Blown Fuse / Smoke on Famicom?

Hi All,

Excuse my naivety. I purchased an original Japanese Famicom in Super Potato, Tokyo recently for use in the UK.

At the counter I requested them to provide power supplies - I was provided an RF Switch and Japanese AC Adaptor (100V AC 50/60hz with 10V DC 850mA)

Upon returning, I purchased this RF Cable: http://www.ebay.co.uk/itm/RF-Cable-Super...?

So I hooked up the RF Cable (didn't use the switch), and combined a Travel Adaptor + The AC Adaptor I was supplied with the Famicom and immediately after switching on, I noticed white smoke coming from the Famicom and a pop/bang noise after 5 seconds.

After realising I should be using a step-down convertor or a plug with the current AC Voltage I purchased this and tried using it tonight:

http://www.ebay.co.uk/itm/151415102678?_...

Unfortunately, the Famicom now when turned on doesn't seem to emit any noises or sounds, and the temperature remains the same so I can only assume it's broken - perhaps I've blown a fuse?

What's the best thing to do here?

Option 1) The Famicom is dead, I should just give up

Option 2) Is anyone here based in London that could perhaps take a look at it? I'd be happy to pay for your time & parts

Option 3) Is it possible I've blown a fuse or something that I could fix myself in a straightforward way?