I have received a mini-component LG model XA16 which has low sound this has as amplifier IC the TDA7266SA which replaces it with an equal one but I persist with the failure to carefully review the card I found the Q 552 exploded is a surface mount transistor the problem is that I can not find the service manual to know the reference of such a transistor if someone can help me with this data or can provide the diagram I am very grateful