Search found 164 matches

by guitarzombie
Wed Apr 15, 2015 10:31 pm
Forum: NES Hardware and Flash Equipment
Topic: SL2ROM pinout
Replies: 4
Views: 3084

Re: SL2ROM pinout

in the NES-xx-a code the "a" indicates the data revision. It doesn't have anything to do with the hardware. The -2 on your bases loaded cart indicates the prg has been revised and sold at least twice since the initial release. The -0 build was fatally broken, hence the patch chip on those boards. T...
by guitarzombie
Wed Apr 15, 2015 10:05 am
Forum: NES Hardware and Flash Equipment
Topic: SL2ROM pinout
Replies: 4
Views: 3084

Re: SL2ROM pinout

Ah ha, thanks for the input
by guitarzombie
Wed Apr 15, 2015 9:13 am
Forum: NES Hardware and Flash Equipment
Topic: SL2ROM pinout
Replies: 4
Views: 3084

SL2ROM pinout

Im using Blaster Master to make something and I forgot it was an SL2ROM, so im taking a look at its pinout. It turns out that SL2ROM is an SLROM board, 256 PRG 128 CHR BUT the prg uses a mask rom pinout and the CHR uses an EPROM pinout. SL2ROM CHR: 5+ 1 32 5+ A16 2 31 5+ A15 3 30 5+ A12 4 29 A14 A7 ...
by guitarzombie
Tue Apr 14, 2015 2:47 pm
Forum: Reproduction
Topic: Hot Slots (another bizarro problem)
Replies: 28
Views: 9105

Re: Hot Slots has garbled graphics only on ONE screen

No it doesnt, the BBB that worked with my weird wiring is a Texas Instrument 74HC161 and the HS that worked with yours is a Goldstar GD74HC161. I think what it boils down to really is the type of game. It might work or BBB but not HS and it could be some weird thing in the code.
by guitarzombie
Tue Apr 14, 2015 2:37 pm
Forum: Reproduction
Topic: Hot Slots (another bizarro problem)
Replies: 28
Views: 9105

Re: Hot Slots has garbled graphics only on ONE screen

I remember reading it somewhere and trying it and it worked and I stuck with it. I did Bubble Bath Babes today with the same board and same wiring and it worked. EDIT. So I tried your wiring and it worked. So now im really confused why it works on some but not others? Im gonna check that other CNROM...
by guitarzombie
Tue Apr 14, 2015 2:16 pm
Forum: Reproduction
Topic: Hot Slots (another bizarro problem)
Replies: 28
Views: 9105

Re: Hot Slots has garbled graphics only on ONE screen

It works, ive done it a few times.

EDIT, just to say that wiring only works with CNROM 07
by guitarzombie
Tue Apr 14, 2015 2:02 pm
Forum: Reproduction
Topic: Hot Slots (another bizarro problem)
Replies: 28
Views: 9105

Re: Hot Slots has garbled graphics only on ONE screen

It seems that different revisions of the CNROM board require different wiring. This is what ive had thats been successful with CNROM 07s, using a 64k CHR chip: Bend pin 5 on 161 Bend pin 1 on CHR Wire CHR pin 1 to pin 5 of 161 Wire 151 pin 12 to PRG GND Ive done this before and it has worked for tho...
by guitarzombie
Tue Apr 14, 2015 11:29 am
Forum: Reproduction
Topic: Hot Slots (another bizarro problem)
Replies: 28
Views: 9105

Hot Slots (another bizarro problem)

Hey all, just need a quick pointer. Im making a Hot Slots using a CNROM 07. Ive wired it up correctly, (161 lift pin 5, CHR pin 1 to 151 pin 5, prg gnd to 161 pin 12) and changed the mirroring to H. Ive done this before without any problem. Game boots fine, and works, but for some reason during the ...
by guitarzombie
Tue Mar 31, 2015 3:26 pm
Forum: NES Hardware and Flash Equipment
Topic: quick Q about 27c800s
Replies: 1
Views: 1018

quick Q about 27c800s

Hey guys, a friend of mine was looking into making some genesis repros, and we were using 27c160s for 2megs and 27c322s for 4megs. So I know that the 27c801s are 1Mb but at 8bit. So I thought about it and looked for 27c800s and see that they're 1meg x 8 bit OR 512 x 16 bit. Looking at the address pi...
by guitarzombie
Sat Mar 21, 2015 3:16 pm
Forum: NES Hardware and Flash Equipment
Topic: Non SMB/DH , SSVB/NWCup glob tops?
Replies: 4
Views: 1540

Re: Non SMB/DH , SSVB/NWCup glob tops?

Here are the pics
by guitarzombie
Sat Mar 21, 2015 9:00 am
Forum: NES Hardware and Flash Equipment
Topic: Non SMB/DH , SSVB/NWCup glob tops?
Replies: 4
Views: 1540

Re: Non SMB/DH , SSVB/NWCup glob tops?

Mine looks the most like Puzzle, the PRG side. But this is an official NES cart, but the little glob top tab doesnt look like it has a model number. I think it says 80005, but I cant tell. Ill have to upload it later.
by guitarzombie
Fri Mar 20, 2015 10:46 am
Forum: NES Hardware and Flash Equipment
Topic: Non SMB/DH , SSVB/NWCup glob tops?
Replies: 4
Views: 1540

Non SMB/DH , SSVB/NWCup glob tops?

I got a Konami 24 Double Dribble and to my surprise, when I opened it up... it was a glob top! Its the normal Konami board, but instead of a chip, soldered over it is a glop top on a really thin PCB over where the chip would have gone. I took some pics of it. Anyone else ever encounter this? Was thi...
by guitarzombie
Sun Feb 22, 2015 11:09 pm
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3552

Re: Game loads with no sound?

SFROM just has the PRG up to 256k, and 64k for the CHR. So after I trashed this board I have another SFROM (SFDROM) board. This one uses the bases loaded revision 1 for the PRG. Theres 3 types: SFEXPROM thats LD-0 with the weird chip in it. SFROM thats LD-1 (Mask rom layout) and, SF1ROM thats LD-2 (...
by guitarzombie
Sun Feb 22, 2015 10:43 pm
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3552

Re: Game loads with no sound?

Did some pin routing, looks like on the MMC1 the A15 AND A16 werent connected... yada yada yada nothing worked and pin 24 on the chip got knocked off. Well that was a waste and ill never figure it out. But I think theres actually a difference in SFROMs. SFROM (SFEROMs) are drop ins to 010s (or just ...
by guitarzombie
Sun Feb 22, 2015 9:50 pm
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3552

Re: Game loads with no sound?

I was making an Super Mario unlimited with an SFROM board. Ive done one before and its a straight drop in for a 010 and 256 chip. I took a look and somethings gotta give. So I disconnected the wire I have for A15 to the MMC1, and guess what. Same thing. So its A15 not getting to the MMC1, even tho ...