APC Smart UPS 2200

Have a SUA 2200 tower type APC UPS, the problem is that the unit when switched ON the fan rotates and then stops, checked the cable link from main board to the operation panel, some were broken off, so wire linked the d\same... still the problem persists, if anyone who may have worked and solved the problem please guide me about it, also if any of you may be having the service manual please provide me...

Thanks in Advance,
With Regards
karkera