 68 H8_D8 PD0
I /O2 I /O4
9 67 H8_D9 PD1
I /O2 I /O4
10 66
H8_D10 PD2
I /O2 I /O4
11 65 H8_D11 PD3
I /O2 I /O3
12 64 H8_A0 PC0
I /O2 I /O4
13 63
H8_A1 PC1
I /O1 IC1261 I /O3
14 62
I /O1 GND
XC9572XL
15 61 H8_A2 PC2
I /O1 I /O3
16 60 H8_D12 PD4
I /O1 I /O3
17 59 H8_D13 PD5
I /O1 I /O3
18 58 H8_D14 PD6
I /O1 I /O3
19 57
NC VCCINT
20 56 H8_D15 PD7
I /O1 I /O3
21 55
I MRE3
GND I /O3
22 54 I MRE2
I/O1/GCK1 I /O3
23 53 I MRE1
I/O1/GCK2 I /O3
24 52
I MRE0
NC I /O3
25 51
I /O1 VCCIO
TCK
10 - 6
P20 MCK
MCK
P21 M DAT
M DAT
M STB
MSTB
ASTB
ASTB
RASTB
RASTB
CCSTB
CCSTB
CASTB
CASTB
PAASTB
PAASTB
PASTB
PASTB
MAIN-5
P40 MFMTL
MFMTL
P42 VOXL
VOXL
3R3V 3R3V
MAIN-3
D1332 D1334
KDS122 KDS122
DRESL
DRESL
DRESH
DRESH
DRES D
DRES D
3R3V
PA2 HIFOP1K
HIFOP1 K
PA3 HIFOP2K
HIFOP2 K
PH0 PWRS
PWRS
PF3 XPWS
XPWS
3R3V
TXS
TXS
HTXS
HTXS
HRXS
HRXS
MAIN-2
ANTS
ANTS
ISET
ISET
3R3V
PC6 UNLK
UNLK
P10 PCK
PCK
P11 PDAT
PDAT
P12 PSL
PSL
P13 PST
PST
FRWT
FRWT
P25 DSPCK
DSPCK
P26 DSPR
DSPR
P90 DX1M
DX1 M
DCSRM
DCSRM
DCSXM
DCSX M
P64 DSKY
DSKY
P62 NSQM
NSQM
P63
PB0 VSQM
VSQM
PB2 RTDM
RTDM
PC3 DAVOX
DAVOX
PC4 CTFL
CTFL
PB4 MHSK0
MHSK0
PB5 MHSK1
MHSK1
DULSM
DULSM
3R3V
P83 UDRXD
UDRXD
P81 UDTXD
UDTXD