My first project...

EvilnessNMyVeins · Post by **EvilnessNMyVeins** » Tue Aug 16, 2005 11:02 am

No you ground pin 2 to the back of the PSone lcd where the book tells you to scratch off the green.
Just try what I tell you. You don't need the controllers hooked up for the snes to start.
Connect 7.2v power to screen.

On the back of the PSone LCD take a wire from the right(as in direction) 7805 out, to the SNES 7805 out hole.

Connect negative jack(thats the pin on the mini snes) to ground (the silver spot below the screen tabs)

Solder another wire to that groundwire and connect to negative lead on DPDT switch.

Make sure screen tab rests on top of the wires and doesn't touch any green!

Hook up audio and video make sure to ground pins 4 and 8 to SNES.

It should start that way.

xriverfalconx · Post by **xriverfalconx** » Tue Aug 16, 2005 11:22 am

Does it matter to have audio right now? I just want to get something on the screen first before I go adding more stuff...

EvilnessNMyVeins · Post by **EvilnessNMyVeins** » Tue Aug 16, 2005 11:25 am

Not sure on that but highly doubt you NEED it,so just leave the audio out if it don't work add it.

xriverfalconx · Post by **xriverfalconx** » Tue Aug 16, 2005 11:34 am

Please don't hate me...

The negative jack (the pin on the mini snes)... what pin specifically?

The silver spot below the screen tabs... ???

Make sure screen tab rests on top of the wires and doesn't touch any green.....???

Can you help explain these in dummy terms to me?

EDIT:::

Also, I read everything over again, and realized no VIDEO is going to the lcd (smacks face over and over). I see where to connect the wire onto the snes board (thx to ben's book), however, which pin do i attach it to on the psone lcd? Also, just to make sure i have it right, ground pins 4 and 8 onto the snes board??? where on the board?

usbcd36 · Post by **usbcd36** » Tue Aug 16, 2005 12:42 pm

There are a lot of negative spots on the mini SNES, but the easiest one is the middle hole where the 7805 (regulator) was. If that's too much, the edges of the board are ground. Any big area of silver is usually groundâ€¦

xriverfalconx · Post by **xriverfalconx** » Tue Aug 16, 2005 12:44 pm

Okay, I have pins 4 and 8 grounded on the silver area, and pin 9 connected to (slot 2/pin 1) of the lcd. I'm still not seeing the game. Any clues?

Also...do you know what these are and where they are at?

The negative jack (the pin on the mini snes)... what pin specifically?

The silver spot below the screen tabs... ???

xriverfalconx · Post by **xriverfalconx** » Tue Aug 16, 2005 6:30 pm

Nevermind...system is no good...

I have a new one now (used). I took it apart, and its just the board only. Please, explain EXACTLY how it should be connected with the battery, switch and screen? Please be detailed as possible. This is getting real expensive for me...

usbcd36 · Post by **usbcd36** » Tue Aug 16, 2005 10:01 pm

Ok, first connect a wire from the positive terminal of the battery to the switch (this assumes you're using a simple power switch, an SPST), then a wire from the other terminal to the 7805 unregulated in terminal. If the 7805 is no longer connected to the board, connect the ground to the batteries and the ground and regulated wires to their spots on the board. Connect the AV wires as I said here. If you have a SNES and PSone screen, definitely use RGB, it is easy to acquire and input and it looks awesome. The stereo audio signals can be had from the leftmost chip in this picture:

To get them, connect 2 wires, one to the upper left pin (left audio) and one to the upper right pin (right audio).

To make the board thinner, desolder (one at a time) and reconnect the leads of those 8 big electrolytic capacitors to wires (slide small heat-shrink tubing pieces over each wire, solder the wires to the cap, then slide the tubing over the solder joint, shrink it by waving a flame under the tubing), then connect the wires to the board. Make absolutely sure you did it right, they are polarized. There are 2 small surface-mount parts directly above the 7805, either cut them off with wire cutters or desolder them. The SNES board will be very flat now.

xriverfalconx · Post by **xriverfalconx** » Tue Aug 16, 2005 10:06 pm

Okay, I will do this in the morning when I get to work. As for the sound...do you mean the RIGHT, not the LEFT???

usbcd36 · Post by **usbcd36** » Tue Aug 16, 2005 10:16 pm

Rightâ€¦did I say left? It is the rightmost chip. Also, when reconnecting the 7805, connect the ground and +5v to their original holes on the board.

Post by **Triton** » Tue Aug 16, 2005 10:46 pm

do you reattach the 7805? i prefer to not use it at all it saves room because of less batts (4 instead of 6) which is handy

xriverfalconx · Post by **xriverfalconx** » Wed Aug 17, 2005 6:25 am

I'm using a DPDT switch...does that make a difference????

xriverfalconx · Post by **xriverfalconx** » Wed Aug 17, 2005 8:08 am

This is what I have so far:::

Is this correct? Also, what else should be connected??? Draw lines showing what should be where please...thanks. I cannot afford to mess up this snes as well.

xriverfalconx · Post by **xriverfalconx** » Wed Aug 17, 2005 10:37 am

I connected it exactly as shown in EvilNMyVeins topic:

RIGHT HERE!

The screen flickers and thats about it...I don't see anything else. What am I connecting wrong???

:::::EDIT:::::

As for the flickering, I got that to stop and the screen is now turning on...however, the system is not showing anything at all (I realized I didn't connect the ground on the 7805 back to its original spot on the snes board). What else am I missing here???

usbcd36 · Post by **usbcd36** » Wed Aug 17, 2005 11:41 am

If the screen flickers, it means that the 2 7805s on it aren't getting enough power. Check your connections, they might not have enough solder on them. Also, there is an easy place to connect power connections to the screen, next to the fuses, there are 2 empty solder pads. One is positive and one is negative, just trace which one goes where. Make sure you have the negative connected directly from the battery to the screen and another negative from the battery directly to the NES (or if you're using a DPDT switch, a larger gauge wire should carry the power to the switch and from the same terminal, they should branch out). Same goes when talking about the positive, connect the positive to the switch and branch out the wires. Oh yeah, and you should also connect the negative to the SNES to the middle hole for the 7805.

Triton wrote:do you reattach the 7805? i prefer to not use it at all it saves room because of less batts (4 instead of 6) which is handy

You do have to have a regulator, but nobody said it had to be the 7805, you can use a switching regulator to get a LOT more battery life out of the 6, or you can get a low dropout/step-up regulator that will make 4 batteries sufficent, but you won't get much life out of them.