James,

My board model is AA20630 (P/N 6 2713980). My IC8 is SRD210\14V\V4. It
can be found from some distributors such as
http://www.1sourcecomponents.com,
http://www.searchlighttech.com/searchResults.cfm. But these require
minimum order of $150 or higher.

I am still searching...

My IC1, IC2 and IC3 are IR2101 0048.