Thanks for the answer it definitely helped me get to the solution.
Search found 6 matches
- Fri Jan 14, 2022 6:02 pm
- Forum: NESdev
- Topic: SMB1 Working but not SMB3
- Replies: 7
- Views: 1098
- Fri Jan 14, 2022 6:01 pm
- Forum: NESdev
- Topic: SMB1 Working but not SMB3
- Replies: 7
- Views: 1098
Re: SMB1 Working but not SMB3
Also, I believe /IRQ should be always high when you turn on the NES with no cartridge inserted, or when running SMB1. If you don’t see 5V, you may be missing a resistor from /IRQ to 5V, or may have the incorrect resistor, etc. You can safely add a 10k resistor from /IRQ to 5V at the cartridge conne...
- Fri Jan 14, 2022 6:44 am
- Forum: NESdev
- Topic: SMB1 Working but not SMB3
- Replies: 7
- Views: 1098
Re: SMB1 Working but not SMB3
The only things I can think of: - Dirty connector/games - problem with /IRQ signal. The older games might not enable IRQ. This signal may need a pull-up resistor or something. It’s not the dirty connector or games because I have been using the same ones between a original hardware and the rebuild
- Thu Jan 13, 2022 9:23 pm
- Forum: NESdev
- Topic: SMB1 Working but not SMB3
- Replies: 7
- Views: 1098
SMB1 Working but not SMB3
I have purchased an populated the NESessity v1.3 Replacement PCB for NES Console. It seems only a couple games work tho. I am having this really off issue where I can only play my older games (ie. Super mario bros and Milton’s Secret Castle). super Mario Bros 3 just freezes and stutters at the top o...
- Fri Jan 07, 2022 9:48 am
- Forum: NESdev
- Topic: UA6527P on NTSC Console
- Replies: 4
- Views: 1421
Re: UA6527P on NTSC Console
Yeah, those should need a 26.6MHz crystal instead. My understanding is that this frequency of crystal isn't particularly common, so you may need something different. And you'll need a TV that can accept PAL. Or at least 50Hz video, if you're ok with it being black-and-white. I see. This is very ins...
- Fri Jan 07, 2022 8:45 am
- Forum: NESdev
- Topic: UA6527P on NTSC Console
- Replies: 4
- Views: 1421
UA6527P on NTSC Console
I’m trying to figure out what is wrong with my console. Just a little backstory on the problem. I purchased a fan made PCB with all the components un soldered. I put everything together while using the old original CPU AND PPU. For some odd reason only SMB1 would work and not SMB3. I ended buying 2 ...