This post explains for the amplifier.
The Part Number is TDA7265.
The function of this semiconductor is 25 +25W STEREO AMPLIFIER.
The package is Multiwatt11.
Manufacturer: ST Microelectronics
Preview images :
This IS 25 +25W STEREO AMPLIFIER WITH MUTE & ST-BY.
The TDA7265 is class AB dual Audio power amplifier assembled in the Multiwatt package, specially designed for high quality sound application as Hi-Fi music centers and stereo TV sets.
1. WIDE SUPPLY VOLTAGE RANGE (UP TO ±25V ABS MAX.)
2. SPLIT SUPPLY
3. HIGH OUTPUT POWER : 25 + 25W @ THD =10%, RL = 8Ω, VS = +20V
4. NO POP AT TURN-ON/OFF
5. MUTE (POP FREE)
6. STAND-BY FEATURE (LOW Iq)
7. SHORT CIRCUIT PROTECTION
8. THERMAL OVERLOAD PROTECTION