Icom IC-R3 Service Manual page 47

10-3 VOLTAGE DIAGRAM
MAIN BOARD
F2 F1 F3
S-N5051 FGB 2A S-N5051
5.4 V
Q7
C7 C2 R19 C9 D2
2SJ377
0.22 470 0.15 0.22 SB20-03P
C10
R18
0.001
1 k
D6 C8 C1
SB20-03P 100 0.22
R17
680
IC2
NJM2360M
8 1
CD CS
7 2
SI ES
6 3
V+ CT
5 4
INVIN GND
R15
150 k
R23 C21
10 47
R16 C12
47 k 470
5.1 V
D4
MA132WK
J1
1
1
2
CHGOUT
2
3 DET2
3
4 BATT–
4
5 DET1
5
6 BAT+
6
5V
7
7
8 CONT
8
9 THD
9
RL1 ON: 0 V
RL1 OFF: 5.1 V
R2
ERT-D2FHL103S
5.2 V
Q1
D1 C14
R3 R21 C13
2SB1184Q
SB20-3P 0.001U
560 560 0.001
L1
HK-08S050-2010
Q6
C4 R2
DTA114EE
470 150
Q5
C15
DTA114EE
0.001
D3
MA2S111
DS1
C3
VRPG3349S-734
470 P
R6
120 k
G R
B R5
C6
10 k
0.1
CP1
C5
0.01
C36
4.7
3.0 Vpp
CHG ON
IC1
1.77 ms
MM1433EVBE CHGOUT
CHG OFF 0.5 Vpp
DET2
BATT–
DET1
BATT+
R9 5V
CONT
220 k
R14
THD
100 k
R11 R12
12 k 2.7 k
Q3 C18
0.1
UN9214
C19 C20
CHG ON: 1.2 V
R22
0.1 0.001
CHG OFF: 0 V
Q2 56 k
DTA114EE
Q4
D5
DTA114EE
DWA010
Q8
DTC114EE
WS2
TANSHI BOARD
R1
0.15
SBATT+
SBATT–
DET1
RL1
A-5W-K
BATT+
D1 C1
BATT–
1SS53 0.047
DET2
10 - 2
C22
0.1
C23
0.001
C24
0.1
C25
0.001
C26
0.1
C27
0.001
C16
0.15
1
2
3
4
5
6
7
8
9
C28
0.1
C29
0.001
C30
0.1
C31
0.001
C32
0.1
C33
0.001
C34
0.1
C35
0.001
CP1
CP2
CP3
CP4
CP5
CP6