whats the difference between the UK PS3 and the JAP and HK PS3?

Answer 1

the difference is in the region encoding ( PAL/NTSC ). I think theres no difference in the voltage usage( like for other electronics in different countries) as PS3 supports all... has some built in thing.
UK, India :), middle east, australia,and some others are PAL. I dont remember exactly. US, Jap, HK are NTSC for sure; they r written different for each- like NTSC-U , NTSC-J

Region code system is used to protect copyrights. Your player has a region code printed on the back of the unit and only will play DVDs or Blu-Ray discs labeled with identical region codes.Not to worry, many of them are region free though.
this may help ----
The DVD Forum has split the world into six regions. The six regions are :

Region 1: Canada, U.S. and U.S. territories
Region 2: Europe, Egypt, Greenland, Japan, Middle East and South Africa
Region 3: Hong Kong, Indonesia, Korea, Malaysia, Philippines, Singapore and Taiwan
Region 4: Australia, Caribbean, Central America, Mexico, New Zealand, Pacific Islands and South America
Region 5: Most of African continent, (Former Russia), Eastern Europe, India, Mongolia and North Korea
Region 6: China

Answer 2

1). Encoding - UK is in PAL region, Hong Kong and Japan are in NTSC J region.
2). 40GB is all the same everywhere (except encoding). There is a white version in Japan.
4). 60GB aren't the same (despite they look the same). NTSC J version has two chips from PS2 (Emotion Engine - CPU, Graphics Synthesizer - GPU). That's why it has the best backwards compatibility with PS2 games (it's correct for NTSC U/C (North America region) PS3 too). PAL 60GB has only one chip - GPU, the number of compatible PS2 isn't that big.
5). Voltage - you'll need a good 500W power converter.
6). Japan has an extra online service for PS3, but it's available only in Japan. There is an extra option in PS3's menu for it.

REMEMBER: PS3 games are region free, but PS1/2 games and movies aren't.

Answer 3

Simple. the 40 gig is 40 gig and the 80 gig version is 80 gig, and the 80 gig version has this fancy chrome i think and u can insert like memory cards to view pictures..., and 40gb does not play ps2 games and the 80gb can, and i wouldnt reccoment playing ps2 games in a ps3, the quality sucks from what i´ve read , you should just use a ps2 to play ps2 games, hope i helped

Answer 4

well they all support different things and they have different power suplies and they can only play there countrys blue ray discks