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I would recommend searching the brand and model of your laptop. If you need to find the fan, search 'Brand Model # fan' on Google (or your preferred parts site. For example 'Dell Vostro 1720 fan'. If you need the physical replacement instructions, then add 'replacement' or 'disassembly', such as 'Dell Vostro 1720 fan replacement' or 'Dell Vostro 1720 disassembly'. (I used a sample laptop model for these instructions; replace 'Dell Vostro 1720' with your laptop model.)
there will be a sticker on the fan itself,
it starts "CNxx-xxxxx-",
the italicised x's above denote a 5-digit part number. call dell and ask for a fan, quote the part number and but one.
failing that most local computer repair shops can change the fan motor/blade unit and fit it into the original housing.
My take on this...if that pin was *shorted* to another pin in the connector and not just bent, you could be looking at a damaged video input section. The pins in the video connector consist of the 3 color signals(red--green--blue), their individual grounds, and syncing. If this has indeed happened, which is *VERY* easy to do, the projector must be repaired by a service facility.