Icom IC-910H, Service Manual

Page: 135 / 144

12 - 1
12-1 FRONT UNIT
SECTION 12 VOLTAGE DIAGRAMS
[POWER]
J14
from MAIN
unit J1251,
J1201
to MAIN
unit J1101
to MAIN
unit J1151
7
6
5
4
3
2
1
HV
14V
MIC
MICE
MSPO
PHG
SSPO
PHG1
HF50ACC322513-B
L3
PHIN
GND
SSPO
MSPO
GND
MIC
MICE
+9V
MIUD2
GND
AFO
PTT
MSQLS
GND
J6
10
9
8
7
6
5
4
3
2
1
0.001
C25
EP4
HF50ACC322513-B L5
EP1
HF50ACC322513-B
L2
2.2k
R60
100k
R59
MIC
MICE
MSPO
PHG
0.001
C34
0.001
C33
0.001
C32
0.001
C31
0.001
C30
0.001
C29
0.001
C27
EP3
EP2
HF50ACC322513-B
DISPLAY BOARD
L4
DAP202K
D14
47k
R61
MIUD1
MITX
43PV1 14PV1
SEND2 SEND1
AGRS1
AGRM1
POWS1
DASH1
DOT1
ACUD
+9V
PTT
0.1
C94
1k
R66
1SS355
D15
2SC4116
Q16
47k
R69
820
R68
2.2k
R67
STLE
SRLE
MTLE
0.1
C36
1k
R71
1SS355
D16
2SC4116
Q17
820
R73
2.2k
R72
47k
R70
H5V
DTC114TU
Q21
DTC114TU
Q20
DTC114TU
Q19
10
C50
0.1
C49
AN78L05M
IC11
DRES1
MSC1
MDAT1
MCK1
FAN3
STL
SRL
MTL
MRL
FAN2
FAN1
FRST
47k
R185
EP5
10
C47
0.1
C48
120
R88
120 R87
BU4094BCFV
IC10
15
OENA
16
VDD
14
Q5
13
Q6
12
Q7
11
Q8
10
Q'S
9
QS
8
VSS
7
Q4
6
Q3
5
Q2
4
Q1
3
CLK
2
DATA
1
STRB
PCK1
PDAT1
OPB11
12PS1
ALCL1
12DS1
43PV1
12UL1
14PV1
12ST1
POWS1
12PV1
TEMP1
FORL1
220 R167
220 R172
18k
R176
18k
R140
100k
R173
100k
R175
100k
R174
RB706F-40
D31
1SS385
D10
220 R170
220 R166
220 R171
220 R169
220 R168
220 R165
1 R158
220 R156
PCK
PDAT
GND
TEMP
12PV
POWS
12ST
14PV
12UL
43PV
12DS
ALCL
12PS
FORL
OPB1
220 R181
220 R164
220 R163
+5V
VOXL
AVXL
ETON
+9V
MDAT
MCK
SCON
RXS
TXS
INTM
INTS
GND
0.001
C75
J7
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HF50ACC322513-B L8
100k
R112
220 R128
220 R127
INTS1
INTM1
TXS1
220 R151
RXS1
SCON1
MDAT1
MCK1
ETON1
AVXL1
VOXL1
18k
R150
18k
R117
220 R184
0.001
C74
100k
R111
0.47 C57
100k R19
220 R182
220 R157
220 R154
220 R153
220 R152
220
R110
220
R109
COM1 COM2 COM3 COM4 SG73
HF50ACC322513-B
L7
10k
+9V
5V
5V
R80
1.2k
R83
10k
R81
10k
R82
0.1
C46
DTC114TU
Q18
0.1
C42
0.1
C41
MRLE
MPSB
MPSA
TST0
0.1
C549
0.1
C548
0.1
C547
0.1
C541
0.1
C542
0.1
C538
0.1
C536
PHIN1
RXD
TXD
PTXS ATXS1 SQLS1 SQLM1 PDAT1 43PV1 PCK1 14PV1 DRES1 PTT11 AGRS1 AGRM1 INTS1 INTM1 POWS1 DASH1 DOT1
CIVE
CIV
SSPO
W2
0.1
C23
2SC4116
Q13
2SA1586
Q12
1SS355
D13
18k
R58
47k
R57
33k
R56
6.8k R55
47k
R54
TC7W04F
IC9C
3 5
TC7W04F
IC9B
6 2
TC7W04F
IC9A
4
8
1 7
J5
6
5
4
3
2
1
HF50ACC322513-B
L1
0.001
C24
2.2k
R53
1k
R52
100k
R51
+5V
A
B
0.001
C19
220k
R48
100k
R47
220k
R44
100k
R43
J4
4
3
2
1
SENSOR
to MAIN
0.1
C213
0.001
C16
TC7W08F
IC8B
3
4
6
5
TC7W08F
IC8A
8
7
2
1
0.1
C21
100p
C22
100p
C20
12p C18
12p C17
X1 : CR-636
1M
R50
100k
R49
1M
R46
100k
R45
(14.7456 MHz)
SEND2
BFST1
KDS1
BEEP1
ETON1
12PV1
MDIB
MDIA
0.1
C527
0.1
C37
100k R42
100k R40
KST3
KST2
KST1
KST0
KRT7
KRT6
KRT5
KRT4
KRT3
KRT2
KRT1
KRT0
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
0.1
C39
WR
RD
LCDC
LCDA
SG01
SG02
SG03
SG04
SG05
SG06
SG07
SG08
SG09
SG10
SG11
LCD1
LCD0
2.2M
R78
47k
R79
SG68
SG67
SG66
SG65
SG64
SG63
SG62
SG61
SG60
SG59
SG58
SG57
SG56
SG55
SG54
SG69
SG70
SG71
SG72
SEND1
ATXS1
DASH1
DOT1
SBSY1
KDS1
CENM1
AGRM1
SQLM1
NSQM1
SMLM1
CTCM1
BEEP1
CENS1
AGRS1
SQLS1
NSQS1
SMLS1
CTCS1
MSC1
OVDV1
TONE1
RB706F-40 D34
RB706F-40 D29 RB706F-40 D27 RB706F-40 D28 RB706F-40 D35
0.001
R141
220 R160
1M
R139
220 R136
220 R132
220 R131
1M
C89
330p
C182 C181 C163 C164 C168
330p 330p 330p 330p
0.001
C88
1SS355 D20
GND
TONE
-5V
OVDV
MSC
CTCS
SMLS
NSQS
SQLS
AGRS
CENS
BEEP
CTCM
SMLM
NSQM
SQLM
AGRM
CENM
KDS
SBSY
DOT
DASH
ATXS
SEND
220 R155
1SS355 D25
220 R124
220 R159
220 R123
220 R138
1k R125
1 C86
220 R162
220
R161
220 R137
220 R134
220 R133
1k R130
1k R129
1k R126
1SS355 D26
MIUD
PTT1
DRES
CIVE
CIV
GND
J8
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CIVE
CIV
DRES1
PTT11
ACUD 220 R113
10k
R118
220 R135
47k R116
47k
R115
47k R114
1SS355 D24
SG53
SG52
SG51
SG50
SG49
SG48
SG47
SG46
SG45
SG44
SG43
SG12
SG13
SG14
SG15
SG16
SG17
SG18
SG19
SG20
SG21
SG22
SG23 SG24 SG25 SG26 SG27 SG28 SG29 SG30 SG31 SG32 SG33 SG34 SG35 SG36 SG37 SG38 SG39 SG40 SG41 SG42
SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41
SED1540FOA
IC2
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
100
DB2
LCD3 LCD4 LCD5 LCD6 LCD7 LCD2
DB3 DB4 DB5 DB6 DB7 VDD RES FR V3 CS NC M/S V2 V1 COM0 COM1 COM2 COM3 SEG72
80
DB1
79
DB0
78
VSS
77
R/W(WR)
76
E(RD)
75
OSC2
74
OSC1
73
A0
72
SEG0
71
SEG1
70
SEG2
69
SEG3
68
SEG4
67
SEG5
66
SEG6
65
SEG7
64
SEG8
63
SEG9
62
SEG10
61
SEG11
60
SEG12
59
SEG13
58
SEG14
57
SEG15
56
SEG16
55
SEG17
54
SEG18
53
SEG19
52
SEG20
51
SEG21
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31
30
SEG42
29
SEG43
28
SEG44
27
SEG45
26
SEG46
25
SEG47
24
SEG48
23
SEG49
22
SEG50
21
SEG51
20
SEG52
19
SEG53
18
SEG54
17
SEG55
16
SEG56
15
SEG57
14
SEG58
13
SEG59
12
SEG60
11
SEG61
10
SEG62
9
SEG63
8
SEG64
7
SEG65
6
SEG66
5
SEG67
4
SEG68
3
SEG69
2
SEG70
1
SEG71
43UL1
14UL1
TXS1
TXS1
RXS1
RXS1
12UL1
LCD1
LCD0
WR
RD
LCDA
0.001
C56
0.1
C576
0.1
C577
+9V
1
µ
H
L11
470
C40
M30622MAA-869FP
IC1
80
P10/D8
79
P11/D9
78
P12/D10
77
P13/D11
76
P14/D12
75
P15/D13/INT3
74
P16/D14/INT4
73
P17/D15/INT5
72
P20/A0(/D0/-)
71
P21/A1(/D1/D0)
70
P22/A2(/D2/D1)
69
P23/A3(/D3/D2)
68
P24/A4(/D4/D3)
67
P25/A5(/D5/D4)
66
P26/A6(/D6/D5)
65
P27/A7/(/D7/D6)
64
VSS
63
P30/A8(/-/D7)
62
VCC
61
P31/A9
60
P32/A10
59
P33/A11
58
P34/A12
57
P35/A13
56
P36/A14
55
P37/A15
54
P40/A16
53
P41/A17
52
P42/A18
51
P43/A19
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
P66/RXD1 P67/TXD1 P65/CLK1 P64/CTS1/RTS1/C P63/TXD0 P62/RXD0 P61/CLK0 P60/CTS0/RTS0 P57/RDY/CLKOUT P56/ALE P55/HOLD P54/HLDA P53/BCLK P52/RD P51/WRH/BHE P50/WRL/WR P47/CS3 P46/CS2 P45/CS1 P44/CS0
29
P71/RXD2/SCL/TA
28
P72/CLK2/TA1/OU
27
P73/CTS2/RTS2/T
26
P74/TA2OUT/W
25
P75/TA2IN/W
24
P76/TA3OUT
23
P77/TA3IN
22
P80/TA4OUT/U
21
P81/TA4IN/U
20
P82/INT0
19
P83/INT1
18
P84/INT2
17
P85/NMI
16
VCC
15
XIN
14
VSS
13
XOUT
12
RESET
11
P86/XCOUT
10
P87/XCIN
9
CNVSS
8
BYTE
7
P90/TB0IN/CLK3
6
P91/TB1IN/SIN3
5
P92/TB2IN/SOUT3
4
P93/DA0/TB3IN
3
P94/DA1/TB4IN
2
P95/ANEX0/CLK4
30
P70/TXD2/SDA/TA
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
P97/ADTRG/SIN4
AVCC
VREF
P100/AN0
AVSS
P101/AN1 P102/AN2 P103/AN3
P104/AN4/KL0 P105/AN5/KL1 P106/AN6/KL2 P107/AN7/KL3
P00/D0 P01/D1 P02/D2 P03/D3 P04/D4 P05/D5 P06/D6 P07/D7
1
P96/ANEX1/SOUT4
SBSY1
TONE1
MDAT1
MCK1
CNVS
MITX
DIMV
47k
R180
10k
R35
10k
R34
C5V
+5V
100k
R205
100k
R36
0.1
C14
10k
R38
39k
R37
S-80942ANMP-DD6
IC7
5
CD
4
NC
3
VSS
2
VDD
1
OUT
0.027
C15
HN58X2464TI
IC6
8
VCC
7
WC
6
SCL
5
SDA
4
VSS
3
A2
2
A1
1
A0
+5V
RIVR
SFVR
KRT1
KRT0
KST3
KST2
KST1
J3
6
5
4
3
2
1
J10
6
5
4
3
2
1
0.001
C13
RESET
OPB11 CTCM1 CTCS1 MP1X MP1Y MP2X MP2Y MP3X MP3Y 14DT1 43DT1 12PS1 12DS1 PST41 FRST 12ST1 SCON1
MIVR
POVR
0.1 C600
0.1
C216
EVU-FLAEC2B14
R11
EVU-FLAEC2B14
R10
1k
R179
1k
5V
R178
0.1
C38
0.1
C11
47k R39
CONTROL] [MIC GAIN
[PWR CONTROL]
W1
DIMV
12k
R94
470 R95
10
C51
0.001 C52
to PLL
unit J1
GND
PCK
PDAT
+9V
14V
14V
14DT
43DT
PST4
R104 220
R103 1k
R102 1k
R41 220
R105 220
R106 220
R107 220
R108 220
14UL
43UL
GND
GND
BFST
-5V
GND
J9
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
MF1
CHASSIS
M
+
-
NC
FANV
HF50ACC322513-B
L6
KRT2
KRT4
KRT6
KRT3
KRT5
KRT7
J12 P1
3
2
1
3
2
1
[M-UP]
[M-DOWN]
[RIT]
[SATELLITE]
[F-INP]
[SWEEP]
2SB1201
Q24
KRT2
MA8068
D17
560 R98
8.2k R93
39k
R92
DTA144EU
Q23
DTA144EU
Q26
[SCAN]
100 C55
0.001
C54
0.001 C53
2SC4116
Q25
10
R90
DTA144EU
Q22
10k R91
KRT5
14V
5V
+5V
82
R15
COM4 COM3 COM2 COM1
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9
SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35
COM4 COM3 COM2 COM1 SG01 SG02 SG03 SG04 SG05 SG06 SG07 SG08 SG09 SG10 SG11 SG12 SG13 SG14 SG15 SG16 SG17 SG18 SG19 SG20 SG21 SG22 SG23 SG24 SG25 SG26 SG27 SG28 SG29 SG30 SG31 SG32 SG33 SG34 SG35
COM1 COM2 COM3 COM4 SG36 SG37 SG38 SG39 SG40 SG41 SG42 SG45 SG44 SG43 SG46 SG47 SG48 SG49 SG50 SG51 SG52 SG53 SG54 SG55 SG56 SG57 SG58 SG59 SG60 SG61 SG62 SG63 SG64 SG65 SG66 SG67 SG68 SG69 SG70 SG71 SG72 SG73
COM1 COM2 COM3 COM4 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48 SEG49 SEG50 SEG51 SEG52 SEG53 SEG54 SEG55 SEG56 SEG57 SEG58 SEG59 SEG60 SEG61 SEG62 SEG63 SEG64 SEG65 SEG66 SEG67 SEG68 SEG69 SEG70 SEG71 SEG72 SEG73
81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40
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 31 32 33 34 35 36 37 38 39
2SD1664
Q1
82
R16
27
R14
A0095
DS31
2SC4116
Q11
1k
R13
10
R12
43LV1
NSQM1
SMLM1
CENS1
NSQS1
OVDV1
AVXL1
VOXL1
10k
R183
ALCL1
TEMP1
47k
R96
0.1 C4
0.1 C3
BU4052BCFV
IC5
16
VDD
15
X2
14
X1
13
X
12
X0
11
X3
10
A
9
B
8
VSS
7
VEE
6
INH
5
Y1
4
Y3
3
Y
2
Y2
1
Y0
BU4052BCFV
IC4
16
VDD
15
X2
14
X1
13
X
12
X0
11
X3
10
A
9
B
8
VSS
7
VEE
6
INH
5
Y1
4
Y3
3
Y
2
Y2
1
Y0
PHIN1
MIUD1
CENM1
SMLS1
FORL1
MP3Y
MP2Y
MP2X
MP1Y MP1X
MPSA MPSB MP3X
RIVR
MAVR
MSVR
MIVR
SSVR
SFVR
POVR
SAVR
0.001
C6
0.001
C5
0.1
C2
1SS355
D9
BU4052BCFV
IC3
16
VDD
15
X2
14
X1
13
X
12
X0
11
X3
10
A
9
B
8
VSS
7
VEE
6
INH
5
Y1
4
Y3
3
Y
2
Y2
1
Y0
TST0
KRT7
KRT6
KRT5
47k
R9
47k
R8
47k
R7
12KT
43KT
14KT
1k R186
1k
R187
10k R189
1k R188
+5V
+5V
390 R77
SAVR
SSVR
MAVR
MSVR
STLE
SRLE
MTLE
SEC2462C
DS33
470 R76
J2
6
5
4
3
2
1
J11
6
5
4
3
2
1
0.001
C90
0.001 C12
TX/RX LED
SUB
TX/RX LED
390 R75
R74
KRT2
KRT1
KRT0
KST0
MRLE
SEC2462C
DS32
470
1SS355
D37
[VOX]
[COMP]
[TX]
DAP202K
D36
0.001
C1
1k
R1
POWK
MAIN
KRT4
KRT3
KRT2
KRT1
KRT0
KRT2
KRT1
KRT0
1SS355
D3
1SS355
D2
1SS355
D1
47k
R6
47k
R5
47k
R4
47k
R3
47k
R2
VER3
VER2
VER1
[KOR]only
[AUS], [EUR]only
except[USA-1]
except[EUR]
except[USA-1]
except[USA-1]
KRT6
KRT5
KRT4
1SS355
D7
1SS355
D6
1SS355
D5
12KR
43KR
14KR
100
C206
8.2k
R204
10k
R190
4.7k R17
4.7k R18
SLF7032T-101MR45-2
L201
0.1
C205
100
C204
0.1
C207
1.5 R202
1.5 R201
NJM2360M
IC201
8
CD
7
SI
6
V+
5
INVIN
4
GND
3
CT
2
ES
1
CS
100
C212
100
C209
2.7k
12KT
14KT
43KT
R203
0.1
C211
SLF7032T-101MR45-2
L203
SLF7032T-101MR45-2
L202
0.1
C210
150p
C208
SB07-03C
D202
MP801
DS1
DS4
DS7
DS2
DS5
DS8
DS3
DS6
DS9
DS16
DS1 - DS24
TLGE1002
DS13
DS10
DS17
DS14
DS11
DS18
DS15
DS12
DS21
DS20
DS19
DS24
DS23
DS22
KRT6
KRT7
KST0
KST1
KST2
KST3
[CALL]
[SUB]
[M/S]
KRT5
KRT2
KRT5
KRT6
KRT3 KRT4
KRT7
1SS355
D41
DAP202K D42
DAP202K D43
DAP202K
D44
DAP202K
D45
DAP202K
D46
[CHECK]
[MW]
[V/M]
[SPLIT]
[SSB]
[TONE]
[FM]
KRT3
KRT6
KRT3
KRT4
KRT7
KRT4
DAP202K
D47
DAP202K
D48
DAP202K
D49
DAP202K
D50
DAP202K
D51
DAP202K
D52
[MPR]
[M->V]
[A/B]
[MPW]
[M-CL]
[A=B]
GND
MAVR
MSVR
[AF VR]
[SQL VR]
VR-A BOARD
VR-B BOARD
RIT BOARD
JACK BOARD
MIC BOARD
FUNC BOARD
RV-314
R1
MAIN
SUB
+5V
J1
6
5
4
3
2
1
GND
SAVR
SSVR
[SQL VR]
[AF VR]
RV-314
R1
J1
6
5
4
3
2
1
+5V
J1
6
5
4
3
2
1
GND
RIVR
SFVR
+5V
NC RV-316
R1
[SHIFT VR]
[RIT VR]
PHIN
GND
SSPO
PHG
MSPO
GND
J2
1
2
3
4
5
6
0.001
C1
0.001
C3
0.001
C2
100 R2
100 R1
HF50ACC322513-B
L1
J1
J2
10
1
2
3
4
5
6
7
8
9
MSQLS
GND
+9V
MIUD
PTT
AFO
GND
MICE
MIC
1
2
3
4
5
6
7
8
J1
[TS SW]
[AGC SW]
[AFC SW]
[LOCK SW]
DAP202K
D3
DAP202K
D2
GND
GND
KRT1
KRT0
KST3
KST2
KST1
J1
6
5
4
3
2
1
DAP202K
D1
[ATT SW]
[SET SW]
R101
100k R100
100k
C72
0.001 C73
0.001
C71
0.001
L10
HF50ACC322513-B
BFST1
PCK1
PDAT1
43UL1
14UL1
PST41
43DT1
14DT1
68nsec
4.96
4.96
4.6V
11.5msec
at 88.5Hz
FM,TONE ON,at TX
3.9V
4.76
0
MEASUREMENT CONDITIONS
MAIN:146.0MHz MODE:FM
SUB :440.0MHz MODE:FM
DIGITALMULTIMETER
Unit:Volt
PTT ON :0.19
PTT OFF:0.67
13.57 13.38
PTT ON :0.19
PTT OFF:0.67
TX:4.93
RX:0 TX:0
RX:0.64
5.07
FAN ON:11.62
OFF:13.36
FAN ON:7.37
OFF:0
FAN ON:0.19
OFF:0
7.22
4.33
4.92
4.96
4.33
-5.01
LOCK :0
UNLOCK:4.15
LOCK :0
UNLOCK:4.11