Search found 11 matches

by silverfox0786
January 15th, 2015, 9:23 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

Asure wrote:Great to see you solved it and are enjoying Bubble Bobble now :)
thanks

its wasn't as hard as I thought

a mod that every single board owner should do I think
by silverfox0786
January 13th, 2015, 4:55 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

performed the graphics fix today and works a treat

LS138 Pin one goes to VCC

make sure that the connection that loops round the Pin1 LS138 is not severed

Pin 1 of both 27C512s need to go to Pin 1 of any GFX Chip, be it the 8700 or the blank slots
by silverfox0786
January 11th, 2015, 12:47 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

Regarding Bisboch / Aladar not running on MAME, that is caused by the monster speed DIP switch configuration, as someone mentioned before... it needs to be set to "Vert High" (apparently the monster speed is not affected by that, it is always the same as in the "Normal" setting). I compared their v...
by silverfox0786
January 10th, 2015, 12:46 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

joaoljr wrote:I have the score save mod installed on two very different boards. It think it should work on yours all right...
That's awesome
Thank you
by silverfox0786
January 9th, 2015, 9:46 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

Asure has provided some instructions on August 11th, 2013. Basically: - Re-route 74LS138 pin 1 to VCC (only). This should cause ROMs 6 and 7 to get selected for a 64K address range instead of the current 32K, allowing you to use 27C512 instead of 27C256. - Re-route pin 1 of both ROMs 6 and 7 to add...
by silverfox0786
January 9th, 2015, 6:19 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

@silverfox0786 I think you just need to replace ROMs 6 and 7 by two 27C512, since this is were the treasure room bitmaps are stored. You need to check where each pin 20 goes and maybe fix the LS138 logic. Please provide more details about the connections. Punji Had a look at my board and it matches...
by silverfox0786
January 8th, 2015, 7:10 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

@silverfox0786 Your board seems to be similar to Asure's one, i.e., it uses two 8700 (128K bytes) and two 27C256 (32K bytes) for the video ROMs. If that is really the case (need better pictures to confirm, including from the bottom side), you will need to replace the later chips by two 27C512 (64K ...
by silverfox0786
January 8th, 2015, 1:28 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 476
Views: 95972

Re: Bubble Bobble Bootleg info

i guess the two 27512 eprom chips at the down side are the reason I was able to further investigate the issue and confirmed that it is caused by the last pair of EPROMs that hold the video graphics. In my dual board, which works fine, there are six pairs of video EPROMs, all 27256, which gives a to...
by silverfox0786
November 3rd, 2014, 9:38 am
Forum: Cabinet Q&A
Topic: Naomi Driver POT pinouts
Replies: 2
Views: 580

Re: Naomi Driver POT pinouts

that just what I needed thanks
by silverfox0786
October 31st, 2014, 2:06 pm
Forum: Cabinet Q&A
Topic: Naomi Driver POT pinouts
Replies: 2
Views: 580

Naomi Driver POT pinouts

hi can anyone advise me how to wire up a pot for a Naomi driver wheel

I need to know where the 3 pins on the pot go to on the IO please

that goes for the wheel and the brake and accelerator

thanks
by silverfox0786
April 4th, 2014, 11:51 pm
Forum: Insert Coin
Topic: Introduce yourself here!
Replies: 4276
Views: 427914

Re: Introduce yourself here!

been on here a while first time posting

been into arcades for about 15 years now but only really now gotten into it