Icom BC-119N Service Manual page 16

SECTION 9
9-1 BC-119N
F1
J1
FGB 2A
1
F2 F3
2
S-N5051 S-N5051
C32 C33 C10
0.01 0.001 470
46.4 µs
C43 C44 C45
0.01 0.01 0.01
R35
4.7k
Q8
2SC4081
R32
R34
22k
22k
C35 R33 R36
22 1k 22k
Q1
2SB1132
Q12
XP6501
6 5 4
R28
33k
1 2 3
R3 R53 R51
4.7k 470k 12k
C34 R29
0.01 8.2k
R1 R2
1k 1k
Q7
2SA1576
GND
RXD
C30
0.01
TXD
RESET
VDD
VPP
DS1
VRPG3349S-734
VOLTAGE DIAGRAMS
Q3 2SC4081
R7
560
D5
46.4 µs 1SS355
15.6V
8.6V
D4
R10
1SS355
560
C11
0.01
R8
560
Q4
7.9V 2SA1576
0.4V
R38 C38
22k 0.1
R43
120k
R39
560k
1
2
3
4
Q9
5
2SC4081
6
7
8
C36 C37 R37
22 0.001 56k
R48
220
IC1 NJM2870
5.15V
1 5
CTRL VIN
R52 2
GND
15k
3 4
NB VOUT
C5 R26
0.01 1.5k
C7 C8
0.01 0.01
C4 C31 R25
10 0.1 100
Q6
2SA1576
R50
47k
D2
D3
R30
DAN202K
DAN202K
1M
R31
1M
R4
100
R5
100
C1 C3
0.01 0.01
Q11
DTC144EU
D7
SB20-03P
L2
HK-08S050-2010
R9
10
Q5
UPA1890
1 8
D1 D2
R49
2 7
1k
S1 S2
Q10
3 6
S1 S2
DTC144EU
4 5
G1 G2
C25
0.01
D6
SB20-03P
C39 R40
0.01 56k
R42
10k
R41
560k
IC5 µPC494GS
16
NO-INVIN NO-INVIN
15
INVIN INVIN
14
FB REFOUT
13
DTC OC
12
CT VCC
11
RT C2
10
GND E2
9
C1 E1
11.8V
3.8V
CP4
R12
10k
C9
22
C21 C22 R27
0.01 0.01 39k
IC2
µPD789112AMC
30
1
P23 RXD
29
2
P24 TXD
3 28
P25 P20
27
4
AVDD P11
26
5
ANI0 P10
25
6
ANI1 VDD
24
7
ANI2 VSS
8 23
ANI3 X1
22
9
AVSS X2
21
10
IC0 IC0
20
11
P50 IC0
19
12
P51 RESET
13 18
P52 P03
17
14
P53 P02
16
15
P00 P01
C6
3.3V
0.1
4.915 MHz
RESET
VPP
9 - 1
ADAPTOR
C26
470
R46
1k
AD-101
R21
R44
1k
120k
BC-119
SW
BIT1
R22
BIT2 1k
BIT3
BIT4
12V BC-79
C40 C41 R45
0.01 0.1 33k
R16
10k
D8
1SS355
8 7 6 5
R11
IC4
120k
NJM12904V
1 2 3 4
R14
R15
33k
1k
C23 C27 C28
0.1 0.01 0.01
MAIN UNIT
L1
Measurement condition
0.1µH
• Input voltage: DC16 V
• While rapid charging BP-120 with AD-94 adapter.
BC-119
BC-79
BIT4
CP2
R6
4.7k
CP3
BIT3
BIT2
BIT1
AD-101
1 4
OUT VSS
2 3
VDD NC
IC3
S-80847ALNP-EEB
X1
CP1 C12 C13
CSTCR4M91G
0.01 0.1
AD-101
1 1
M1VO
2 2
BC-119
3 3
CHARGE
1 1
TEMP
TEMP.
2 2
DET.
CURR
3 3
SW
4 4
BIT1
5 5
BIT2
6 6
BIT3
7 7
BIT4
8 8
BC-79
9 9
GND
10 10
W1
OPC-1103
1
M1VO 2
3
CHARGE
4
TEMP 5
6
CURR
7
8
9
10
11
12
13
R24
0.12
R17 R20 R23
1M 120k 10k
R18 C29 R19 R47
1k 0.01 39k 4.7k
SW
C42 C14 C15 C16 C17 C18 C19 C20
0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01