NORRISTOWN, Pa. — The jury in Bill Cosby’s sexual assault case ended a fifth day of deliberations Friday without reaching a verdict, testing the patience of defense lawyers and even the judge as it struggled to break a deadlock by making repeated runs through testimony given by the TV star, his accuser, and others.

With deliberations passing the 50-hour mark, longer than the testimony of all the witnesses combined, the 79-year-old TV star’s lawyer complained that jurors were seeking a replay of the entire trial. Lawyer Brian McMonagle also worried that some jurors might compromise ‘‘their views and their values’’ for the sake of reaching a unanimous decision.

Judge Steven O’Neill pushed back on repeated defense requests to send the panel home without a verdict, declaring that jurors could talk as long as they wanted over allegations that Cosby drugged and molested a woman at his suburban Philadelphia mansion in 2004. The judge had instructed the jury to keep deliberating after it reported Thursday it was deadlocked.

As jurors broke for the night, he praised them for their ‘‘hard work, dedication, fidelity to your oath.’’

Yet even the judge had his limits, putting his foot down Friday when jurors asked to hear a sliver of testimony they'd just had read back to them. He told them they had to rely on their collective memory.

The jurors will get back to work Saturday morning.

Associated Press