Icom IC-F4261DT Service Manual page 98

SECTION 11. VOLTAGE DIAGRAM
• FRONT UNIT
EMER
30
CCS
29
CIRQM
28
CSI
27
CSO
26
CCK
25
OPT3
24
OPV3
23
TLED
22
RLED
21
20
MDET
19
VCC
18
17
5.00V
+5V
16
15
CLO
14
RES +5V
13
FSCL
12
FSDA
11
IEPTT
10
D701 PTTI IC702
9
DA271010 KR 1 SO 16
8 CS0
CLI FSCL 2 SCL 15
7 CS1
FSDA 3 SDA 14
6 CS2
CF20 LRES AFON 4 D0 13
5 VDD
EPTT EPTT LIGH 5 D1 12
4 D7
AF SPCON 6 D2 11
3 D6
CP701 MCIN MCON 7 D3 10
2 D5
8 GND 9
1 D4
M62320FP
J701
IC703
1 SO
CS0
FSCL 2 SCL
CS1
FSDA 3 SDA
CS2
KS0 4 D0
VDD
KS1 5 D1
D7
KS2 6 D2
D6
KS3 7 D3
D5
8 GND
D4
M62320FP
+5V
S701 S705
1 2
KEY KEY
5.00V R703
100k
S702 S706 S710
5
4
KEY KEY
R704
100k
S703 S707 S711
8
7
KEY KEY
R705
100k
S704 S708 S712
0
*
KEY KEY
R706
100k
9 10
1
2
3
4
TC7WBD125AFK
Q713
LDTC144EE
Q714
LDTA144EE
*R714
IC704
Simple 1 5
GND NC
Multh 2
VIN
3 4
Select
VOUT NC
16 S-812C30AMC
15
14 TX 5.00V
13
RX
12
11 Q704
10 LDTC144EE
9
CP706
CP15S
TX 0V
RX 5.00V
S709 S713
3 P0
KEY KEY
KS3 KS3 7.50V
VCC
S714
P1
6
KEY KEY
KS2 KS2
DA271010
R721
AFON
D704 10k
S715
9
P2
KEY KEY
Q703
LDTC144EE
KS1 KS1 SPCON
7.50V
AF
S716
LIGHT ON 7.50V
VCC Q701
LDTC144EE LIGHT OFF
P3
#
KEY KEY LIGH
Q705
KS0
DTA114EU
D702
DTB123EK
KR
Q702
DAP222
LIGHT ON 5.00V
D703
LIGHT OFF 0V
LIGHT ON 0V
DAP222
LIGHT OFF 7.50V
11 - 1
+5V +5V
+5V
*EP701
*R749
R722 FSDA
IC709
0
8
OE1 VCC
7
A1 OE2
6
B2 B1
5 R717 FSCL
GND A2
0
CCS *R746
*R743
CIRQM
CSI *R701
CSO
CCK
LRES
OPT3
OPV3
+5V
+5V TX 5.00V
RX 0V
DA271010 LDTA144EE
MCON
D705
Q710
R733
PTTI
100k
TX 5.00V
Q709
LDTC144EE
RX 0V C731
0V
R734 220P
100k R741
C740
PTTI 6 Q708
7
MCIN
33k 0.1
5
NJM12904R
IC705
R742
C741
0.1
100k
22k R727
100
R738
8
V+ IC705
GND
4
NJM12904R
2SB1132
Q707
R747
10k
R752
R744
10k
R745
R753
10k
100k
R748
R728
10k
4.7k
NJM12904R
IC705
3
R729 R739
1
2
15k 15k
0V
C735 390P
R740
LIGHT ON 7.50V
LIGHT OFF 0V 100k
*IC701
1 20
P3_5/SSCK/SCL P3_4/SCS/SDA
2 19
P3_7/CNTRO/SSO P3_3/TCIN/INT3
3 18
RESET P1_0/KI0/AN8
4 17
XOUT/P4_7 P1_1/KI1/AN9
5 16
VSS/AVSS P4_2/VREF
6 15
XIN/P4_6 P1_2/K12/AN10
7 14
VCC/AVCC P1_3/K13/AN11
8 13
MODE P1_4/TXD0
9 12
P4_5/INTO/RXD1 P1_5/RXD0/CNTR01
10 11
P1_7/CNTR00 P1_6/CLK0/SSI01
*R762
EMER
5.00V
+5V
TX 0V
RX 5.00V
Q712
RLED 1
2
MC701 TLED 3
DMC561040
TX 5.00V
EM6027P
RX 0V
EMIC
EPTT
CLO R766
47
CLI 47 R767
RES R768
1k
MDET 1k R769
VCC R770
PRG21BC4R7MM1RA
7.50V
Q711
LDTC144EE
R760 1k
INSP-
INSP+
IC706
20 1
VCC1 GND1
19 2
NC NC
18 3
OUT1- OUT1+
56k 17 4
IN1- MODE
16 5
IN1+ SVRR
15 6 C759 SP+
IN2+ SELECT
14 7 68
IN2- NC
13 8
C760
OUT2- OUT2+
12 9
68
NC NC
11 10
VCC2 GND2
TDA8547TS
C761
SP-
68
C762
68
*: Refer to the PARTS LIST for the value and name of component.
*R783
*R771 *R777
*R774
13 8
NC ZOUT
14 7
VS COM
15 6
*IC708
VS COM
16 5
NC COM
17
*R772
ACCELEROMETER
*C779
*R786 *R787
S717
EVQ-PUL
R773
5
330
R775
4
1.5k
INSP-
14
INSP+
13
12
EMIC
11
EPTT
10
CLO
9
CLI
8
RES
7
6
MDET
5
VCC
4
SP+
3
SP-
2
1 J704