Icom IC-F8101 - Voltage Diagram: Main-A Unit (6;6)

11-8
*: Refer to the PARTS LIST for the value and name of component.
• MAIN-A UNIT (6/6)
DRVC
PWS
DRFS_3
REF
DSKY
VCT4
HV
EXRE
14V
VCT5
3DST
T8V
R8V
AUXG
VBUSK
1DST
ICCV
DTXD
BEEP
MCK
DSHS
TEMP
1CNO
IDV
MDT
ICL
DRES
ICH
BST
FANV
TXD
CK
ALE2
RXD VSQL
DT
CWK
DTFS_3
ALE1
5V
TRFD
RL1
CWST
ST9
STR
DRXD
POCV
DCLK
FOR
ST8
REFV
VLED
GPTXD
ID1V
EXTXD
ID2V
3.3V
MODPTT
EXRXD
ID3V
TCON
ECK
8V
EDT
TSTART
ID4V
HSK0
GPRXD
PTT
TKEY
NJM2904V
IC1814
V+
8
GND
4
CP05S
CP1824
1k
R1864
1k
R1836
0.1
C1840
220k
R1867
47k
R1820
220R1917
KDS122
D1804
0.0047
C1823
0.1
C1842
L1SS400
D1809
NJM2904V
IC1814
6
5
7
0R1825
47kR1950
47k
R1869
1kR1830
220kR1875
470
R1926
KDS122
D1802
47k R1808
100k R1818
47k
R1966
0
R2037
NJM2904V
IC1814
2
3
1
100k
R1914
0.0047
C1821
0
R1932
0.001
C1835
220kR1895
CP05S
CP1827
47kR1922
47
C1857
R1809 1k
10k
R1853
0.1
C1850
47k
R2004
0.0047
C1838
47k
R1850
220kR1892
S-80842CNMC
IC1808
1
OUT
2
VDD
3
VSS
4
NC
5
NC
47k
R1969
47kR1906
220kR1890
0.0047
C1829
D1803
KDS122
0R1826
CP05S
CP1828
560k
R1925
47kR1905
220kR1897
0.0047C1810
47k
R2035
47kR1934
S-812C50AUA
IC1801
IO
G
R1813 1k
12PC1827
1kR1834
100k
R1863
220kR1894
47P
C1909
47k
R1947
0.1
C1834
56k
R1857
0
R2003
0.1
C1806
0.1C1859
0.1 C1846
L1802
HF50ACC322513
47kR2024
CF20OPEN
CP1802
MMZ1608D121B
EP1801
0.0047C1812
47kR1939
R2A20169SA
IC1815
1
VrefL
2
Ao3
3
Ao4
4
Ao5
5
Ao6
6
Ao7
7
Ao8
8
Ao9
9
Ao10
10
VrefU
11
Vcc
12
Ao11
13
Ao12
14
Do
15
LD
16
CLK
17
DI
18
Ao1
19
Ao2
20
GND
0.001
C1833
10k
R2002
220kR1887
CP05S
CP1829
R1824
220
22
C1807
4.7k
R1931
CF20OPEN
CP1808
47k
R1814
10kR1817
47k
R1852
CP05S
CP1822
47kR1930
220kR1879
Q1806
DTC114EU
47k
R2022
220kR1882
0.1
C1864
2.2k
R1872
0.0047C1815
0.1
C1804
220kR1896
220R1919
47k
R1972
0.1
C1814
68k
R1910
47
C1858
33
R1815
220kR1876
CP05S
CP1830
47k
R1838
CP06S
CP1811
47kR1935
TC7S04F
IC1802
1
2
3
4
5
0.1
C1837
47kR2026
10kR1998
47k
R1840
0.0022
C1851
47kR1942
0.1
C1831
SN74AHC244PW
IC1817
1
ENA
2
A1
3
YB4
4
A2
5
YB3
6
A3
7
YB2
8
A4
9
YB1
10
GND
11
B1
12
YA4
13
B2
14
YA3
15
B3
16
YA2
17
B4
18
YA1
19
ENB
20
VCC
47k
R1944
0
R1995
0.001
C1832
RX-8571SA
IC1819
1
GND
2
NC
3
DSA
4
SCL
5
SDA
6
/BM
7
FOE
8
VDD
9
NC
10
/IRQ
11
NC
12
NC
13
NC
14
FOUT
10kR1911
0.1C1839
CP05S CP1831
0.1
C1848
47k
R2023
D1806
KDS122
68k
R1909
0
R2038
12PC1826
0.1
C1854
0.1
C1841
1kR1832
100k
R1849
220kR1884
0.1
C1808
470k
R1866
1kR1807
47kR2025
15kR1821
2590
MP1010
TC7W04FU
IC1804
1
2
3
4
5
6
7
8
2SC4116
Q1801
47kR1929
220kR1877
56k
R1856
0.0047
C1843
220R1915
CP05S
CP1907
0.0022C1820
1k
R1823
220kR1893
4.7k
R1822
0.1
C1856
220k
R1868
CP05S
CP1825
CP05S CP1910
UMD3N
Q1809
1
2
3
4
5
6
47
C1816
CP05S
CP1908
0.1
C1853
2SA1586
Q1811
CP05S
CP1832
1M
R1847
220kR1899
R1LP0108ESA
IC1812
1
A11
2
A9
3
A8
4
A13
5
WE
6
CS2
7
A15
8
VCC
9
NC
10
A16
11
A14
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
DQ0
22
DQ1
23
DQ2
24
GND
25
DQ3
26
DQ4
27
DQ5
28
DQ6
29
DQ7
30
CS1
31
A10
32
OE
2SC4116
Q1805
CD4028BNSR
IC1805
1
4
2
2
3
0
4
7
5
9
6
5
7
6
8
VSS
9
8
10
A
11
D
12
C
13
B
14
1
15
3
16
VDD
10k
R1870
0.1
C1830
0.1
C1902
4.7k
R1803
560k
R1923
220kR1878
220kR1991
DMG564010
Q1803
1
2
3
4
5
6
47k
R1936
CP05S
CP1911
1kR1806
CP05S
CP1909
220kR1883
L1SS400
D1814
22k
R1837
0.1C1852
10k
R1871
100P
C1803
2.2k
R1805
47kR1927
0.001
C1822
10U
L1804
*R2006
220kR1881
47kR1928
100kR1858
CP05S
CP1826
0.0047C1855
0.001
C1883
220kR1880
L1SS400
D1807
TC74LVX4245FS
IC1818
1
VCCA
2
DIR
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
10
A8
11
GND
12
GND
13
GND
14
B8
15
B7
16
B6
17
B5
18
B4
19
B3
20
B2
21
B1
22
G
23
VCCB
24
VCCB
10kR1912
220kR1886
*R1901
1kR1831
HU1632
J1802
47k
R1841
CF20OPEN
CP1803
47k
R2030
DMG564010
Q1804
1
2
3
4
5
6
47k
R1908
220kR1898
47kR2029
220kR1885
0.01
C1819
R1812 1k
47k
R1941
CP05S
CP1912
47kR2028
0
R1949
J1801
1
2
3
4
5
6
7
8
9
10
220R1920
CP05S
CP1821
47k
R2027
CP05S
CP1823
12k
R1913
*R2005
TC7S08F
IC1807
1
2
3
4
5
*R1900
220R1918
220kR1889
1k
R1968
47kR1924
0.1
C1836
47k
R1819
0
R1827
220kR1891
R1811 1k
47k
R1848
220R1943
47k
R1940
1k
R1851
220kR1888
CP05S
CP1913
10k
R2019
0.0047
C1805
47
C1845
CR-917
X1802
220R1921
100U
L1818
R1801
12k
R1802
4.7k
R1EX24512BSAS0I#K0
IC1810
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
CF20
CP1809
CF20
CP1810
CF20
CP1812
CP08S
CP1813
R5F36CAMDFB
IC1806
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 40 41 42 43 44 45 46 47 48 49 50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
RESET
D0 D1 D2 D3 D4 D6 D7
BEEP_8
TEMP_8
DCV
BEEP_8
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18 A19 CS0
RDY RD
CNVSS
EXRXD_8 EXTXD_8
TCON
TSTART
EXRXD_8
CK
GPRXD_8
TCON
EXRXD_8
EXTXD_8
ST7
BST
MDT
MCK
ALE1_8
ALE2_8
TRFD_8
VSQL_8
CWST_8
R8V_8
T8V_8
TXS
RXS
T8V_8
R8V_8
EPM
D7
D6
D5
D4
D3
D2
D1
D0
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A1
A0
VBUSK
RDY
ST8
3DST
1DST
RL1
RL1
1DST
DTFS
DRFS
DRFS_3
DCLK
DTXD
RESET
WR
WR
WR
EXTXD_8
EPM
CNVSS
D5
ST9
TXS RXS
PWS_8
DTFS_3
VBUSK_8
MDT
DRFS_3
DCLK
DTXD
DTFS_3
DCL5 DTX5
DSKY_6
DRES
DSK5 EXRE
EXRE
HSK5
VSQ5
DRXD
HSK0
VSQL_8
TRFD_8
ALE2_8
DSKY_6
DRXD
HSK0
DT
CK
STR ST8 ST9
MCK
MDT
DRES
DSHS_6
DSHS5
DSK5
DSHS_6
1C5
FOR_8
REF_8
H5
EXRE
PWS_8
CLK1
DRX
ALE1_8
CLK1
TSTART
FZBUSY
A2
GPTXD_8
DRX
EXRXD_8
EXRXD_8EXRXD_8
A11
A9
A8
A13
A15
A16
A14
A12
A7
A6
A5
A4
WR
ECK
EDT
RTCIRQ
ECK EDT
RTCIRQ
1CNO
A0
A1
RD
A10
CS0
D7
D6
D5
D4
D3
D2
D1
D0
A0
A1
A2
A3
CWST_8
1C5
VBUSK_8 VBUSK_8
TKEY
TKEY
MCK
5V
MODPTT
MODPTT
STR
ECK
EDT
DRFS
DCL5
DTX5
DT
DTFS
GPRXD_8
GPTXD_8
3.3V
ST7ST7
BST 3DST
1CNO
FZBUSY
DCV
TEMP_8
REF_8 FOR_8
DCV
TEMP_8
REF_8
FOR_8
ECK
EDT
DRX5
TO FRONT
ACC
38400bps
FLASH Writer
USB (ACC)
RF(ALC)
DSP
PA
MAIN
PA(non switvhed 13V)
PA(switched 13V)
PA(Power SW)
MAIN(To 5V REG)
MAIN(RX SW)
MAIN(TX SW)
8V
TX
RX
T8V
R8V
TO DSP
5V to 3.3V
3.3V
3.3V to 5V
TO DSP
(FOE)
(FOUT)
(DAS)
(BM)
To DSP-1
To DSP-1
TO DSP
SW ON=4.8 V
SW OFF=0 V
TX=6.8 V
RX=0 V
TX=4.9 V
RX=0 V
TX=0 V
RX=4.7 V
TX=0 V
RX=6.5 V