This part is a kind of semiconductor called SA-AK22.

Function of this product has CD Stereo System Service Manual.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

ORDER NO. MD0101009C1 A6 CD Stereo System SA-AK22 Colour (S)... Silver Type Area (P)... U.S.A. (PC)... Canada TAPE SECTION : SG2 MECHANISM SERIES CD SECTION : RAE0152Z-3 TRAVERSE DECK SERIES Specifications s AMPLIFIER SECTION Power output 10% Total harmonic distortion 70 Hz-16 kHz, both channels driven (LOW) Power output 10% Total harmonic distortion 1 kHz, both channels driven (HIGH) Input sensitivity AUX Input Impedance AUX s FM TUNER SECTION Frequency range 87.9 - 107.9 MHz (200 kHz steps) 87.5 - 108.0 MHz (100 kHz steps) Sensitivity S/N 26 dB Antenna terminal(s) s AM TUNER SECTION Frequency range Sensitivity S/N 20 dB (at 1000 kHz) 560 µV/m 520 - 1710 kHz (10 kHz steps) 2.5 µV (IHF) 2.2 µV 75 Ω (unbalanced) s CD SECTION Sampling frequency Decoding Beam source/wave length Number [ ... ]

SA-AK22 PDF Datasheet Download