Panasonic EURO 4 Chassis, Technical Manual

Page: 88 / 163

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5
Chapter 1 Common Circuits
2. Audio Signal Processing
As with all EURO 4 models, audio processing is
provided by the MSP3410 IC2101. The MSP3410 is
designed as a Multi-standard Sound Processor used
in the processing of analogue and digital audio
signals. A full description of its operation can be found
in the Euro 4 Technical Guide,
section 20.
Although the internal processing of the MSP3410
IC2101 has not changed, the output processing path
has, as shown in the diagram below.
The left and right audio signals output from pins 24
and 25 of IC2101 are now fed via the Acoustic
Feedback (AFB) stage discussed in
chapter 1 section
3. These changes are highlighted below:
:
The right audio signal output from pin 24 and the
left output from pin 25 of the MSP3410 IC2101 are fed
via transistors Q2102 and Q2103 to connector E10
pins 1 and 2. The right and left audio signals are then
passed to the Z-Board via connector Z4 pins 1 and 2,
here the audio signals are processed by the Acoustic
Feedback (AFB) stage discussed in
chapter 1 section
3.
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