Component out snes with ba6592f questions.

I have an snes with the BA6592F encoder chip, My board revision is 1990 nintendo shvc-cpu-01. My encoder chip is place behind the cart slot and to the left of the sound board connector. Do I have to make an amp to get component out or can I just connect wires from the pins of the encoder chip and wire them to rca jacks? Which pins go to what?

 

Have the same model and did this mod and it came out great.

Follow this.

 

^ is not close to a proper amplifier, your results will vary TV to TV because Pr is "amplified" and Pb is not (they're complementary signals), and Pb needs manual tweaking.

More info: http://forums.nesdev.com/viewtopic.php?f=12&t=8979&start=45

The most logical solution would be to use a THS7314 as you would a RGB amplifier. The inputs will probably need to be AC coupled (series input capacitors, like 470 nF or 1 uF, then 5.1 M [IIRC] pull-up resistors) similar to the PCE RGB mod. You also should take Y from the S-ENC, not from the multi-out.

 

Thanks for the replies guys. Before you guys posted I went ahead and wired it up without an amp circuit and I saw an amazing quality image(granted it was black and white). I might go as to say the image is clearer than rgb scart. Anyhow when it comes to schematics I have the ability to screw it up without fail so I might Just pay ape to build the board for me.

To calpis: once the amp is built do I just connect the red ,blue and sync to the appropriate points or will there need to be some sort of power added to the circuit?

 

The reason you have good (black and white) quality is that the Y signal *is* amplified natively in the console. Y is the only signal used for black & white video.

If you use the THS amplifier you would connect Y, Pb and Pr outputs directly from the S-ENC chip to the amplifier circuit (it will need the capacitors and pull-up resistor on the input). No RGB or sync signals but the amplifier will need +5V and GND.

 

Thank you so much for this schematic. I guess I'll the 5v from the multiout.

 

I have one more question ( ape just got done building my board). You said pull the y from the S-ENC chip. Is y pin 23 and is pin 23 the one directly beside pin 24?

 

This will help dude.

 

So 23 is green(y) awesome.

 

Update: I just received the amp in the mail from ape and even though my panel mount jacks from mouser haven't come in yet I was able to do some testing. When I first hooked it up the color were very saturated ,but after adjusting my television I was able to make the image almost perfect( red is a tad weak but almost no one would notice). I don't think I care enough to swap the resistor on the red for something a bit weaker. Thank you Calpis for the schematic and thank you Pikkon for all the help as well.

Edit: It could be my off-brand ac adapter.

 

I know you have jacks on the way but here is something I did.

All you need to do is remove the rf modulator and install a 3.5mm trrs jack in the rf port and use a 3.5mm av cable for component,for audio use a snes av cable.

 

Actually Is saw someone online who just cut at the shielding and placed them under the sound board. As for audio I'm going to use a normal nintendo cable with female jacks soldered to it. Here's a pic that I shamelessly stole:

 

I have seen that pic before and that's a tight fit but it looks good.

Here is how mine looks.

 

That looks nice ,but I like the more orthodox method of component out. I also want to say that your super famicom is the cleanest I have ever seen. Did you retro-bright it?

 

Nope,that's how it came,guess I got lucky.

 

I finished working on my snes last night and I found out that the component jacks I bought from mouser were longer and fatter than the ones the guy in that pic used so It did require a bit more work to finish this console up. After I was done modding I spent an hour or two play speedy gonzales los gatos banditos( I wish I had video of that as I'm awesome at that game).





This pic shows that I had to cut back the shielding that goes under the board.

This pic shows how I had to desolder the grounding bracket of the sound card then cut it back as well as the grounding plate that touches the snes's own shielding.

 

Awesome work takeshi385,looks great.