JBL MEDIA 3 Service Manual ▷ View online
8
7
6
5
4
3
2
9
L
M
A
B
C
D
E
F
G
H
I
J
K
L
M
K
J
I
H
G
F
E
D
C
B
A
1
1
2
3
4
5
6
7
8
9
N
N
12
Media 3 Schematic Diagram
MASTER & SLAVE SPEAKER SYSTEM
Media 3
IC4
TDA1552Q
5V
16.5V
2.2V
2.2V
2.2V
2.2V
7.3V 8.0V
8.0V
8.0V
8.0V
7.3V
7.3V
7.3V
0.0V
0.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
0.0V
15.34V
16.5V
10.0V
10.0V
+11.2V
15.3V
6.4V
Test voltages are printed in orange.
voltages are
displayed in boxes. Other voltages
shown are for
shown are for
due
to the Auto On/Off function.
OperationalMode
Stand-by Mode
8
7
6
5
4
3
2
9
A
B
C
D
E
F
G
H
I
I
H
G
F
E
D
C
B
A
1
Media 3 Schematic Diagram
MASTER & SLAVE SPEAKER SYSTEM
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
0.0V
15.34V
16.5V
10.0V
10.0V
L
M
F
G
H
I
J
K
L
M
K
J
I
H
G
F
1
2
3
4
5
6
7
8
9
N
N
12
Media 3 Schematic Diagram
Media 3
IC4
TDA1552Q
5V
16.5V
2.2V
2.2V
2.2V
2.2V
7.3V 8.0V
8.0V
8.0V
8.0V
7.3V
7.3V
7.3V
0.0V
0.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
10.0V
+11.2V
15.3V
6.4V
Test voltages are printed in orange.
voltages are
displayed in boxes. Other voltages
shown are for
shown are for
due
to the Auto On/Off function.
OperationalMode
Stand-by Mode
L
M
F
G
H
I
J
K
L
M
K
J
I
H
G
F
1
2
3
4
5
6
7
8
9
N
N
12
Media 3 Schematic Diagram
Media 3
IC4
TDA1552Q
5V
16.5V
2.2V
2.2V
2.2V
2.2V
7.3V 8.0V
8.0V
8.0V
8.0V
7.3V
7.3V
7.3V
0.0V
0.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
5.5V
5.5V
5.5V
5.5V
5.5V
5.5V
10.0V
10.0V
+11.2V
15.3V
6.4V
Test voltages are printed in orange.
voltages are
displayed in boxes. Other voltages
shown are for
shown are for
due
to the Auto On/Off function.
OperationalMode
Stand-by Mode