Apparently, he did not attempt to win the trial. Socrates did not defend himself effectively, meaning, he was lacking any true intention to convince the jury. In his Apology, Plato offered a version of the trial in which Socrates addressed the jury in the following way:
“Well, Athenians, this and the like of this is all the defense which I have to offer. Yet one word more. Perhaps there may be someone who is offended by me, when he calls to mind how he himself on a similar, or even a less serious occasion, prayed and entreated the judges with many tears, and how he produced his children in court, which was a moving spectacle, together with a host of relations and friends; whereas I, who am probably in danger of my life, will do none of these things. The contrast may occur to his mind, and he may be set against me, and vote in anger because he is displeased with me on this account.
Now if there be such a person among you, mind, I do not say that there is, to him I may fairly reply: My friend, I am a man, and like other men, a creature of flesh and blood, and not ‘of wood or stone,’ as Homer says; and I have a family, yes, and sons, O Athenians, three in number, one almost a man, and two others who are still young; and yet I will not bring any of them hither in order to petition you for an acquittal. And why not? Not from any self-assertion or want of respect for you. Whether I am or am not afraid of death is another question, of which I will not now speak. But, having regard to public opinion, I feel that such conduct would be discreditable to myself, and to you, and to the whole state. One who has reached my years, and who has a name for wisdom, ought not to demean himself. Whether this opinion of me be deserved or not, at any rate the world has decided that Socrates is in some way superior to other men.”
For Socrates, even to defend himself from accusations meant to value them in some way or to give them some meaning.