This post explains for the amplifier.
The Part Number is STK403-130.
The function of this semiconductor is AF power amplifier.
The package is SIP 15 Pin Type
Manufacturer: Sanken Electric
Preview images :
Description
This is 2 channels AF power amplifier. The STK403-130 is an integrated circuit (IC) module manufactured by SANYO (now part of ON Semiconductor) that is designed for use in audio amplification applications. Specifically, it is a hybrid power amplifier module that combines multiple components into a single package to provide high-quality audio amplification.
1. Amplification Type: Sereo power amplifier module, which means it is capable of amplifying two audio channels (left and right) simultaneously.
2. Power Output: This module is known for its high power output capability. It can deliver a substantial amount of power to drive speakers, making it suitable for use in audio systems with demanding power requirements.
Applications:
1. 100 W audio use
2. Home stereo systems, A/V receivers, amplifiers for musical instruments
Other data sheets are available within the file:
STK-403130, STK-403-130, STK403130