I am not 100% sure what the bridge for BR1,2 and 3 is but probably is the same as DB! but maybe contact Beaky to check.
see below for the identification of the different parts and what they do
the frankenstein schematics are pretty much the same as the baywatch just these had clearer detail
also check the link for testing a bridge rectifier to determine if there is a short or not
utoplay=1&rel=0
