Icom IC-R6 Service Manual page 31

SECTION 10. VOLTAGE DIAGRAM
LOGIC UNIT (1/2)
SEG27
SEG26 65
66
SEG25
SEG24 67
SEG23 68
SEG22 69
SEG21 70
71
SEG20
72
SEG19
SEG18 73
SEG17 74
SEG16 75
SEG15 76
77
SEG14
SEG13 78
SEG12 79
SEG11 80
SEG10 81
82
SEG9
SEG8 83
SEG7 84
SEG6 85
SEG5 86
87
SEG4
88
SEG3
SEG2 89
SEG1 90
SEG0 91
92
COM3
93
COM2
COM1 94
COM0 95
96
FSET R8 47k 97
98
TRAC R9 47k
99
100
101
C2
102
0.1
0.001 C5
0.001 C6
0.001 C7
0.001 C8
0.001 C9
0.001 C10
0.001 C11
0.001 C526
R545
100k
R546
100k
+3.3CPU
BLM15BD102SN1
EP1
S6 2 DCK
A
3
B EP2
1
DUD
COM
BLM15BD102SN1
TP90N00E20
JPM1990
SW-149
C46 C47
S9
S10
C48
C49
0.001
0.001
0.001 0.001
S7 S8
[MODE] [PWR]
[FUNC]
R543
10k
R544
10k
*R2 *R4 *R6
*R3 *R5 *R7
R24 R25 C31 C29
100 100 0.001 0.001
MMZ1005Y102C T
EP17
TEST2
TEST1
X1
CSTCE12M2G52
38
37
36
35
34
C518
33
32 1
31
30
29
28
27 R548
26
0
IC1
25
UPD78F1508GF
24
23
22
21 C524
20 1
19
18
17
16
15
14 CLIN
13 EBUSY
12
11
10
9
8
7
6
5
4
3
2
1
RESET
FLMD0
TOOL0
TOOL1
RESET
R400 I FCON
1k
R553 EP19 EP21
2.2k
EP20
MMZ1005Y102C T
R36 MMZ1005Y102C
R19
1k T MMZ1005Y102C
47k
R44
1k
R52
120k
S1
KEY
S2
R49
390k
KEY
S3
R50
K1
3 . 2 6 V
150k
KEY
C34
IC100
C103
0.001 1 8
S4
2 7
1
3 6
R53
120k 4 5
KEY
S5 TC7W04FU
R51
K2
330k
KEY C35
0.001
C101
C100
1
68P
10 - 1
3 . 3 3 V
+3.3CPU
VR_DATA
VR_CLK
CP10S
CP5
CP10S
CP6
Q1
LDTC144EE
C12
CLS
DS1
18P
C13 TAK-35455
0.01
O N : 3 . 3 2 V
O F F : 0 . 0 0 V
+3SC
PCON
C521 1
C522 1
C523 1
AF_FIL
R33 1k DBL1
R31 1k SHIFT
R111 1k ATT
CLOUT
AMUTE
R41 47k
R42 1k
TCON
R43 1k CHGC
ECK
ESIO
IODATA
IOEN
IOSTB
IOCK
+3SC
R39 1k PCON
R34 1k DBL2
R509 1k PPS
TCON
R21
1k PCK
R22
1k PSTB
R23 1k PDAUL
TEMP
EP22
BEEP
T MMZ1005Y102CT
BEEP
NOISE
AFON
AMUT E
VP
3 . 2 6 V
3 . 2 3 V
R504
D504
IC452
1 8
Q503 18k 1SS400
2 7
2SA1832
3 6
R505
4 5
18k
TC7W04FU
Q504
2SC4738
9 . 3 9 V
6 . 3 3 V 1 2 . 5 V 1 5 . 5 V
1 5 . 0 V
2SC4738
Q100
C106 C108 C110
VP
1 1 1
C115
0.22
1 5 . 5 V
D100 D101 D102
D103
1SS372 1SS372 1SS372 1SS372
C114 C402
C104 C107 C109
2.2 MSVA
0. 1
1 1 1
4 . 7 7 V 7 . 8 1 V 1 0 . 9 V 1 3 . 7 V
2.99V
C116
0.1
3 . 3 3 V
IC2
1 8
A0 VCC
2 7
A1 WP R54
3 6
A2 SCL
4 5
VSS SDA R55
R1EX24256ASA00A
ESIO
ECK
VR_STB
R525
390k
C453
33
SPV
Q511
LDTC144EE
O N : 0 . 5 3 V
O F F : 0 . 0 1 V Q507
SSM3K01T
SP-OUT1
VOUT1
5
VCC
6
R526 GND
7
EP16 VOUT2
8
BLM15BD102SN1
470k
1SS400
D505
EXT-SP
SP-OUT2
J2
EP11
MMZ1608Y121BT
INT-SP
R551
R538
33k
470
C28
0.001
*: Refer to the PARTS LIST for the value and name of component.
+3S
2SA1832
Q102
470k
R104 C120
0.001
LOGIC3.3V
3 . 3 3 V
1 5
OUT CD
2
VDD
3 4
VSS NC
IC3
C43
R3112N281A
0.01
100k
10k
R403
AFON
150k
220k
R401
TS4990IST
VIN-
4
VIN+
3
BYPAS S R527
2
STANDBY
1
0
IC450