SOURCE SELECTOR PART OSCILLATOR & PRE-AMPLIFIER PART AMPLIFIER PART LEFT CHANNEL
AMPLIFIER PART RIGHT CHANNEL
AUDIO FREQUENCY & LOGIC PART
Inputs:
AUX
Tape / USB / Sound Agent
Tuner
CD
Source Selector IC + sound processing
Data generation for spectrum analyzer
Digital Out (provisional only)
Overvoltage protection for:
+AMP
-AMP
+5V6
+12V_A
Control Lines
Generation of following supplies:
+12V_A, +12V_M
+5V6 → +5V_AMP
Pre-Amplifier + mute circuit
Adjustment of offset
500kHz Square wave Oscillator
Headphone Amplifier
Subwoofer out (provisional only)
Port Expander (shift register)
Generation of +5V_CD
Fan control
Modulator
Driver + Level shifter
Power FETs
Protection circuits
Modulator
Driver + Level shifter
Power FETs
Protection circuits
Speaker relay
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Chapter 11-5
Signal flow
Chapter 11-7
Chapter 11-8
Chapter 11-9
Chapter 11-6
Power 2003 75 - 150W Class D
Combi Board Circuit Diagram Overview
P2003 Class D Drawing Overview 2003 11 18
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