Does anyone have info on replacing the upper wire take up belt on a Sankyo 2000H dualux projector? To gain access to the two pulley wheels, it appears that the rear spindle assembly must be removed as well as a plate and wiring harness on the front. Concerned about problems that may be encountered by removing the rear spindle and front harness screws and metal reflector plate as well as tension adjustment for the rear spindle when reinstalled. Unable to locate a service manual.