This part is a kind of semiconductor called VSX-323-K.

Function of this product has AV Receiver Operating Instructions.

Manufacturers : Pioneer

Image and pinout :

Some of the text within the PDF file :

VSX-423-K /-S AV Receiver VSX-323-K Discover the benefits of registering your product online at http://www.pioneer.co.uk (or http://www.pioneer.eu). Operating Instructions CAUTION TO PREVENT THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. D3-4-2-1-1_B1_En WARNING This equipment is not waterproof. To prevent a fire or shock hazard, do not place any container filled with liquid near this equipment (such as a vase or flower pot) or expose it to dripping, splashing, rain or moisture. D3-4-2-1-3_A1_En WARNING To prevent a fire hazard, do not place any naked flame sources (such as a lighted candle) on the equipment. D3-4-2-1-7a_A1_En Operating Environment Operating environment temperature and h [ ... ]

VSX-323-K PDF Datasheet Download