Hope this will save a good product from the dump and save someone a few hundred dollars:
Any 1A fuse will do the job, we just used a pico fuse we had handy.
If you need it you can get one at
http://www.coppelltvrepair.com/p/1403/rca-l46wd22-repair-kit-no-audio-intermittent-sound-no-sound-problem