While I was searching I saw a U tube video of some one dismantling this same xj-a135 projector.
The labeling on his was a bit worn out, but on the other side on the bottom there was also more info and specs but was to out of focus and couldn't make out any lettering.. If your's doesn't have more marking and tech spec's than the seller peeled of that info..
I see the 3.3- 1.4A rating but I don't think that has anything to do with each indidvidual diodes ratings but I can see why you thought so.
There's a New Jersey US based Casio seller that I came across and they list a phone number.. 1 -973-361-5400
Maby call them and ask, the worst they can do is hang up on you..
im fully aware casio or any other manufacturer wont /dont put data for whats contained inside there products,i would never belived the hassle trying to find an answer to this has been,to my mind it was a pretty straitfoward question,seems not so,may just experiment and see what happens as ive about 20 ld's left,regards m3-vuv.