Looking for repair manual on RB-435G

I have a number of the RB-435G units, that have been struck by lightning.

I would like to attempt a repair, as I am sure there is not too much damage on 2 of the units.

the 2 just seem to be a power issue, as their led lights just blink, so presume it’s just a transistor that is damaged, possibly even a resistor on a vref line along with it.

Any help with getting info on repair manual would be greatly appreciated.