I recently acquired two Toshiba DVD units; model SD-1700U that are
experiencing very distorted audio.

Replace capacitors C926, C927, C928, and C929 on the main media board. The
caps are located near the connector which links the media board to the power
supply. They will be rated at 100 microfarads at 16 volts and are polarized.

Use caps rated at 100 microfarads with a voltage tolerance that is at least 25
volts. You can go with a higher voltage rated cap, but make sure that the cap
won't be too big to properly fit it in place. Observe correct polarity when
installing the new caps. - Reinhart