My tabletop famicom

Started by cmv2, October 05, 2011, 07:38:08 am

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pirate

Quote from: jpx72 on October 10, 2011, 09:47:04 pm
Quote from: pirate on October 10, 2011, 04:14:58 pm
We can same mod on hardware clone Famiclones without swapping CPU and PPU ?


Definately not. You need NTSC PPU for NTSC output and vice versa (CPU is universal). Those glob-top famiclones are build for multiregional use (now we know!) and manufacturers just switch the xtal when they export to NTSC/PAL country accordingly.


Are you sure about CPU ?
NTSC and PAL systems use different CPU's.
Just PPU and XTAL swapping enough for convert a PAL system to NTSC ?

jpx72

October 15, 2011, 07:00:50 am #31 Last Edit: October 16, 2011, 03:44:41 am by jpx72
Well in may be a little tricky AFAIK, but it worked on my famiclone and on my Rev.07 Famicom (talking about exchanging the PPU+Xtal only). So I can definately confirm it. But it may not work on all famiclones.
Check these threads:
www.famicomworld.com/forum/index.php?topic=6211.0
http://nesdev.parodius.com/bbs/viewtopic.php?p=69665
http://nfggames.com/forum2/index.php?topic=286
BTW there's a guy selling some CPUs and PPUs if you're interested:
http://nesdev.parodius.com/bbs/viewtopic.php?t=8113

Post Merge: October 15, 2011, 07:37:24 am

Can I please ask you, cmv2, for a favor? Can you please look at this famiclone and tell me if you see the soldering point to change it to NTSC?

It's a keyboard famiclone GLK-2001.
By the way I was able to NTSC-ize my "Unique" keyboard famiclone, with the exact same board as ericj has. Thank you!!!

cmv2

October 15, 2011, 09:01:09 am #32 Last Edit: October 15, 2011, 03:23:36 pm by cmv2
Here I would prove I'm not sure I would like to see the other side



no, better



or


but first put image other side, to prevent short circuit




jpx72

Thank you for helping me, I have tried the first variation, but no luck there, I will try the second and third today. Here's the front of the PCB:

cmv2

sorry but I need to see the other side of the plate because they have to be two points that do not have any element on the other side

jpx72


cmv2

according to this picture, if the pins are the same, I think it would be




jpx72

Thank you for all your work! I'll try it an report here ASAP!

cmv2

Stop Stop, these are the three points, had looked bad, sorry


pirate

Quote from: cmv2 on October 16, 2011, 08:41:23 am
Stop Stop, these are the three points, had looked bad, sorry




i hope you can help me too,i have some NOAC PAL Famiclones.


Post Merge: October 16, 2011, 04:07:05 pm

Quote from: jpx72 on October 15, 2011, 07:00:50 am
Well in may be a little tricky AFAIK, but it worked on my famiclone and on my Rev.07 Famicom (talking about exchanging the PPU+Xtal only). So I can definately confirm it. But it may not work on all famiclones.
Check these threads:
www.famicomworld.com/forum/index.php?topic=6211.0
http://nesdev.parodius.com/bbs/viewtopic.php?p=69665
http://nfggames.com/forum2/index.php?topic=286
BTW there's a guy selling some CPUs and PPUs if you're interested:
http://nesdev.parodius.com/bbs/viewtopic.php?t=8113

Post Merge: October 15, 2011, 07:37:24 am

Can I please ask you, cmv2, for a favor? Can you please look at this famiclone and tell me if you see the soldering point to change it to NTSC?

It's a keyboard famiclone GLK-2001.
By the way I was able to NTSC-ize my "Unique" keyboard famiclone, with the exact same board as ericj has. Thank you!!!


thanks for links.

cmv2

Quote from: jpx72 on October 16, 2011, 07:51:46 am
Thank you for all your work! I'll try it an report here ASAP!


work?

hashiriya1


jpx72

So I tried to solder all 3 yellow points together - according to the last uploaded picture, but it didn't start up. Then I also soldered the red point, but it was the same. BUT I am trying it with a slightly different xtal (20,996MHz), so that may be the problem (although my other famiclone worked with it on NTSC, but that may be just coincidence, everything depends on the whole oscillator circuit so...). I should have some original NTSC xtals soon, and then I will test it properly. I will report after that!

cmv2

the red point is not important, because is join in the top of image :P

but the xtal is very important

cmv2

Quote from: jpx72 on October 17, 2011, 09:59:52 pm
So I tried to solder all 3 yellow points together - according to the last uploaded picture, but it didn't start up. Then I also soldered the red point, but it was the same. BUT I am trying it with a slightly different xtal (20,996MHz), so that may be the problem (although my other famiclone worked with it on NTSC, but that may be just coincidence, everything depends on the whole oscillator circuit so...). I should have some original NTSC xtals soon, and then I will test it properly. I will report after that!


I looked closely, and saw that this pin is audio.

please take a picture with details of your motherboard to compare dentenidamente modified, because the photo with which to compare is not clear



on this board will not be easy to mod, patience  :P

sorry