Famicom A/V Help!

[petik1]

Tell us how it turns out afterward.

Sure, I'll take pictures and put them here.

[133MHz]

is there like a rubber stopper to put on the cable right before the hole so that if I pull on it the solder doesn't break off? If not, I'll just improvise...

I just make a knot on the end of the cable .

[petik1]

OK, but I was looking for something like the rubber thing that holds the controllers' wires in place.

[petik1]

YAY!!! My resistors came yesterday, now I'm waiting for my neighbor to come from vacation. PS, I almost beat Super Mario Advance!

[petik1]

Ok. You guys are great. My negihbor made the video amp perfectly. Alothough, I can't play it because a few days ago, the soldering on the "gold" resistor broke off, and I soldered the wires in the wrong place. I found that out when I plugged it in. I'm lucky, it probebly was another chance at blowing my famicom up.   Oh, well, I'll get that fixed tomorrow, but for now, thank you all, elspecially 133Mhz for the advice and the schematic. I'll get those pictures up as soon as its working!

EDIT: Ok, guys I got a new problemI have it working, butI only get sound! I get little waves that I can barely make out as the video. Any explanations?

[133MHz]

Something is wrong with your video amplifier. Did you connect the transistor the right way around? Is your 5V supply correct?

[petik1]

ummm, I just figured out, that if I plug in the RCA and the RF cable, It works buetifully on VIDEO. I don't know how, but it works and thats all I care about. Any explanations?

[133MHz]

Any explanations?

Lack of a ground reference. The outer connector on your RCA cable isn't properly connected to ground, and when you plug in the RF lead you're completing the circuit, since the RF out is at the same ground potential as the rest of the system.

[petik1]

So what am I supposed to do? Solder the outer connecter to the GND? Both for the video and audio? Wouldn't that short it out?

EDIT: Yes, my neighbor just folded the wire back and taped it down to the cable since he didn't know what to do with it.

[133MHz]

So what am I supposed to do? Solder the outer connecter to the GND? Both for the video and audio?

Correct, that is required for proper operation. Electricity needs two wires to flow.

[petik1]

Ok, so I'll have three wires on the GND? One from the AMP, and two for AV cables. Oh, and I have two more easy mod questions later once i figure this out.

[133MHz]

Ok, so I'll have three wires on the GND? One from the AMP, and two for AV cables.

Indeed my good sir.

[petik1]

OK. I got it working. I guess there's not much else. Thank you so much 133Mhz. For everything. You guided me through this whole process and dealt with my stubborn attitude at the begginning with the mod. Now I have my famicom running bueatifully. I sat back and listened to the game Mother's awesome title music. Now, for my last few questions:
1. Is there a way to route a little LED light from the Power switch or anywhere to the other e xtra hole so I can tell if it's on or not?
2. Is there anywhere where I can get a thick tube with wires so I can extend the famicom controllers?
3. Is there any insulator I can put over my "gold" regulator so it doesn't damage my case? It's right under the power switch when facing up...

[133MHz]

OK. I got it working. I guess there's not much else. Thank you so much 133Mhz. For everything. You guided me through this whole process and dealt with my stubborn attitude at the begginning with the mod.

No problem dude. I'm glad that you got your Fami working. Now enjoy it! .

1. Is there a way to route a little LED light from the Power switch or anywhere to the other extra hole so I can tell if it's on or not?

Oh yes. From the same points you got +5V and GND for the video amplifier you can connect a 330 ohm resistor in series with a LED (the size & color choice is yours) and put it anywhere you want .
Remember that LEDs are polarized so it will only light up if connected the right way around.

2. Is there anywhere where I can get a thick tube with wires so I can extend the famicom controllers?

Get some spare NES/SNES controllers and use their cables. They already have the right amount of wires inside.

3. Is there any insulator I can put over my "gold" regulator so it doesn't damage my case? It's right under the power switch when facing up...

It's counterproductive to insulate the regulator's heatsink. As you may have noticed it gets quite warm and the purpose of that big lump of metal is to get rid of the heat as fast as possible, otherwise the regulator would overheat and burn out. Try to keep it away from the circuit board to avoid a possible short circuit.

[petik1]

It's counterproductive to insulate the regulator's heatsink. As you may have noticed it gets quite warm and the purpose of that big lump of metal is to get rid of the heat as fast as possible, otherwise the regulator would overheat and burn out. Try to keep it away from the circuit board to avoid a possible short circuit.

Ok. I have it away from the board. Is there any chance of it doing damage to the case, or am I being an overprotective fami- parent?