WTD: Schematic or block diagram for pcb Sola 800A UPS

[G]

Howdy all......been looking for this for awhile now. The printed cct
board is etched with 2 different Sola numbers 32100-8202 Rev 2.0 and
also Sola 9-7142-20. Overall model number for this 800VA UPS is a
Sola 800A


Any help appreciated (Sola has been no help so far).


Gord