Search found 145 matches

by joaoljr
April 19th, 2013, 1:33 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Edit: did some compares 6.bin = a78-20.35 7.bin.. ? (looks like a78-09.12 at the start..) (and matches 1q.rom from set sboblboa.zip) Any guess we can make from this? P.s. there seems to be plenty of room around most of the roms. (There's a lot of empty data in the gfx ones at least it seems.) 7.bin...
by joaoljr
April 18th, 2013, 10:49 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

The exact writing on these ic's is: 8700-A1 / Japan / 8732 D 8700-B1 / Japan / 8732 D There are 7 eproms(7x 27C256) on the board, no other OTP parts. The mystery 8700 ic's are paired it seems to the 6 and 7 roms. Your ROMs are: 1 -> Sound CPU 2, 3, 4 -> Main CPU (bb3, bb4 and bb5 images) 5 -> Slave...
by joaoljr
April 18th, 2013, 12:39 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

I checked the rest of the board, the following are inverted: 1P Start, 1P Left, 1P Shot1, 1P Shot2 (with 2P versions) only the RIGHT input is correct for both 2P and 1P. There is already a small bit of wiring/jumpering done on the board, i think for video but i'm not sure. The board is on the test ...
by joaoljr
April 17th, 2013, 10:52 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Just got this one in, from greedbay. I figured at would be the next best thing besides owning a real BB, they're rather pricey :) True. I tried to get an original one for a fair price but gave up and created the REDUX mod instead! 8-) It appears to be 99% jamma compatible, except for some inputs th...
by joaoljr
April 16th, 2013, 12:07 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Solei wrote: As you may have guessed, i took the liberty to ask him if you could contact him directly, and you are welcome to reach Tom...
Ok, I have sent him an email with some questions. I will post again once I have some news.

Punji
by joaoljr
April 11th, 2013, 10:46 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

"Regarding the language settings: I tried to flip the dip switches, but this version also does not boot up when you go into test mode .. same board with bootleg roms works fine." What exactly was the DIP switch configuration used here? It may help if you post a screenshot of the issue. Here's a lin...
by joaoljr
March 28th, 2013, 9:38 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Hi Elgen, nice reading your repair log! That board was really a bargain. I payed about the same for a similar non-working one (I just don't regret it because I learned a lot repairing it). Your board is a 56-pin non-JAMMA. I wonder why they did that. The JAMMA standard is from 1985, you board is fro...
by joaoljr
March 24th, 2013, 3:34 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

golani wrote:i found the fault.

now the board works fine! ;)
Great Simon! I'm happy your board is working fine now! :awe:

Punji
by joaoljr
March 23rd, 2013, 9:46 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

golani wrote:i still cannot get a clear treasure rom
From the screenshots, it seems the ROM lower address range is working now, but it is returning wrong data.

Did you replace the ROMs with 27512?
Did you do the board changes described at steps 3, 4, 5 and 6 to properly connect both ROM pin 1?

Punji
by joaoljr
March 23rd, 2013, 2:20 am
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Simon, I measured on my board and the voltages are very similar to yours. It seems the chips are ok. I think the problem may be an interrupted trace or short to ground from the bottom side of the resistors until pin 12 (bottom side) on the JAMMA connector. Please follow the trace and check for anyth...
by joaoljr
March 22nd, 2013, 9:17 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

those areas are not white - the are bright pink. Ok, so the issue is either: - The output video DAC stage and associated resistors, i.e., 74LS273 at positions T6 / T7. - The buffers that allow access to the color table, i.e., 74LS245 at positions R7 / Q7. Change the DIP switches to enabled the test...
by joaoljr
March 22nd, 2013, 6:50 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

I'm using http://www.photobucket.com . I like it because it allows direct links to images. Simon, I don't think your color issue is related to any of the board changes you did. The green channel appears to be missing everywhere. The graphic ROMs only contain color indexes, which are mapped to a colo...
by joaoljr
March 21st, 2013, 1:23 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

I have been testing out your patch with sboblbob ( set 2 ) in MAME. The set "sboblbob" has two images, bbb-3.rom and bbb-4.rom. Are you replacing those with bb3 and bb4 from REDUX mod? Note that you should replace all three ROMs, so that may be causing the reset issue. I have been able to reproduce...
by joaoljr
March 20th, 2013, 7:54 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

i cut that trace near the 74LS138 because its going right to pin 1 of ROM at position N2 . it makes a short-circuit before. i cut before only on bottom side 74LS138 pin1 as you pictured. Ok, I understand now. You are right, it is also necessary to cut the trace at the top of the board that goes to ...
by joaoljr
March 20th, 2013, 3:05 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

the 0 ohm problem was there because it is still a connection to pin 1 of ROM at position N2 - i cut it now i have 35 ohm I'm confused. You cut that trace near the 74LS138 that you indicated in the picture? This trace should be going to CA15 address line, not VCC. Also, 35 ohms seems too little. You...
by joaoljr
March 20th, 2013, 1:56 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Simon, the 0 ohms problem could be caused by pin 1 of ROM at position N2. The socket covers the board, we don't know what is below its left side. Maybe there is a trace connecting pin 1 to pin 28, so VCC could still be coming from there. Can you try to verify if that was the problem? I think you sho...
by joaoljr
March 19th, 2013, 9:27 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

i have now still at this pins +5volt (vcc) on all 6 roms at pin 1 and 28 is that right? Yes, but note that +5V is coming from a pull-up resistor network at position T2, not true VCC. These pins should still be able to switch to 0V, depending on the state of address line CA15. You may verify that wi...
by joaoljr
March 19th, 2013, 6:16 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

Simon, please follow the six steps below to change the ROM selection circuit in order to try to fix your graphics issue. Note that RED means "cut trace" and BLUE means "solder wire". http://i1308.photobucket.com/albums/s603/PunjiStakes/Bubble%20Bobble/back_zpsa97acdb4.jpg 1- Cut the trace that goes ...
by joaoljr
March 19th, 2013, 3:03 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

pin 20 of the other four ROMs (H2 / L2 and P2 / Q2) are connected to pin 3 on the 74LS138 at position G4 So, if these four ROMs are being selected by that same signal, it means something else is controlling the output enable of each pair. Anyway, that should not matter. I will post instructions on ...
by joaoljr
March 19th, 2013, 2:46 pm
Forum: Game Hardware Q&A
Topic: Bubble Bobble Bootleg info
Replies: 478
Views: 114960

Re: Bubble Bobble Bootleg info

joaoljr wrote:I did not check the boss level yet to confirm which graphics address range it is using.
I confirmed that the boss graphics are stored at the same ROM range as the treasure room.
I also verified on my single board after replacing the ROMs and the boss is displayed just fine.

Punji