Icom IC-A220 Service Manual

9-1g
The underlined parts have been updated from the previous version of the addendum, or the original pages.
(Amended page)
July 2019
SECTION 9 VOLTAGE DIAGRAM
0.01
C78
47k
R45
47k
R72
47k
R90
12P C27
0.1
C16
0.01
C45
SHORTLAND
CP1
C2
15/20V
0.1
C13
0.001
C73
TA78L05F
IC16
I O
G
0.1
C34
47k
R46
06FLZ-SM2-TB
J3
1 2
3 4 5 6
7 8
0.1
C35
12P
C28
0.027
C30
0.01 C42
0.1
C38
1kR141
22k
R60
22k
R61
0.1C12
4.7k
R127
47k
R23
0.01
C31
1kR135
0.1
C46
47kR52
0.01
C81
22k
R63
0.001C58
47k
R104
47kR76
100kR123
CP10S
CP16
47k
R71
100kR124
47k
R119
47k
R73
2.2MR38
0.01
C41
40FLZ-SM2-R-TB
J5
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
47k
R114
DTA113ZU
Q4
2SC4215
Q6
0.001
C83
0.01 C43
NJU6060V
IC15
1
VDD
2
RSTb
3
CSb
4
CLK
5
DATA
6
OSC
7
VSS
8
LED1
9
LED2
10
LED3
L1
39U
0.01 C17
0.01C40
0.001
C32
47k
R44
0.001
C61
C77
1/16V
4.7k
R128
0.001
C63
390
R88
22k
R62
390 R47
SN74LVC4245ADBR
IC7
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
OE
23
VCCB
24
VCCB
2.2 MSVA
C23
BH1620FVC
IC9
1
VCC
2
GND
3
GC1
4
GC2
5
IOUT
SHORTLAND
CP2
100k
R77
15
R83
C44
3.3/10V
NJM2370U1
IC2
1
CTRL
2
GND
3
NB
4
VOUT
5
VIN
SN74LVC4245ADBR
IC6
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
OE
23
VCCB
24
VCCB
DTA113ZU
Q5
0.001
C70
0.01C47
22FLT-SM2-TB
J6
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
33k
R69
0.001
C67
0.01
C53
0.001
C74
47k
R70
10k
R26
100
R91
DTA113ZU
Q7
0.1
C82
47k
R116
0.01
C86
47k
R8
390
R48
100k
R5
HD64F38347WV
IC4
1
P10/TMOW
2
P11/TMOFL
3
P12/TMOFH
4
P13/TMIG
5
P14/IRQ4/ADTRG
6
P15/IRQ1/TMIC
7
P16/IRQ2
8
P17/IRQ3/TMIF
9
X1
10
X2
11
VSS
12
OCS2
13
OSC1
14
TEST
15
RES
16
P20/SCK1
17
P21/SI1
18
P22/SO1
19
P23
20
P24
21
P25
22
P26
23
P27
24
P30/PWM
25
P31/UD
26
P32/RESO
27
P33/SCK31
28
P34/RXD31
29
P35/TXD31
30
P36/AEVH
31
P37/AEVL
32
CVCC
33
VSS
34
V3
35
V2
36
V1
37
V0
38
VCC
39
PA3/COM4
40
PA2/COM3
41
PA1/COM2
42
PA0/COM1
43
P50/WKP0/SEG1
44
P51/WKP1/SEG2
45
P52/WKP2/SEG3
46
P53/WKP3/SEG4
47
P54/WKP4/SEG5
48
P55/WKP5/SEG6
49
P56/WKP6/SEG7
50
P57/WKP7/SEG8
51
P60/SEG9
52
P61/SEG10
53
P62/SEG11
54
P63/SEG12
55
P64/SEG13
56
P65/SEG14
57
P66/SEG15
58
P67/SEG16
59
P70/SEG17
60
P71/SEG18
61
P72/SEG19
62
P73/SEG20
63
P74/SEG21
64
P75/SEG22
65
P76/SEG23
66
P77/SEG24
67
P80/SEG25
68
P81/SEG26
69
P82/SEG27
70
P83/SEG28
71
P84/SEG29
72
P85/SEG30
73
P86/SEG31
74
P87/SEG32
75
P90/SEG33
76
P91/SEG34
77
P92/SEG35
78
P93/SEG36
79
P94/SEG37/M
80
P95/SEG38/DO
81
P96/SEG39/CL2
82
P97/SEG40/CL1
83
P40/SCK32
84
P41/RXD32
85
P42/TXD32
86
P43/IRQ0
87
AVCC
88
PB0/AN0
89
PB1/AN1
90
PB2/AN2
91
PB3/AN3
92
PB4/AN4
93
PB5/AN5
94
PB6/AN6
95
PB7/AN7
96
PC0/AN8
97
PC1/AN9
98
PC2/AN10
99
PC3/AN11
100
AVSS
C4
15/20V
100kR125
47k
R134
CP06S
CP18
10k
R113
47k
R57
0.01
C3
0
R122
*R142
47k
R115
390
R21
0.01
C54
1kR139
47kR51
33k
R66
1M
R43
100k
R93
BD5242G
IC3
1
OUT
2
VDD
3
VSS
4
NC
5
CD
0.01
C1
33k
R65
47
R101
0.01
C85
SHORTLAND
CP3
390
R49
C9
10/16V
CP06S
CP19
CP10S
CP14
TC7SHU04FU
IC18
1
2
3
4
5
0.1
C37
33k
R68
0.001
C64
C49
10/16V
0.001
C71
1k
R121
C52
10/16V
47kR50
0.1
C36
C55
10/16V
47k
R35
C51
10/16V
100
R117
47k
R37
910k
R9
0.01
C39
9.8304 MHZ
X1
CP06S
CP4
0.001
C80
24LC64T
IC5
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
ADM202EARUZ
IC10
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
T2OUT
8
R2IN
9
R2OUT
10
T2IN
11
T1IN
12
R1OUT
13
R1IN
14
T1OUT
15
GND
16
VCC
2.2MR74
390
R89
47k
R36
10
R120
15k
R22
2.2MR126
33k
R67
330k
R10
0.001 C79
0.001
C62
0.001
C75
47k
R7
47k
R20
1k
R118
0.1
C33
1kR140
SHORTLAND
CP5
22k
R64
0.001
C66
NNCD6.2G
D4
1 2 3
4 5
0.01 C60
LMV321IDCK
IC13
1
2
3
4
5
0.01
C87
47k
R31
47kR58
47kR59
47kR80 47k
R81
47k
R78
47kR82 47kR79
1k
R132
0.01
C11
1k
R133
330
R97
LS35J2
S4
0.01 C10
330 R86
LS35J2
S5
SML-512MW DS8
SML-512MW
DS7
0.01
C14 100k
R19
100k
R12
100
R6
0.01C21
0.01
C15
0.01
C19
100k
R102 100k
R13
EC11EAB24C
S1
1
COM
2
A
3
B
4
COM
5
A
6
B
7 8
0.01
C22
0.01
C18
0.01C20
10k
R14
10k
R99
100k
R98
10k
R103
10k
R11
0.01
C50
LS35J2
S2
0.01
C7
SML-512MW DS9
330
R85
330
R100
SML-512MW
DS10
1k
R130
0.01
C8
1k
R131
LS35J2
S6
LS35J2
S3
1k
R129
SML-A12MT DS3 SML-A12MT DS4 SML-512MW DS6 SML-512MW DS5 SML-512MW DS2 SML-512MW DS1
2.2kR40
470kR75
CP06S
CP17
10FLT-SM2-TB
J4 1 2 3 4 5 6 7 8 9 10
0.01
C76
CP10S
CP15
0.001
C72
0.01
C59
TC7S00FU
IC17
1
2
3
4
5
TC7S04FU
IC14
1
2
3
4
5
TC7S08FU
IC12
1
2
3
4
5
TC7S08FU
IC11
1
2
3
4
5
0.001
C68
1kR136 1kR137 1kR138
DO1 DO2 DO3 DO4 DO5 DO6 DO7 DO8 DO9 DO10 DO11 DO12 DO13 DO14 DO15 RSTB WRB RDB CSB A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D0
D9
D10 D11 D12 D13 D14 D15
D1
D8
D7
D6
D5
D4
D3
D2
D1
D0
PTT1_O
RXD31 TXD31
DO15
DO14
DO13
DO12
DO11
DO10
DO9
DO8
DO7
DO6
DO5
DO4
DO3
DO2
DO1
DO0
INCOM_O
PHOTO
MONI
EXGP1 EXGP2 EXGP3
RXD31 TXD31
EXGP0
INCOM_O
TXD32
B
RXD32
C
REM_O
REG_C2
RSSI VOX2 VOX1 PRT/UL NOISE
BPOUT REG_C2 PTT1_O
CLK_IC12
DATA_IC11
DO0
PHOTO
SELA
SELB
SELC
SELD
SELA
SELB
SELC
SELD
B
A
VR
PRT/UL
VOX2 VOX1
NOISE
RSSI
REM_O
BPOUT
EXGP3 TXD32 EXGP0 RXD32 EXGP2 EXGP1
A0
CSB
RDB
WRB
RSTB
MONI
CDC
DATA_IC11
CLK_IC12
A
C
1MA
1MB
25KA
25KB
1MB 1MA 25KB 25KA
RCL
MEM
SWAP
EC
DUAL
MEM
RCL
SWAP
EC
DUAL
VR
5C
TO EL DISPLAY
JTAG3
JTAG2
GND
TO ONCHIP
EMULATOR
SEL C
SEL BSEL A
SEL D
DAIAL BLVR BL
CLK DATA
16V 16V
3C
5C
5C
RESET
5C
5C
5C
5C 5C 5C
PONPON
5C
10C
10C
3C
5C
SDA SCL
ECDUAL RCLMEM
JTAG1
JTAG4
FW1/JTAG3
FW2/JTAG2
TXD32
RXD32
RESET
DIAL
CSDM
CSDM
C
A
TO
MAIN UNIT
1.9 V
10.3 V
4.9 V
15.9 V
3.2 V
RX: 4.9 V
TX: 0.1 V
Key backlight ON : 4.9 V
Key backlight OFF: 0 V
Key backlight ON : 4.8 V
Key backlight OFF: 0 V
Key backlight ON : 4.9 V
Key backlight OFF: 0 V
Explanatory notes
Voltage Line (16V)
Voltage Line (10V)
Voltage Line (3.3V/3V)
Voltage Line (5V)
1K
R2
100
R3
VOLUME
UNIT
To FRONT UNIT J3
0.01
C2
0.01
C1
0.001
C3
0.001
C4
06FLZ-SM2-TB
J1
1
2
3
4
5
6
78
TP76N00NA
R1
1
2
3
4
5
6
7
MONI
PON
VR
5V
• FRONT UNIT (for IC-A210 and IC-A210E)

Icom IC-A220 Specifications

General

Brand	Icom
Model	IC-A220
Category	Transceiver
Language	English