Icom IC-R9500 Service Manual page 137

• DC-DC UNIT
J1
MPZ2012S331A X 6
B10B-EH-S
LG_PWR
R131 1K
10
R132 1K PWRS
9
8
EP131 VDD3R3VA F141 ICP-S12
7
VDD3R3VB F142 ICP-S12
EP132
TO LOGIC J802 6
EP133 VDD15V
5
EP134
4
EP135 H15V
3
EP136
2
1
J2
B08B-EH-S
8 MPZ2012S331A X 6
EP141 +15V
7
EP142
6
EP143 -12V F143 ICP-S0.5
5
TO LOGIC J801
EP144 +28V F144 ICP-S0.5
4
EP145 +3R3VA F145
ICP-S1.2
3
EP146 +3R3VB F146 ICP-S1.2
2
1
IC1 BD9851FEV
1
R10 22K
SEL1
C8 33P 2
RT
R8 15K 3
CT
10K
R9 4
NON2
R1 R2
0.0039 5
I NV2
6
22K 1K R5 C5
FB2
R4
C4 7
DTC2
C3 2.2K
1K 8
390P
PVCC2
R6 9
22 Q1 OUT2
470K 10
SSM3J112TU
EP1 PGND
L1
MPZ2012S331A
3.3U
EXCML16A270U
⇐
+3.3VA +15V
⇐
+3.3VB +15V
IC21
BD9851FEV
R30 22K 1
SEL1
C28 33P 2
R21 R22 RT
3
CT
12K 1K R28 15K 4
R24 C24 NON2
5
R29 10K
I NV2
1K 0.0012 6
FB2
C23
R25 1K 7
DTC2
C25
R26 150K 8
PVCC2
22
L23 0.015 9
OUT2
10
EP21 PGND
L22
Q21 EXCML16A270U
MPZ2012S331A EXCML16A270U
D21
SSM3J112TU
RB160L
⇐
+28V +15V
⇐
-12V +15V
VDD3R3VA
VDD3R3VB
LG_PWR
PWRS
VDD15V
H15V
+15V
L91
33U
20
GND
19
STB
18
VCC
17
VREF
16 0.0039 R11 R12
INV1
15
C15 R15 22K 1K
FB1
2.2K
14 C14 R14
SCP
C13
13 C16 1K
0.1 390P MPZ2012S331A
DTC1
22
12
PVCC1
Q12
11 R16 470K
OUT1 SSM3J112TU
D12
L11
RB551V
3.3U
Q11
SSM3J112TU
L92
33U
C95
2.2 C35
20
GND
19 22
STB
18
VCC
17
VREF
16
R31 27K
I NV1
C37 0.012
15 1K
FB1
C36 R34
14 R35
SCP
C38 0.1
13
DTC1 L32
390P 1K
12
PVCC1 R36 EXCML16A270U
D31
11
150K
OUT1
L33 RB160L
EXCML16A270U
Q31
RSR025N03
R155
+15V
10
IC151
1 8
2 7
R153
D151
3 6
4 5
3.3K 1SS355
NJM2904M
C105
C104
0.1
RL101 RL102
0.1
R103
100
Q102
BCR183T
APQ3311
APQ3311
Q101
2SK3018
IC41
BD9851FEV
R50
22K 1 20
SEL1 GND
C48 33P 2 19
RT STB
R48 15K 3 18
CT VCC
R49 10K 4 17
R41 R42 NON2 VREF
5 16
INV2 INV1
C45 0.0039
22K 1K 6 15 C55 R55
FB2 FB1
C43 R44 C44
7 14 0.0039
R45 2.2K
DTC2 SCP
1K 8 13 C56 0.1
390P D52
22 R46 PVCC2 DTC1
RB551V
9 12
Q41 OUT2 PVCC1
470K 10 11 R56 470K
SSM3J112TU
EP41 PGND OUT1
L41
Q42
3.3U
SSM3J112TU
EXCML16A270U
⇐
VDD3.3VA VDD15V
⇐
VDD3.3VB VDD15V
REG UNIT
W1
(RED)
1 3
W1
2 2
(BLACK)
3
1
W1
(ORANGE)
P1
J4
EH-8
B08B-EH-S
W1 +V
8 +V
8
FI121
7 7
4 1 +V
6
6 +V
5
5
-V
4 4 -V
3 2
3
3
-V
2 2 -V
ACM1211
1
1
J7
Q111 B2B-ZR-SM4-TF P2
MF1
2SB1132
FD124010HB-1N7
1
1
2
2
R112
Q112
2SC4081
3.3K
EP2
ZUG2206-11S
3
W3
2
1
R1
330K 0.5W
L93
33U
W2
SJ-W2F4A-03BB
R51 R52 1K
AC-N
AC-N
22K
C54 R5 4 C53
2.2K 1K
F2
W28XQ1A 5A
390P 22
AC-L
AC-L
EP51
L51
MPZ2012S331A
W4
Q51
SSM3J112TU FG
Q52 3.3U
FG
SSM3J112TU
L52
EXCML16A270U
10 - 27
EP1
PBA150F-15