ok * UPDATE *
Per this thread:
viewtopic.php?f=29&t=20936
The LC-III Has an ERROR on the silkscreen.
What is labeled for C22 is wrong, It's backwards.

So especially with tantalums, because they can catch fire.
Install your cap the opposite polarity of what is listed on the silkscreen for C22 (only).
or just use ceramics for the whole thing, that way polarity is not a concern any more.
viewtopic.php?f=29&t=21044
Per this thread:
viewtopic.php?f=29&t=20936
The LC-III Has an ERROR on the silkscreen.
What is labeled for C22 is wrong, It's backwards.

So especially with tantalums, because they can catch fire.
Install your cap the opposite polarity of what is listed on the silkscreen for C22 (only).
or just use ceramics for the whole thing, that way polarity is not a concern any more.
viewtopic.php?f=29&t=21044