Icom IC-A25N, Service Manual

Page: 84 / 90

9-8
TX Line
RX Line
Voltage Line
Explanatory notes
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
C
ONTROL
V
IN
G
ND
V
OU
T
N
C
GND
LED0
LED1
LED2
RST#
PIO[6]
PIO[14]
PIO[8]/NC
USB_P
USB_N
PIO[10]
PIO[11]
PIO[9]/NC
GND
VBAT_SENSE
VBAT
CHG_EXT
VREGENABLE
VBUS
PIO[28]/QSPI_FLASH_IO[3]
PIO[21]/QSPI_FLASH_CLK
GND
MIC_LN
MIC_LP
MIC_BIAS_A
MIC_BIAS_B
MIC_RN
MIC_RP
SP_RN
SP_RP
SP_LN
SP_LP
CAP_SENSE1
CAP_SENSE3
CAP_SENSE4
GND
GND
PIO[0]
PIO[1]
PIO[2]
SPI_CLK
GND
PIO[5]
PIO[4]
PIO[3]
SPI_MOSI
SPI_MISO
SPI_CS#
UART_RX
UART_TX
UART_RTS
UART_CTS
PIO[15]
PIO[7]
PIO[12]
PIO[13]
GND
PIO[23]/QSPI_FLASH_CS#
PIO[25]/QSPI_FLASH_IO[0]
PIO[27]/QSPI_FLASH_IO[2]
1.35V
PIO[22]/QSPI_SRAM_CLK
PIO[26]/QSPI_FLASH_IO[1]
PIO[24]/QSPI_SRAM_CS#
PCM_SYNC
PCM_OUT
PCM_CLK
PCM_IN
CAP_SENSE0
CAP_SENSE2
CAP_SENSE5
GND
AIO[0]
AIO[1]
1.8V
VDD_PADS
VSS
VSS
VDD_PRPH_OUT
VSS
VSS
VSS
VSS
I2C_SDA
I2C_SCL
VDD_BKUP_BAT_IN
NC
VSS
VSS
VSS RF_IN
VSS
VSS
VSS
VDD_BKUP_IN
VSS
GPIO0
VSS
VSS
VSS
UART0_RX
UART0_CTS
VSS
UART0_T X
VSS
VSS
VSS
NRST
BOOT_MODE0
VDD_IO_HOST
GPIO1
VIN
VSS
ON/OFF NC
VOUT
A1
A2
A3
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
C1
C2
C3
C4
C5
C6
C7
TXC
PCON
PTT
PWSW
RSSI
SBATT2
VIN
VORON
BATDATA
BEEP
CLONE
DCIN
INTPTT
EMBI
DETO
JACKDET
LVIN
NOISE
CHGC
CHGIH
VORDET
PWRBTN
PATMP
RFDETV
VOLCLK
VOLDATA
UNLK
PSTB
PDATA
PCK
RFSTB
SCK
SDATA
OE
DA1STB
DA2STB
AGCOFF
BTMICSW
SPMUTE
AFC
VOX
+3V
*IC39
CD
VSS
MR VOUT
VDD
VIN
VSS
ON/OFF NC
VOUT
J1
*C630
*R856
*R857
*R858
*R859
*R860
*R861
*R862
*C633
*C637
*C638 *C639
*C640
*C641 *C642
*Q5
*R3
CP06S
CP1
CP06S
CP5
*C18 *C21
CP06S
CP6
*R28
*EP4
*C16
CP06S
CP4
*IC30
1
2
3 4
5
*EP9
*EP3
*R864
*R865
*Q17
*R866
*R868
*R869
*C7
*C5
*C6
*C645
*R871
*R86
3
*C648
*C649
0.
1
C31
*IC31
1
2
3
4
5
*IC32 1
2
3
4
5 *C650
*R962
*R879
*R874
*R875
*C652
*C653
0.001 C68
9
*R945 *R946
*C694
*C634
*C632
*C643
*C631
*Q16
*R867
*IC17
E7
E6
E5
E4
E3
E2
E1
D7
D6
D5
D4
D3
D2
D1
0.
1
C25
0.001
C701
0.
1
C687
0
R937
*R1059
*R1060
0
R595
CP06
S
CP
7
CP06
S
CP
8
1
2
3 4
5
*C704
*C705
*C703
*R106
3
*R1077
*D46
*J3
*MP1
1 2
*C709
L1SS400
D34
*R947
*R873
*C651
*C2
*C1
NJ
M2836DL3
IC40
1 2 3 4 5
10
C688
0.0047
C71
8
0.0047
C719
CP06S
CP16
CP06
S
CP
2
CP06
S
CP
3
CP06
S
CP
9
CP06
S
CP10
CP06S
CP
11
CP06
S
CP12 CP06
S
CP13
CP06S
CP15
*C722
*R1092
*R1093
0.00
1
C725
*IC1
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
45
44
43
42
41
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
BT_MISO
BT_MOSI
BT_CSB
HOPC
GPS_RE
S
BT_CLK
BT_DEMP
CPU_DEMP
BTTEST
GPS_TX
D
GPS_RX
D
5VL
BT3V
BTTXD
BTTX
D
FINED
RESET
GPSC
BT_SW
VCC
VCC
RFDETV
PCON
BTAF
BTAF
BTMIC
H_PTT
BTRXD
BTRX
D
HV
+3V
5VL
VCC
VCC
5.0 V
5.0 V
6.7 V 5.0 V
POWER ON: 3.3 V
POWER OFF: 0 V
GPS Set (in the Menu)
ON: 3.3 V
OFF: 0 V
*IC-A25N only
GPS Set (in the Menu)
ON: 3.3 V
OFF: 0 V
*IC-A25N only
• LOGIC-1 UNIT (2/2)
*Refer to the PARTS LIST for the value and name of component.