3.1.3 Introduction to IC used by the player
3.2.1 Video decode circuit principle
3.2.4 FM tuning circuit
3.2.7 Headphone output jack circuit
3.2.8 Button circuit
3.2.9 Charge management circuit
3.2.10 Battery voltage detect circuit
3.2.11 Battery protection circuit
3.2.12 Power management module
3.2.13 Reset circuit
3.2.14 Power on/off control circuit
3.2.15 MIC circuit
Section Three Servicing Cases
3.3.1 Servicing cases
3.3.2 Troubleshooting diagram
Section Four Signal waveform diagram
Section Five Function Introduction to IC
3.5.1 Function introduction to HY57V641620E
3.5.2 Function introduction to Rk2608
3.5.3 Function introduction to RT9284B
3.5.4 Function introduction to TPS62200
3.5.5 Function introduction to MCP73832
3.5.6 Function introduction to TEA5767HN
3.5.7 Function introduction to M41T62
3.5.8 Function introduction to WM8750BL
3.5.9 Function introduction to XC6206P152MR
Chapter Four Assembly and Disassembly Process
4.1 Disassembly process of the player
3.1.2 Principle of the player
3.2.2 Audio decode circuit principle
3.2.3 FLASH circuit
3.2.5 Display screen boost circuit
3.2.6 USB jack circuit
Section Two Unit Circuit Principle
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