Khaag's SNESp Progress Thread (56k)

khaag · Post by **khaag** » Mon Dec 03, 2007 10:36 pm

Alright, so I've been commissioned by Hedge to build a SNESp. I am using a FC Twin, PSOne screen (unmodded), built-in 7.4V LiPoly 5400 mAH batteries, and relocated cartridge slot.

I have the FC Twin and PSOne screen on order right now, so I don't have any real progress yet. I started this thread mainly to keep Hedge updated on the progress of his SNESp.

For now, I will show you the charger that I am going to build into the portable.

Front:

Rear:

Guts:

Now for a quick question. On the charger, there is a input for 10V-15V to power the charger. On the other side, there are two ports: one is for a 3-cell 11.1V battery, and the other (the one I will be using) is for a 2-cell 7.4V battery. As you can see the picture below, there are 3 pins in the port. The left is for (+) and the right is for (-). I don't know what the middle pin is for though. Can anyone point me in the right direction?

Hedge · Post by **Hedge** » Tue Dec 04, 2007 2:47 am

Good luck and please make me a good job!!

Please no Dead Pixels for the screen!!
thanks!

khaag · Post by **khaag** » Tue Dec 04, 2007 4:27 pm

Does anyone have any idea as to the pinouts? (Question in first post)

khaag · Post by **khaag** » Thu Dec 06, 2007 3:59 pm

Does anybody know if the FC Twin is region locked? Also, I still need the question in the first post answered.

MrTroy · Post by **MrTroy** » Fri Dec 14, 2007 12:17 pm

From my understanding the SNES wasn't region locked at all. The US SNES had two plastic nubs that prevented JP carts from going in. Nothing a pair of pliers couldn't break off.

As far as the charger goes. I haven't go the slightest.

Kyo · Post by **Kyo** » Fri Dec 14, 2007 1:05 pm

1. I'm pretty sure the FC Twin is regionfree. Like 90% sure
2. Japan and NTSC were the same, but japanese and NTSC carts could not be played on a PAL SNES, and vice versa. So yes, the snes DID have region lockout

edit: spalling

khaag · Post by **khaag** » Fri Dec 14, 2007 1:57 pm

OK, so it was tested with a Japanese Star Ocean and it works. With that out of the way, my question about the charger pinouts still stands.

I have split the controller, but now I'm just waiting for the rest of my parts to arrive before I go any further. I was originally going to use tact switches for the contoller in the fashion that Ben uses in the book. Upon further thought and testing however, I decided that I hate the feel of the tact switch buttons. There's none of that beloved "mushyness" if you know what I mean. So, I cut parts of the controller board apart and am going to use the rubber carbon contacts instead. Then I will just wire those to 2 IC's from NES controllers. It's a brilliant plan!

Anyway, I'll update when I get some noteable progress...

Website · Post by **Life of Brian** » Sat Dec 15, 2007 2:24 am

khaag wrote:OK, so it was tested with a Japanese Star Ocean and it works. With that out of the way, my question about the charger pinouts still stands.

I have split the controller, but now I'm just waiting for the rest of my parts to arrive before I go any further. I was originally going to use tact switches for the contoller in the fashion that Ben uses in the book. Upon further thought and testing however, I decided that I hate the feel of the tact switch buttons. There's none of that beloved "mushyness" if you know what I mean. So, I cut parts of the controller board apart and am going to use the rubber carbon contacts instead. Then I will just wire those to 2 IC's from NES controllers. It's a brilliant plan! Anyway, I'll update when I get some noteable progress...

Why use two NES IC's? Why not just one SNES IC? Ben's method was very frustrating for me and I did not ever get it to work; using an SNES IC I managed to get it to work the first time and every time.

Kyo · Post by **Kyo** » Sat Dec 15, 2007 3:02 am

if you don't need the buttons, but just the IC, don't kill NES controllers. Those things are still being sold. Just check for 4021s

khaag · Post by **khaag** » Tue Dec 18, 2007 6:15 pm

Ok, I've soldered 62 wires two times each (once to the cart slot, and once to the FCT mobo) and have successfully relocated it. I'll post pics of the madness later tonight.

Can someone look over this wiring diagram and see if it looks good? I'm using this Protection Circuit.

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Tue Dec 18, 2007 6:32 pm

batteries look good to me.

khaag · Post by **khaag** » Tue Dec 18, 2007 6:40 pm

Actually... now that I think about it, maybe I shouldn't tie the console/screen together with the Protection IC...

I want a power circuit that will allow me to charge the unit while it is off, and also be able to charge when it is on. Anyone got any ideas or perhaps want to edit my diagram?

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Tue Dec 18, 2007 6:47 pm

edit repost

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Tue Dec 18, 2007 6:51 pm

put the on/off switch on the ground from the console to the protection circuit, then connect everything ground wise from the console

also i noticed you wired it wrong, put the load(fc twin and screen) and the charger on the B + and -

khaag · Post by **khaag** » Tue Dec 18, 2007 7:06 pm

On the datasheet for the IC, it says to put charger OR load on P+ and P- and the battery on B+ and B-

I assume that this means that while the unit is charging, it cant be turned on?