Icom iV86, Service Manual Addendum

Page: 23 / 78

8-5b
The underlined parts have been updated from the previous version of the addendum, or from the original page.
February
2021
• MAIN-A UNIT (for IC-G86) (2/3)
[VOL]
EEPROM 16 kbyte
CLOCK/CLOCK SHIFT 12.288 MHz
RESET
CLONE
BUFFER
[PTT]
[1]•[TONE] [2]•[VOX] [3]•[T.SCAN] [MONI]
[4]•[DUP] [5]•[SCAN]
[6]•[SKIP]
[▲]
[7]•[PRIO] [8]•[SET]
[VFO/MR/CALL]
[▼]
[9]•[H/M/L]
[*]•[FUNC] [0]•[DTMF-M]
MAIN-A UNIT
(3/3)
MAIN-A UNIT
(1/3)
[# ENT]•[ ]
0.027
C425
NJU7704F3
IC403
1
CD
2
VSS
3
MR
4
VOUT
5
VDD
CP06S CP400 CP06S CP401
CP06S
CP403
1
C420
STM32L073VBT6
IC402
1
PE2
2
PE3
3
PE4
4
PE5
5
PE6
6
VLCD
7
PC13
8
PC14-OSC32_IN
9
PC15-OSC32_OUT
10
PH9
11
PH10
12
PH0-OSC_IN
13
PH1-OSC_OUT
15
PC0
16
PC1
17
PC2
18
PC3
19
VSSA
20
VREF-
21
VREF+
22
VDDA
23
PA0
24
PA1
25
PA2
26
PA3
27
VSS
28
VDD
29
PA4
30
PA5
31
PA6
32
PA7
33
PC4
34
PC5
35
PB0
36
PB1
37
PB2
38
PE7
39
PE8
40
PE9
41
PE10
42
PE11
43
PE12
44
PE13
45
PE14
46
PE15
47
PB10
48
PB11
49
VSS
50
VDD
51
PB12
52
PB13
53
PB14
54
PB15
55
PD8
56
PD9
57
PD10
58
PD11
59
PD12
60
PD13
61
PD14
62
PD15
63
PC6
64
PC7
65
PC8
66
PC9
67
PA8
68
PA9
69
PA10
70
PA11
71
PA12
72
PA13
73
VDD
74
VSS
75
VDD_USB
76
PA14
77
PA15
78
PC10
79
PC11
80
PC12
81
PD0
82
PD1
83
PD2
84
PD3
85
PD4
86
PD5
87
PD6
88
PD7
89
PB3
90
PB4
91
PB5
92
PB6
93
PB7
94
BOOT0
95
PB8
96
PB9
97
PE0
98
PE1
99
VSS
100
VDD
14
NRST
CR-1021
X400
MMZ1005A152ET
EP400
1
C427
*D400
*D406
*D405
*D404
*D401
*D407
*D403
*D402
VCC
+5V
S5V
T5V
+3.3V
+5V
VCC
+3.3V
T5V
S5V
1
C417
L1SS400
D408
L1SS400
D410
L1SS400
D411
LRB706F
D413
15.0k
R427
12P
C416
CP06S CP404
DTC044TEB
Q401
2SC4116
Q400
0.1
C405
0.1
C409
0.1
C410
0.1
C411
0.1
C412
0.1
C414
0.1
C415
0.1
C418
0.1
C421
0.1
C426
0.1
C428
12P
C413
CP06S CP405
CP06S CP406
R429
10k
R409
10k
R410
10k
R411
10k
15k
R426
1k
R407
1k
R404
1k
R405
1k
R406
R421
1M
2.2k R400
2.7k
R401
R413 4.7k R412 4.7k
47k
R425
47k
R403
47
R417
47
R416
KEY
S410
KEY
S411
KEY
S412
KEY
S413
KEY
S415
KEY
S416
KEY
S417
HT-191UYG
DS402
HT-191UYG
DS401
BR24G128NUX
IC400
1
A0
2
A1
3
A2
4
GND
5
SDA
6
SCL
7
WP
8
VCC
9
KEY
S418
GP11538A6
DS400
2
COM2
3
COM3
4
COM4
5
SEG1
6
SEG2
7
SEG3
8
SEG4
9
SEG5
10
SEG6
11
SEG7
12
SEG8
13
SEG9
14
SEG10
15
SEG11
16
SEG12
17
SEG13
18
SEG14
19
SEG15
1
COM1
20
SEG16
21
SEG17
22
SEG18
23
SEG19
24
SEG20
25
SEG21
26
SEG22
27
SEG23
28
SEG24
29
SEG25
TAFG-12W
S401
CP06S CP410 CP06S CP411 CP06S CP412 CP06S CP413 CP06S CP414
270P C408
0
R428
0.001
C430
0.001
C437
CP06S
CP408
ED08902OFK150S070C
S400
E
UP
DN
10
C429
47P
C451
47P
C452
47P
C453
47P
C454
47P
C455
47P
C456
47P
C457
47P
C458
47P
C459
47P
C460
47P
C461
47P
C462
47P
C463
47P
C464
47P
C465
47P
C466
47P
C467
47P
C468
47P
C469
47P
C470
47P
C471
47P
C472
47P
C473
47P
C474
47P
C475
0.001
C446
47P
C477
47k
R402
68
R430
KR0
KS2
SWCLK
KS1
KS0
SEG2 SEG1 SEG24 SEG25
DIUD
COM4
SEG16 COM2
SEG15
COM1
SEG14
XPTT
SEG13
ESCL
SEG12
ESDA VOXV
SEG11
SEG10
SEG9
SEG8
TEMP
BATV
MDET
ESDA
T5V
ESCL
COM3
FLRXD
FLTXD
S5V
CLI
BOOT0
SWDIO
CSFT
SEG3
SEG7
SEG6
SEG5
SEG4
SEG17 SEG21 SEG19 SEG20 SEG23 SEG22 SEG18
KR1
KR2
KR3
DICK
KS0 KS2
BEEP
MDET
CL
CLI
+5V
IPTT
XPTT
VOXV
BATV
S5C
TXC
VDT
VCL
BEEP
AFON
POSW
CL
PWON
ATSDA
ATSCK
ATCTS
ATSQ
ATDTMF
TMUT
RFPWR
TEMP
FLRXD
ATSCK
BOOT0
LIGT
KS1 KS3
DICK
IPTT
DIUD
CSFT
CPUCLI
ATSQ
ATCTS
ATSDA
CLO
NRST
ISO1
ISO2
MIC2
MIC1
KR1
KR3
KR2
ATX
ATX
MIC1
SWDIO
SWCLK
NRST
MIC2
LIGT AFON
FLTXD
POSW
ATDTMF
TMUT
TXC
ISO1
ISO2
KS3
CLO
PWON
APCSW
S5C
CPUCLO
KR0
COM1 COM2 COM3 COM4 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
VDT VCL
RMUT
RMUT
RFPWR
+3.3V
+3.3V +3.3V
+3.3V
APCSW
CPU3V
CPU3V
CPU3V
CPU3V
CPU3V
TXFREE
COMEXP
BAND2
BAND1
FREQ2
FREQ1
EXHI
RXFREE
KEY
S405
KEY
S404
KEY
S409
KEY
S408
KEY
S403
KEY
S407
KEY
S406
KEY
S402
L1SS400
D409
VCC
+3.3V
VCC
S5V
+3.3V
+3.3V
+3.3V
+3.3V
+5V
T5V
VCC
S5V
+3.3V
+3.3V
CPU3V
CPU3V
CPU3V
CPU3V
CPU3V
+5V
T5V
VCC
S5V
+3.3V
+3.3V
+5V
T5V
(Amended page)