Main Unit (1) - Icom IC-910H Service Manual

12-5 MAIN UNIT (1)

MAIN
UNIT (1)
J1351
GND
NC2 14V
43PV 43PV 5V
REF REF -5V
FOR FOR 9V
POWS POWS MCK
VUT9 VUT9 MDTC
UATT UATT MCKC
from PA
UR9V UR9V DATA
unit J39
VUMS
UT9V UT9V IC1451
BU4094BCFV
UPRI UPRI
5V 1
D1351
STR
UTU1 UTU1 DAN222 2
D
14V 3
CLK
14V 4
Q1
5
Q2
430S 6
Q3
144M 7
Q4
C1603 8
C1601 0.0047
J1301
0.1
NC1 R1301
1M
ICH ICH TEMP
R1601 10k
ICL ICL
R1618
VTU2 VTU2
8.2M
R1625 470k
BAND BAND D1301
VPRI VPRI DAN222
GND 8.52
UTU2 UTU2
from PA R1602
VATT VATT 12TP 4
unit J504 100 -
VR9V VR9V ALCL 1 2
IC1601A
HV HV T9V NJM2058M
D1610 +
VT9V VT9V 11 3
R1620 1SS355
GND 3.9k
1.436
14PV 14PV
R1643
VTU1 VTU1
100 -4.38
VUTP
C1511 0.01
IC1511
4.98
J1151 BU4094BCFV
GND 1 16
STR
CIV CIV MDAT 2 15
D OE
CIVE CIVE 3 14
CLK Q5
DRES DRES 4 13
Q1 Q6
PTT1 PTT1 D1ST 5 12
Q7
Q2
MIUD MIUD DPST 6 11
Q3 Q8
SEND SEND SPST 7 10
Q4 QS
ATXS ATXS 8 9
QS
DASH DASH
DOT DOT
SBSY SBSY
KDS KDS
CENM CENM
AGRM AGRM
SQLM SQLM
from DISPLAY
NSQM NSQM
unit J8
SMLM SMLM
CTCM CTCM
BEEP BEEP
CENS CENS
AGRS AGRS
SQLS SQLS
NSQS 14V
SMLS SMLS 5V
CTCS CTCS -5V
MSC MSC 9V
OVDV OVDV MCK
-5V -5V MDTC
TONE TONE MCKC
GND DATA
J1101
J1751
GND
INTS INTS INTS OPTION
INTM INTM INTM
TXS TXS TXS
RXS RXS RXS
SCON SCON SCON
MCK
MDAT MDAT MDAT
9V
ETON ETON ETON
AVXL AVXL
VOXL VOXL VOXL
5V
from DISPLAY
PCK PCK PCK
unit J7
PDAT PDAT PDAT IC1101
OPB1 OPB1 OPB1 TC7W32F
FORL FORL FORL
12PS 12PS 12PS 1 8
J1761
ALCL ALCL ALCL
12DS 12DS 12DS 2 7
OPTION
43PV 43PV 43PV
12UL 12UL 12UL 3 6
14PV 14PV 14PV
12ST 12ST 12ST 4 5
POWS POWS POWS
12PV 12PV 12PV
TEMP TEMP TEMP
GND
12 - 5
14V
5V
-5V
9V
MCK
MDTC
MCKC
DATA
IC1461 IC1471
BU4094BCFV BU4094BCFV
16 1 16 1 16
STR STR
15 2 15 2 15
OE D OE D OE
14 3 14 3 14
Q5 CLK Q5 CLK Q5
13 4 13 4 13
Q6 Q1 Q6 Q1 Q6
12 5 12 5 12
Q7 Q2 Q7 Q2 Q7
11 6 11 6 11
Q8 Q3 Q8 Q3 Q8
10 7 10 7 10
QS Q4 QS Q4 QS
9 8 9 8 9
QS QS D1608 QS
DA221
9V
R1605 1M
D1602
R1651
DAP222 R1603 9
100
470 - 8.78
8
R1608
10 100k
+ R1654 R1655
IC1601C
82k 82k
NJM2058M
8 3
0.586 +
1
2
-
4
C1653
R1631
IC1651A
8.2M CP1631 0.0022
NJM4565M
R1633
820k
6 R1615 C1654 R1658
- R1611 1M 47k 0.1 180k
7
5
+ R1604
PAST IC1601B 13
470 -
NJM2058M R1616
MAST 14 IC1807D
47k R1676
SUST 12 NJM2058M
+ 120k
DOST IC1601D 13
-
NJM2058M 14
3.22
D1606 D1605
12
MA8043 1SS355 +
14V
5V
-5V
9V
MCK
MDTC
MCKC
DATA
R1834 100
J1771
R1771 470 OPTION R1874 100k
R1772 470 UT-102
R1773 470
R1774 470
R1775 470 1
CP1803 CP1805 CP1804
IC1807A
CP1801 CP1802
J1801 NJM2058M
R1776 470
R1802
MDTC SPST
UT-106 1k
BUSY MCKC
R1835
5V SPCE
100
GND SPCH
P1771 W1771
CP1807
CP1808
J1802
R1803 10k
R1806
P1781
10k
W1781 C1809 0.1
IC1802
BU4053BCFV
1 16
Y1
2 15
Y
Y0
J1781 3 14
Z1 X
R1781 470 4 13
Z X1
R1782 470 5 12
UT-106 Z0 X0
R1783 470 6 11
INH A C1810
R1784 470 7 10
B 0.1
R1785 470 8 9
C
R1824
10k
R1786 470
R1825
10k R1876 C1872
150k 0.01
14V
5V
-5V
9V
MCK
13.51
C1522 0.1
DATA
R1591 100k
IC1481 IC1491
BU4094BCFV BU4094BCFV
1 16 1 16 R1524 4 2
IC1522A
STR STR 1k -
2 15 2 15 1 NJM2058M
D OE D OE
3 14 3 14 3
CLK Q5 CLK Q5 +
4 13 4 13 11
Q1 Q6 Q1 Q6
5 12 5 12
Q2 Q7 Q2 Q7
6 11 6 11 -5.0
Q3 Q8 Q3 Q8
7 10 7 10
Q4 QS Q4 QS
8 9 8 9
QS QS
R1593 100k
R1594
R1522 100k
6
1k -
7
5
IC1522B
+
NJM2058M
9V
R1666
7.13
R1647 18k R1649 47k 33k
R1665
Q1651
100
2SC4116 C1660
1 W1601
R1659 150k R1660 560k
5.04
C1656 R1664 C1658 R1667
0.1 2.2k 1 220
5 IC1653
+
7 BU4053BCFV
R1662 180k C1657 0.1
6 4.36 1 16
- Y1
2 15
IC1651B
C1680 R1661 Y0 Y
NJM4565M 3 14
0.1 270 Z1 X
4 13
Z X1
5 12
C1829 C1831 Z0 X0
0.056 1 6 11
INH A
6 7 10
- B
8.76 7 8 9
D1652 R1677 C
5
+
MA728 1M
IC1652B
R1831
NJM2058
47k
R1679 100k
8 3
+
1
2 4.28
-
4
R1678 C1674 R1830
IC1654A
100k 0.1 100k
NJM4565M
C1665 R1653
1 10k
14V
5V
-5V
9V
8.54
R1814 1k
R1671 8.51 C1664
R1872 100k C1873 0.0047 100 10
4 2
-
R1871 100k C1874 0.0047
3
+
11
C1662 R1668
C1833 4 2
10 2.2 2.7k -
1
3
IC1652A +
-4.47 11
NJM2058M
R1688 C1663
C1803 C1804 0.1 100 10
0.1
-4.37
R1809 150k
IC1803
M62363FP-650C
C1811 220p
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
9
- IC1801 4 21
VIN2 VIN7
8 BU4053BCFV 5 20
VDD GND
10 + 1 16 6 19
IC1807C Y1 LD RESET
2 15 7 18
NJM2058M Y VDAREF
Y0 CLK
3 14 8 17
Z1 X DI DO
4 13 9 16
R1807 150k Z X1 VIN3 VIN6
5 12 10 15
Z0 X0 VOUT3 VOUT6
6 11 11 14
C1814 220p INH A VOUT4 VOUT5
7 10 12 13
B VIN4 VIN5
6 R1810
- 8 9
4.7k C
7
5
+
IC1807B
NJM2058M
R1894
10k
14V
5V
-5V
9V
MCK
C1521 0.01
DATA
IC1521 IC1531
M62352GP BU4053BCFV
R1595 100k
9 10 11 1 16
- VDD VCC Y1
8 9 12 2 15
AO10 AO11 Y0 Y
10 8 13 3 14
R1523 + AO9 AO12 Z1 X
IC1522C 7 14 4 13
1k AO8 DO Z X1
NJM2058M
6 15 5 12
AO7 LD Z0 X0
5 16 6 11
AO6 CLK INH A
4 17 7 10
AO5 DI B
3 18 8 9
AO4 AO1 C
R1597 100k 2 19
AO3 AO2
1 20
R1598
VSS GND
R1521 100k
13
1k -
14 R1702 C1702
12 10k 0.1
IC1522D
+
NJM2058M
9V
9.09 R1701
IC1701
R1681 100k R1709 10k R1717 220k 220k
PC5023-077
12 13
C1724 0.1 VCC NC C1713 100p
11 14
SWC AVI
10 15 5
VCAC AVO +
9 16 R1727 100k 7
VCAO MUTE
8 17 C1715 470p 6
R1733 10k C1705 0.1 R1713 220k VCAI VOXO -
IC1654B
7 18
C1723 0.1 R1712 47k SWO VOXI NJM4565M
6 19
BU1O BU2O
5 20
R1710 47k BU1I BU2I
4 21
AMPO
SWI
3 22
CMPO AMP-
2 23
C1707 1 R1711 1k CMPI AMP+
1 24
R1714 100k NC GND
R1689 100k R1706
10k
IC1652C R1729 220
NJM2058M
C1704
9
- C1720 1
8 22
10
+
R1715 C1708
56 0.1
IC1652D
R1730
NJM2058M
1k
13
-
14
12
+
L1852
IC1852 HF50ACC322513-B
LA4445 L1851
LW-15
R1847
8.2k
C1838 C1837 R1840
4.33
10 220 100 headphone connected
headphone not connected:0.131
R1841
47k
13.42
IC1808 7.91
M5282FP
1 10 C1844 R1849
VCC2 VCC 10 8.2k C1861 470
2 9
IN+ VCAOUT
3 8
IN- CTL C1862 470
4 7
OUT VCAIN R1844
5 6 2.7M
GND NC
C1842
1 C1827 0.1
C1846 C1845 R1850
4.33
10 220 100 R1895
3.3k
IC1806
R1851
BU4053BCFV
47k
IC1809 7.91 1 16
M5282FP Y1 R1861
2 15
Y0 Y 150k
1 10 C1852 R1859 3 14
VCC2 VCC 10 8.2k Z1 X
2 9 4 13
IN+ VCAOUT Z X1
3 8 5 12
IN- CTL Z0 X0
4 7 6 11
OUT VCAIN INH A
5 6 7 10
GND NC B
8 9
C
C1850
1
CP1566
J1561
L1561 100 H
SQL
14V 6 5
5V OUTM DOUT
4
-5V
R1561 22k L1562 100 H
9V 2 1
CP1564
DATA1 (TX/RX)
L1563 100 H
DIN
L1564 100 H
PTT1
IC1552
L1565 100 H
BU4053BCFV
1 16
Y1
2 15
Y0 Y
3 14
Z1 X
4 13
Z X1
5 12
Z0 X0 CP1576
6 11
INH A R1571 22k
7 10 J1571
B
8 9 L1571 100 H
C SQL
6 5
OUTS DOUT
4
L1572 100 H
Q1561 2 1
XP4312
CP1574
4
DATA2 (RX ONLY)
3
5
R1581 22k L1575 100 H
IC1551
CP1575
6 2 BU4053BCFV Q1581
DTC144EU
1 16
Y1
1 2 15
Y0 Y
3 14
Z1 X L1581 100 H
4 13 SQL SQL 6
Z X1
Q1571 5 12
Z0 X0 L1582 HF50ACC322513-B
XP4312 J1581
6 11 14V 13.8V 7
INH A
4 7 10
B L1583 100 H
8 9 ALC 8
C 7
5 3
L1584 HF50ACC322513-B
SEND SEND 3
3 8
C1555 1 L1587 100 H
6 2 AAF AF 5
5
C1552 0.1 L1586 HF50ACC322513-B 2
1 GND 2
ACC
L1585 100 H
MOD MOD 4
TX:0
TX:0 TX:4.92 TX:0.713 RX:3.47
RX:4.96 RX:0 RX:0
Q1583 Q1582
DTC114EU R1583 2SD1619
1k
Q1584 J1851
DTA114EU
(MAIN-SP)
L1853
SEND HF50ACC322513-B
J1852
14V f
5V
-5V e
(SUB-SP)
9V
IFS
IFS IFS
AFIM
AFIM AFIM J1853
AFIS
AFIS AFIS
R9V
R9V from PA
T9V
T9V unit J50
AGRM
Q1855 L1854
AGRM
DTC114EU AGFM HF50ACC322513-B
AGFM
AGSM
AGSM
RFGM AFS
:9.10 RFGM AFS
1F1M AFRP
1F1M AFRP J1401
1F2M 144M DASH
1F2M 144M
1FTM 430M
C1865 1FTM 430M
WNCM 144S DOT
0.0047 WNCM 144S (KEY)
TCWM 430S
TCWM 430S
NBSM TXS
NBSM TXS
RL1851 OPB1 RXS
OPB1 RXS
ATX-209 12PV VR9V
12PV VR9V
12UL UR9V
12UL UR9V J1403
12DS VUT9 CIV
12DS VUT9
12PS VT9V
12PS VT9V
12ST UT9V
12ST UT9V (REMOTE)
MAIN (2) SMLM T9V MAIN (3)
SMLM T9V
NSQM R9V CIVE
NSQM R9V
CENM CENS
CENM CENS
CTCM CTCS
CTCM CTCS
OUTM NSQS
OUTM NSQS
DSSW AGRS
DSSW AGRS J1251
P1201
PCK AGFS
PCK AGFS
PDAT AGSS MSPO
headphone connected :9.10 PDAT AGSS
headphone not connected:5.77 DRES NBSS SSPO
DRES NBSS
KDS 1F1S PHG
KDS 1F1S
ALC 1F2S 14V
ALC 1F2S
SSBI 1FTS HV
SSBI 1FTS
MODO WNCS
MODO WNCS
AF1M SMLS
AF1M SMLS
AF2M OUTS
AF2M OUTS
SQLM RFGS
SQLM RFGS
12TP DSSW
12TP DSSW
AFM AF1S MIC
AFM AF1S
1FOR AF2S MICE
1FOR AF2S
RXS SQLS
RXS SQLS
TXS
J1201
TXS
MAIN - BAND SUB - BAND
AF
PTT
3
AF
3
6
1
4
1
to DISPLAY
unit J14