NES Clone Jailbars
Moderator: Moderators
-
- Posts: 35
- Joined: Fri Mar 06, 2015 4:53 am
NES Clone Jailbars
Hi. So I have this very hard to get nes clone that seems to have 4 cables going to an rf tuner. Through trial and error I found out that one of the pins where the tuner goes in actually outputs composite video but I have slight jailbars on the screen. Is there a way to eliminate them such as lifting pin 21 or would that not make any difference?
- krzysiobal
- Posts: 1037
- Joined: Sun Jun 12, 2011 12:06 pm
- Location: Poland
- Contact:
Re: NES Clone Jailbars
add 100uF between +5V and GND close to the nes-on-chip glob.
-
- Posts: 35
- Joined: Fri Mar 06, 2015 4:53 am
Re: NES Clone Jailbars
I would also like to modify it to run at 60hz. I've seen people say lift pin 16 and connect it to 5v but this is a UA6538 PPU and people say that doesn't work if you do it with that. It has the CPU UA6527P.
https://s14.postimg.org/vhe3gdlf5/20180127_015029.jpg
https://s14.postimg.org/vhe3gdlf5/20180127_015029.jpg
Re: NES Clone Jailbars
The decap'd UA6538 that barsmonster and others (edit: fixed my link) worked on analyzing shows that pins 14-17 should be the same function as the first-party 2C07, i.e. there's no way to change the frame rate.
Last edited by lidnariq on Fri Jan 26, 2018 7:35 pm, edited 1 time in total.
-
- Posts: 35
- Joined: Fri Mar 06, 2015 4:53 am
Re: NES Clone Jailbars
I suppose I'll try get my hands on an ntsc clone. I have one ordered from aliexpress that was cheap but it only has built in games and doesn't take carts.lidnariq wrote:The decap'd UA6538 that barsmonster and others worked on analyzing shows that pins 14-17 should be the same function as the first-party 2C07, i.e. there's no way to change the frame rate.
I have an FC twin but it looks really oversaturated and odd looking unless maybe it's just ntsc colour. The snes portion of it is broken though and it looks extremely cheaply made. Also you have to use snes controllers on it.
I'd like to just own a real ntsc console but it'll cost me far too much to import one.