Got these from japan this afternoon via EMS for me & andy as we both thought it was about time to get a couple of original japanese boards which are starting to get a little bit rare now well working ones:)
i also managed to swap out the battery with a new one if you have a VA japanese cps2 all in 1 unit and you are wanting to change the battery but are a little unsure how to go about it...well i used the way i do cps3 carts which is doing the battery swap with the game/pcb powered up....
WARNING:DO NOT TURN THE POWER OFF AT ANY POINT WHEN SWAPING A BATTERY ON THIS TYPE OF CPS2 UNIT AS IT WILL DIE THE MOMENT YOU DO.
ITS TOTALY DIFFERENT TO THE A/B TYPE CPS2 UNITS WHICH CAN BE DONE WHEN POWERED OFF.
Tools needed for the job.....
new 3.6v 1/2 AA size battery with leads
supergun & monitor
1,unscrew the 4 screws on the top of the case.
2,unscrew the 3 screws near the jamma connecter on the pcb.
3,then at the other end of the pcb release the 2 clear plastic push on clips(use a pair of pliers to nip the 2 little clips & push up slowly on the pcb until it pop out of the hole).
4,now slide the pcb out slowly side ways making sure you dont touch the pcb on the metel casing to stop any damage etc.
5,now connect the pcb to a supergun & power up wait for the pcb to get passed the rom check so you can see/hear the game running on the monitor.
6,now with the pcb running turn it parts side down/solder side up
7,with a soldering iron heat up the +/- and use a desoldering pump to get rid of any solder round the leads of the battery until it comes out you may need to turn the pcb on its side to help release the batterys leads from the pcb.
8,now the batterys out & the games still running get the new 3.6v 1/2 AA size battery & pre bend the leads to around the right size of the +/- holes on the pcb or use the old battery as a guide.
9,now turn the pcb on its side & push the batterys lead into the pcb making sure you have the battery in the right way round when you have the battery all the way in bend the leads on the solder side to keep them in place ready for soldering.
10,get some solder & run it slowly in the +/- holes making sure the battery is still nice & flat with no gaps on the parts side.
11,now with the battery soldered in cut the 2 leads from the battery making sure you have soldered them in nice & clean.
12,now turn the pcb off & repower after 5 seconds & you should have a working board with a nice fresh battery.
13,now place the pcb back in its case & enjoy your game for another 5 years.
heres some pictures of the boards etc...