回答先: having keyboard function issuesThe accident usually was caused by the bad circuit in the bottom board. But you can try to clean the connetor of the keyboard firstly, if it can't solve the problem, you need to replace the keyboard. You may find the replacement keyboard on http://battery-adapter.com/
回答先: Can I replace cooling fan with other fan model?You need to replace the fan with the same model. But I also suggest you to clean the fan firstly, maybe that will solve the problem.
回答先: Best keyboard cleaning method and can I buy replacement keys?Since your keyboard has been used for a long time, based on this condition, I suggest you purchase a new keyboard, not single key. http://battery-adapter.com/advanced_search_result.php?k...