Search found 164 matches

by guitarzombie
Sun Feb 22, 2015 9:05 pm
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3516

Re: Game loads with no sound?

Ok I im up to 2-2 and only noticed a few other things that must be related. 1st, when I die or fall off a cliff, sometimes instead of the screen being locked, it continues to scroll to the right as if mario was still moving at the speed he was when he fell. 2nd, after I rescued Yoshi, instead of sto...
by guitarzombie
Sun Feb 22, 2015 8:53 pm
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3516

Re: Game loads with no sound?

Ill give it a shot. I think that maybe some solder is bridging some pins or something on the MMC1 I cant see or something. I did play for a little less than 5 mins the first time to see if the sound popped up but didnt. Nothing else was bugging. No sound, music, effects or anything. But I CAN hear a...
by guitarzombie
Sun Feb 22, 2015 6:56 am
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3516

Re: Game loads with no sound?

Is it possible that it could also be a bad chip? I had used this chip before and the legs might not be all sturdy in the body of the chip.
by guitarzombie
Sat Feb 21, 2015 8:14 am
Forum: Reproduction
Topic: Game loads with no sound?
Replies: 10
Views: 3516

Game loads with no sound?

Maybe someone will have some insight on some of these address lines or something, because this is another situation I cant figure out. 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. Anyway, it didnt work, i popped it ...
by guitarzombie
Sat Feb 21, 2015 8:06 am
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Ok I got it. For the CNROM-161 board, I was right the CHR chip was bad straight from the package. Swapped it, and worked. Now for the MHROM board I couldn't figure out why so I checked the pinout of the 161 I did. I saw that it controls PRGs A15 even tho i wasn't using it. I lifted pin 1 of the prg ...
by guitarzombie
Fri Feb 20, 2015 11:14 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

I tried switching the mirroring, and using D3, D4 and D5 and it was worse. So its def D2 and the graphics are all a mess. Im thinking the chip I got was over erased. Gonna chuck it and try again. I hate when i waste all that time for nothing. And I gotta figure out how my Super Mario Unlimited is wo...
by guitarzombie
Fri Feb 20, 2015 10:38 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Im def not.

Anyway I tried another one with a CNROM 256-161 board, same diagram and got glitchy graphics again, even tho the mirroring is right too... hrm.
by guitarzombie
Fri Feb 20, 2015 10:00 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Then how is it this wiring diargram PRG: Pin 14 (GND) to 161 pin 12 CHR: Pin 1 (A15) to 161 pin 5. Works for CNROM-07s to make the CHR 64k when you're grounding the output pin of the 161 and a15 goes to the input? I know this cuz its worked for me. EDIT! SUCCESS! (Kinda) I took what you said and loo...
by guitarzombie
Fri Feb 20, 2015 9:34 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Well the screen started up no problem, hit start and it froze in a black screen, no graphics.
by guitarzombie
Fri Feb 20, 2015 9:30 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Thanks ill try that right now. Is there any short hand I need to know in order to understand this better? Like I said im having the same kinda problem with the CNROM-256 LS161 boards. I can get them working on the CNROM-07 boards with that above pinout I had but if this 161 board is different, if yo...
by guitarzombie
Fri Feb 20, 2015 9:15 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

I dunno how that makes a difference? I was making some of the panesian games
by guitarzombie
Fri Feb 20, 2015 8:45 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Trying to make it work? I mean it says in the title, im trying to get my MHROM to accept a 64k chip instead of its socket-ed 32k slot. Joe was kind enough to give a suggestion but both of his suggestions didnt work. The only thing I did different was lift pin 11 of the 161. Im pretty sure its not co...
by guitarzombie
Fri Feb 20, 2015 8:09 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

So I gave this a shot. I bent pins 6 and 11 on the 161, attached chr pin 1 to 161 pin 11 and pin 6 to prg pin 17 and garbled graphics, when I hit start it freezes, same with when I connected it to pin 15. I had better luck connecting it to D1 (no garble graphics on that title screen) but just wouldn...
by guitarzombie
Sun Feb 15, 2015 12:24 pm
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

Of course. I learned something. Cool!
by guitarzombie
Sun Feb 15, 2015 10:07 am
Forum: Reproduction
Topic: Converting MHROM CHR 32k to 64k?
Replies: 20
Views: 8404

Re: Converting MHROM CHR 32k to 64k?

yup! So this is what you're saying:

PRG Pin 17 to 161 pin 6
CHR Pin 1 to 161 pin 11