This post explains for the semiconductor STK432-070.
The Part Number is STK432-070.
The function of this semiconductor is Audio Amplifier.
Manufacturers : Sanyo
Preview images :
Pinout
1. L In ( + )
2. L In ( – )
3. NC
4. PRE + Vcc
5. C.C BIAS
6. +VE ( LCH )
7. – VE ( LCH )
8. +VCC
9. -VCC1
10. +VE ( RCH )
11. -VE ( RCH )
12. PRE -VCC
13. SUB GND
14. – R In
15. R In
Circuit
Description : Audio Amplifer