Read JBL MEDIA SUB Service Manual online
12
K
J
I
H
G
F
E
D
C
B
A
L
M
N
0
1
2
3
4
5
6
7
8
P
8
7
6
5
4
3
2
1
9
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M
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J
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9
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Media Sub Schematic Diagram
POWERED SUBWOOFER
Media Sub
IC103
STK4024 II
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
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
-20.1V
+20.1V
+20.4V
-1.3V
-1.3V
-22.4V
+22.2V
-22V
-1.35V
-1.34V
-22.6V
+22.4V
5.6V
5.61V
0.0V
0.0V
0.0V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
-1.2V
-1.27V
-21.8V
-21.7V
-13.5V
+21.9V
+0.5V
+0.5V
-22.4V
AC
17.7V
AC
17.7V
+22.3V
+11.0V
1.3V
0.47V
7.14V
7.14V
2.47V
2.48V
2.48V
0V
5.9V
6.10V
6.3V 7.25V
4.8V
1.36V
1.36V
12.1V
12.1V
12.1V
12.1V
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