Need olympus sp-500ua digital camera

I have repaired several digital cameras and can tell you that you cannot get a service manual as it is only optics with a single printed circuit card. The only thing that you can do is open the camera case, ensure that the ribbon cable to ziff connectors are seated, the memory card pins are not bent and clean any signs of corrosion. Even factory repair facilities merely replace the PCB if it is an electronic issue or align optical elements if it is a mechanical issue.   On one $500 camera I found a "parts only" camera of the same model for $75 online and made one good camera out of two. You did not mention what the specific problem you are trying to fix is but this should give you a better perspective of how to deal with digital camera repair. You will need magnifying glasses as checking for bent pins in a slot is a challenge in itself. Steve Medley