SB 100 - JBL Audio Service Manual (repair manual). Page 36

Read JBL SB 100 Service Manual online

A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
MAX 1.1A
close to DC/DC
close to LDO
close to DC/DC
close to LDO
+17V
POWER_ON/OFF
VCC_IN
VCC_IN
POWER_ON/OFF
17V_SENSE
STBY+5V
STBY+5V
+5V
DV+1.2V
VCC_IN
STBY+5V
STBY_3V3
+5V
DV+3.3V
VCC_AMP
DV+5V
+5V
VCC_AMP
R3
4.7K
R3
4.7K
XP2
6PIN/2.5mm
XP2
6PIN/2.5mm
1
1
2
2
3
3
4
4
5
5
6
6
C4 1uF/
25V/
Y5V
C4 1uF/
25V/
Y5V
U3
LDO_G9091-330T11U
U3
LDO_G9091-330T11U
VIN
1
GND
2
EN
3
NC
4
VOUT
5
+
220uF/35V
CE204
+
220uF/35V
CE204
R123
1K
R123
1K
C2
0.
1uF/
50V/
Y5V
C2
0.
1uF/
50V/
Y5V
R7
33K/1%
R7
33K/1%
U6
AZ1117-1.2V
U6
AZ1117-1.2V
ADJ/GND
1
IN
3
OUT
2
V-OUT
4
R2
10K
R2
10K
C31
2.2uF/10V/Y5V
C31
2.2uF/10V/Y5V
C5
10uF/
10V/
Y5V
C5
10uF/
10V/
Y5V
C34
0.1uF/50V/Y5V
C34
0.1uF/50V/Y5V
R5
100K
R5
100K
R132
51K/1%
R132
51K/1%
D2
LL4148
D2
LL4148
C150
220pF/50V/NP0
C150
220pF/50V/NP0
+
CE2
100uF/25V
+
CE2
100uF/25V
C1
0.
1uF/
25V/
Y5V
C1
0.
1uF/
25V/
Y5V
Q5
NPN_3DG3904M
Q5
NPN_3DG3904M
C8
3300pF/50V/X7R
C8
3300pF/50V/X7R
C30
4.7uF/10V/Y5V
C30
4.7uF/10V/Y5V
C312
10uF/10V/Y5V
C312
10uF/10V/Y5V
C121
1uF/25V/Y5V
C121
1uF/25V/Y5V
R4
10K
R4
10K
FB1
300/2A
FB1
300/2A
R133
30K/1%
R133
30K/1%
C3
0.01uF/50V/X7R
C3
0.01uF/50V/X7R
R127
2.2K
R127
2.2K
C11
330pF/50V/X7R
C11
330pF/50V/X7R
C313
10uF/10V/Y5V
C313
10uF/10V/Y5V
U1
EUP3482
U1
EUP3482
BS
1
IN
2
SW
3
FB
5
COMP
6
GND
4
SS
8
EN
7
FB2
300/2A
FB2
300/2A
Q2
NPN_3DG3904M
Q2
NPN_3DG3904M
Q1
P_AP2305
Q1
P_AP2305
G
D
S
R135
56K/1%
R135
56K/1%
+
100uF/25V
CE18
+
100uF/25V
CE18
C111
0.1uF/25V/Y5V
C111
0.1uF/25V/Y5V
R9
7.5K
R9
7.5K
+
CE1
100uF/25V
+
CE1
100uF/25V
C1
0
0.
1uF/
50V/
Y5V
C1
0
0.
1uF/
50V/
Y5V
R12
56
R12
56
U14
AP4435GM
U14
AP4435GM
S1
1
S3
2
S2
3
G1
4
D4
5
D3
6
D2
7
D1
8
R11
24K/1%
R11
24K/1%
FB12
70/1A
FB12
70/1A
Q7
NPN_3DG3904M
Q7
NPN_3DG3904M
R1
100K
R1
100K
U7
LDO_G9091-330T11U
U7
LDO_G9091-330T11U
VIN
1
GND
2
EN
3
NC
4
VOUT
5
R136
33K/1%
R136
33K/1%
R131
10K
R131
10K
C7
0.1uF/25V/Y5V
C7
0.1uF/25V/Y5V
C2
9
0.
1uF/
25V/
Y5V
C2
9
0.
1uF/
25V/
Y5V
R8
680K
R8
680K
C23
0.1uF/50V/Y5V
C23
0.1uF/50V/Y5V
R129
4.7K
R129
4.7K
L1
10uH/2A
L1
10uH/2A
C28
2.2uF/10V/Y5V
C28
2.2uF/10V/Y5V
C27
4.7uF/10V/Y5V
C27
4.7uF/10V/Y5V
R122
10K
R122
10K
R10
13K/1%
R10
13K/1%
C6 0.
1uF/
25V/
Y5V
C6 0.
1uF/
25V/
Y5V
Main Board Circuit Diagram for SB100:Power
7-6
7-6
JBL
SB 100 Service Manual
Page 36 of 49
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