Can someone help me out with this AV mod?

Started by soop, February 28, 2012, 01:06:12 pm

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soop

agh.  Should it look like this?  Because this isn't working either.  Any idea what kind of readings I should be getting on the Multimeter?

Mine is laid out slightly differently to the pic I found of this mod, But I think I still got the right pins.


2A03

Are you sure you assembled the mod correctly? The collector pin needs to go to ground while most of your connections should involve the emitter pin. You should have both the positive lead of the capacitor and the resistor for your 5V going directly to the emitter pin, and then the negative lead goes to your output.

soop

Yep, my Famicom doesn't look exactly the same as the picture I found, but barring pins, I'm sure it's correct.

I'm gonna try flipping the transistor around :(

soop

flipping the transistor did nothing either :(

I must be doing something wrong here.

What about multimeter readings so I can tell where I'm going wrong?

2A03

If you have the proper tools, try pulling out the 2SA937 from the Famicom and use that instead. That's what I do for NES top loaders and Famicoms, and it provides a nice picture. I would also try lifting pin 21 on the PPU as that will get you a better picture than if you had it connected.