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IC Block Diagrams
IC001 < Audio AMP.> LA42072-E
Standby
5
Input amplifier
2
IN1
Ri=
20kΩ
PRE
3
GND
MUTE
6
IN2
4
Ri=
20kΩ
Input amplifier
IC3701 < Audio Control> QLV1116NV-EP
VCC
7
12
Output amplifier
11
Vcc / ground shorting protection circuit
10
Load shorting protection circuit
Thermal protection circuit
8
Output amplifier
9
1
Ripple
Filter
IC501 < Vertical Output > LA78040/LA78040N
+OUT1
-OUT1
PWR
GND
1
2
+OUT2
-OUT2
-6-
Thermal
Protection
-
AMP
+
Pump
Up
3
4
5
6
7
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