Pictures please....jims cool wrote:ya own two of them.. well one.. took the connecter off one to build a CopyFamES!.. it's a NES with a Famicom slot and CopyNES..
How to fix a NES mainboard without 10NES lockout chip ?
Moderator: Moderators
- bootyhuntah
- Posts: 22
- Joined: Fri May 18, 2012 8:27 am
- Location: USA
Re: How to fix a NES mainboard without 10NES lockout chip ?
-
- Posts: 32
- Joined: Tue Aug 28, 2012 9:25 am
Re: How to fix a NES mainboard without 10NES lockout chip ?
Is anyone can post any picture of it please ?
- bootyhuntah
- Posts: 22
- Joined: Fri May 18, 2012 8:27 am
- Location: USA
Re: How to fix a NES mainboard without 10NES lockout chip ?
Well, if its too much trouble then don't worry about it.
Re: How to fix a NES mainboard without 10NES lockout chip ?
i've been busy i'll make a thread about it soon.. i've been planing on the FC expansion port and a few other things.. it's not that interesting atm.. haven't added a port switch so i can have games in both slots yet
TENNIS-JCIC ("Jims Cool Integrated Circuit") is on it's way!
Project Last Updated: 1/7/2013
Project Last Updated: 1/7/2013
- bootyhuntah
- Posts: 22
- Joined: Fri May 18, 2012 8:27 am
- Location: USA
Re: How to fix a NES mainboard without 10NES lockout chip ?
I understand. It would be nice to see if, and when, you get a chance.jims cool wrote:i've been busy i'll make a thread about it soon.. i've been planing on the FC expansion port and a few other things.. it's not that interesting atm.. haven't added a port switch so i can have games in both slots yet
Last edited by bootyhuntah on Wed Feb 13, 2013 12:33 pm, edited 1 time in total.
Re: How to fix a NES mainboard without 10NES lockout chip ?
Has anyone ever just installed a game cartridge CIC directly into their NES? Would you just need to lift the DATA IN/OUT pins on the NES Motherboard so that it would ignore any CIC in the inserted cartridge? Or would you need to lift any other pins? I'm just wondering if anyone has done this and made a schematic for going about defeating the lockout this way. And I suppose if the CIC reset signal still goes out to the cartridge then any multi-cart using that would still work.
Re: How to fix a NES mainboard without 10NES lockout chip ?
You could pretty easily stack the key on top of the lock ("stacked DIP") for all pins except pin 4 (LOCK/KEY). But I'm not clear that that's any easier…
Re: How to fix a NES mainboard without 10NES lockout chip ?
you could lift pin 1 and 2 on the lock then take a key CIC and bend pin 1, 2, 4, 5, 9 and 10 upward
stack the chips (solder pins not bet upward)
solder a wire from pin 1 (out) on the lock to pin 2 (in) on the key
solder a wire from pin 2 (in) on the lock to pin 1 (out) on the key
solder a wire from pin 4 (key/lock) on the key to pin 8 (gound) on the key
that's a lot of work though
if you replace the CIC you need to find a game with 319xA.. the timing of the other chips would stop lots of games from booting
stack the chips (solder pins not bet upward)
solder a wire from pin 1 (out) on the lock to pin 2 (in) on the key
solder a wire from pin 2 (in) on the lock to pin 1 (out) on the key
solder a wire from pin 4 (key/lock) on the key to pin 8 (gound) on the key
that's a lot of work though
if you replace the CIC you need to find a game with 319xA.. the timing of the other chips would stop lots of games from booting
TENNIS-JCIC ("Jims Cool Integrated Circuit") is on it's way!
Project Last Updated: 1/7/2013
Project Last Updated: 1/7/2013
-
- Posts: 32
- Joined: Tue Aug 28, 2012 9:25 am
Re: How to fix a NES mainboard without 10NES lockout chip ?
Hello,lidnariq wrote:Here's a photograph of it on my board.
Is anyone can tell me please if it's a 1M ohms resistor (or another one) in this photograph?
- Attachments
-
- cicremove2.jpg (19.6 KiB) Viewed 9392 times
Re: How to fix a NES mainboard without 10NES lockout chip ?
Yeah, that's the same 1M resistor that was there beforehand. I just moved one side.
-
- Posts: 32
- Joined: Tue Aug 28, 2012 9:25 am
-
- Posts: 32
- Joined: Tue Aug 28, 2012 9:25 am
Re: How to fix a NES mainboard without 10NES lockout chip ?
lidnariq wrote:You're not a dummie :p
To reassure you, I've gone and tested the most recent one I posted on mine: it works just fine.
(Reposting: )
I've tested this, and it worked perfectly......thx so lot
-
- Posts: 780
- Joined: Tue Nov 23, 2004 9:35 pm
Re: How to fix a NES mainboard without 10NES lockout chip ?
This should be lidnariq's schematic with the extra resistor to allow CIC Reset-dependent cartridges like the PAL-only Super Mario Bros/Tetris/Nintendo World Cup and the official Nintendo World Championships 1990 cartridge to work properly :
-
- Posts: 4
- Joined: Sat Dec 08, 2018 5:37 pm
Re: How to fix a NES mainboard without 10NES lockout chip ?
I have done the above NES lockout chip removal mod. See the attached photos.
At the moment, the NES is only giving me a gray screen. Although I have occasionally seen junk on the screen. I believe the soldering is sound. I suspect the 72pin since I also boiled and re-installed the original 72pin. However, I have checked continuity on the 72pin and even bent the bifurcated pins up. I said I suspect the 72pin, but as I have never done this particular NES removal mod I now suspect it. Has anybody here actually done this mod successfully?
Darryl
UPDATE: It is working now. Turns out it was the 72pin causing trouble. This mod works. So clean.
At the moment, the NES is only giving me a gray screen. Although I have occasionally seen junk on the screen. I believe the soldering is sound. I suspect the 72pin since I also boiled and re-installed the original 72pin. However, I have checked continuity on the 72pin and even bent the bifurcated pins up. I said I suspect the 72pin, but as I have never done this particular NES removal mod I now suspect it. Has anybody here actually done this mod successfully?
Darryl
UPDATE: It is working now. Turns out it was the 72pin causing trouble. This mod works. So clean.
Last edited by dphirschler on Mon Dec 10, 2018 7:38 am, edited 1 time in total.
Re: How to fix a NES mainboard without 10NES lockout chip ?
That's literally the thing I did. Your rework is a lot prettier than mine
Does the reset button do anything? At the very least, the LED should turn off while you're pressing it.
Does the reset button do anything? At the very least, the LED should turn off while you're pressing it.