You most likely require a reflash. Or you could try enabled R&D mode and disable lifeguard reset, it might keep the broken service from rebooting your tablet. You might be able to reinstall the broken service, unless you have a hardware problem.

Figure out which of these services aren't running in ASUI's process list, they should all be green since ASUI manages them.

dsp_dld
multimediad
esd
osso-media-server
mediaplayer-engine

The following commands will start the above services, only run the commands for the services that you couldn't find in the process list.

/etc/init.d/dsp-init start
/etc/init.d/multimediad start
/etc/init.d/esd start
/etc/osso-af-init/osso-media-server.sh start
/etc/init.d/mediaplayer-daemon start