Icom IC-A210 Service Manual page 137

(Amended page)
August 2015
VOLTAGE DIAGRAM
FRONT UNT
To VOLUME UNIT J1
J3
7 8
PON
C35
0.1
IC10
C36
1 16
C1+ VCC
2 15
0.1 V+ GND
3 14
C1- T1OUT
4 13
C2+ R1IN
5 12
C2- R1OUT
C37
6 11
V- T1IN
7 10
0.1 T2OUT T2IN
8 9
R2IN R2OUT
D4
ADM202EARUZ
NNCD6.2G
IC17 IC12
1 5 1
2 2
3 4 3
TC7S00FU TC7S08FU
IC11
IC14 1
1 5 2
2 3
3 4
TC7S08FU
TC7S04FU
5C
0
R122
IC15
R101 47 1 10
VDD LED3
R10 2 9
RSTb LED2
CSDM 330k 3 8
CSb LED1
CLK_IC12 4 7
CLK VSS
DATA_IC11 5 6
DATA OSC
NJU6060V
Q4
R91
3.3M
IC9
5
3
R93
PHOTO 4
1
100
2
NJU7008F3
VOLUME
R3
VR
UNIT
100
R2
5V
1K
2
1
1
PON
2
3
3
R1
4
4
5
5
6
6
DAIAL BL
MONI
7
TP76N00NA
J 1
16V 16V
PON
10C
R83
15
CP17
RXD32 CP06S
CP15 CP10S
5 IC16 TXD32
TA78L05F
4
10C 5C
I O
G
5
4
5C
Q5
DTA113ZU
Q6
2SC4215
Q7
DTA113ZU
DTA113ZU
5C
TO ONCHIP
EMULATOR
5C CP4 CP06S
RESET CP18 CP06S
JTAG2 CP14 CP10S
JTAG3 CP16 CP10S
GND CP19 CP06S
5C
R12 100k
R13 100k
R98 100k
R102 100k
VR BL R19 100k
27
J5
41
R5
100k
IC2
1 5
CTRL VIN
2
GND
3 4
3C
NB VOUT
C46
NJM2370U1
0.1
5C
R40
2.2k
EC 1
DIAL 2
3
MONI 4
R35 47k 5
R36 47k 6
IC18 PTT1_O 7
TC7SHU04FU R119 47k 8
1 5 9
L1 R43
2 10
3 4 11
39U 1M
12
X1 CR-789A 13
9.8304MHZ 14
*R142
15
R50 47k 16
R51 47k 17
R52 47k R135 18
REG_C2 1k 19
FW1/JTG3 20
JTG1 21
22
FW2/JTG2
23
JTG4
24
INCOM_O
25
R26
IC3
10k
1 5
OUT CD
2
VDD
4
3
VSS NC
BD5242G
RESET
FW2/JTG2
FW1/JTG3
JTG1
JTG4
5C
EC
DUAL
MEM
RCL
SWAP
S2 S3
LS35J2
S6
LS35J2
<-->
RCL
TO EL DISPLAY
42
75
P10/TMOW P90/SEG33
74
P11/TMOFL P87/SEG32
73
P12/TMOFH P86/SEG31
72
P13/TMIG P85/SEG30
71
P14/IRQ4/ADTRG P84/SEG29
70
P15/IRQ1/TMIC P83/SEG28
69
P16/IRQ2 P82/SEG27
68
P17/IRQ3/TMIF P81/SEG26
67
X1 P80/SEG25
66
X2 P77/SEG24
65
VSS P76/SEG23
IC4 64
OCS2 P75/SEG22
HD64F38347WV (AX-2974A-8) 63
OSC1 P74/SEG21
62
TEST P73/SEG20
61
RES P72/SEG19
60
P20/SCK1 P71/SEG18
59
P21/SI1 P70/SEG17
58
P22/SO1 P67/SEG16
57
P23 P66/SEG15
56
P24 P65/SEG14
55
P25 P64/SEG13
54
P26 P63/SEG12
53
P27 P62/SEG11
52
P30/PWM P61/SEG10
51
P31/UD P60/SEG9
5C
IC5
R113
1 8
A0 VCC
2 7
A1 WP 10k
3 6
A2 SCL
4 5
VSS SDA
24LC64T
SEL A SEL B
S4 S5
LS35J2 LS35J2 LS35J2
EC
MEM DUAL
3C
IC7
1 24
VCCA VCCB
2 23
DIR VCCB
3 22
D15
A1 G
4 21
D14 DO15
A2 B1
5 20
D13 DO14
A3 B2
6 19
D12 DO13
A4 B3
7 18
D11 DO12
A5 B4
8 17
D10 DO11
A6 B5
9 16
D9 DO10
A7 B6
10 15
D8 DO9
A8 B7
11 14
DO8
GND B8
12 13
GND GND
TC74LVX4245FS
IC6
1 24
VCCA VCCB
2 23
DIR VCCB
D7 3 22
A1 G
D6 4 21 DO7
A2 B1
D5 5 20 DO6
A3 B2
D4 6 19 DO5
A4 B3
D3 7 18 DO4
A5 B4
D2 8 17 DO3
A6 B5
D1 9 16 DO2
A7 B6
D0 10 15 DO1
A8 B7
11 14 DO0
GND B8
12 13
GND GND
TC74LVX4245FS
D8
D7
D6
D5
D4
D3
D2
D1
D0
SIGN339 22k R60 A0 A0
SIGN340 22k R61 CSB CSB
SIGN341 22k R62 RDB RDB
SIGN342 22k R63 WRB WRB
SIGN343 22k R64 RSTB RSTB
SELA
SELB
SELC
SELD
CDC
C
B
A
CLK_IC12
DATA_IC11
SEL C SEL D
*Refer to "PARTS LIST."