Bush Wave Boombox Chipset

Amplifier PCB

The Bush Wave Boombox has a separate amplifier PCB that is below the main CD PCB. The amplifier integrated circuit (IC) has a heatsink attached.

CD PCB

LCD PCB

Holtek HT 1621B

SA9258

SC9640P

The SC9640P is a digital servo signal processor with microcontroller unit, manufactured by the Hangzhou Silan Microelectronics Corporation. It also has a built-in audio DAC.

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