Hi,

There is DS19310 on elektrotanya, maybe it helps:
http://elektrotanya.podzone.net/?q=showresult&megnev=sanyo&megnev2=ds19&kategoria=&kat2=schematics

Hi,

For the service manual of a Sanyo DS19330, pls try here.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.