Usually you cannot buy laptop power adapters in a retail store. In Japan, I had to order it online from Rakuten when I needed a HP laptop power adapter (missing, not broken). Also you can buy a generic one for like 2000 yen vs. 12000 yen from the manufacturer. I checked the likes of Yodobashi and Bic and they don't carry this type of product.

Also, the power adapter for a laptop rarely fails. It is usually the motherboard or an auxiliary board for the power supply. The older Thinkpads had the latter problem with solder fatigue at the connector. That's one reason that Lenovo redesigned the plugs so that they are fat ca. year 2007.

It might be possible to purchase a universal adapter like the one from IGo if it really is the power adapter. http://www.igo.com/ac-laptop-power/i...op-charger.htm

Actually, the IGo Juice is the only laptop power adapter that I have ever had fail on me!