I have a friend who would like to mod his ntsc SNES jr for ypbpr so he can directly connect to the component input on his tv. Is this possible? I did a basic search and have seen that it is possible on the old style SNES but am getting next to no info on the jr. Everything points to the standard RGB mod. I was also thinking that maybe he could use a THS7314 amp , because the spec sheet says it outputs ypbpr, if no other direct mod could be achieved. Anyone here have some solid info on the matter? Also, I did inform him that even if he is able to achieve the mod, his TV might not play nice with the 240p signal. He is willing to try it anyway. Thanks
As far as I know the jr doesn't have the video encoder needed for this mod. I did this mod to my first revision snes, which requires an amp unlike the second revision mobo.
Afaik, the SNES jr can't output YPbPr without a mod like Ace's from the Sega-16 forums (Helder sells boards here for the NESRGB which may work OK on the SNES), which could have mixed results. You could always just buy an RGB to component converter, which would do the same job, but be external rather than internal.
I want to add that the component video from the snes's on board chip doesn't give as much detail as rgb, Its not noticeable until games like earthbound are played. When I say"detail" I mean color, Its pixel perfect video of course. (I don't know if its the same for the second revision mobo)
I have never seen rgb in person but I can say a component modded snes can produce a nice picture,here are some I took. This is one my sony trinitron. And one on a plasma.
I did a side by side comparison(rgb vs ypbpr), and the difference is there, though with games like mario you may not see it, but with zelda its likely you will. If you don't have them side by side you won't, notice it.
Have the YPbPr mods changed at all within the past year? Like better methods to use? I was curious if the one that requires the S-ENC chip and adding 220uF caps is still the most common.
I'm actually curious on this as well, what's the 'best' way to wire up the mod on a BA6592F system at this point, I've seen people suggesting adding caps, adding 75 ohm resisters on two lines, using 1k resistors to drop ground instead, etc. All of the existing threads are a total mess at this point, so if someone can clarify on the ideal setup, I'd be much obliged
To be honest, I've found just wiring it directly with a single 75 ohm resistor on luma works best for me.
Use a THS7314 in it's ac-coupled mode to amplify Pb and Pr, just like a RGB mod. Ac-coupling requires a series capacitor and pull-up resistor at the inputs. The 1k resistors on the encoder's Pb and Pr outputs are required to make the pins "work", without them the pin cannot sink current, which means it cannot drive the series capacitor for the THS7314. The THS7314 requires 75 ohm resistors on its outputs to "back terminate" the line. It's your choice whether to insert 220 uF ac-coupling capacitors in series with the 75 ohm resistors. ? Luma already has a 75 ohm resistor (or equivalent) terminating the line for S-video. How are you wiring Pb and Pr? You need an amplifier (as you technically do for RGB) for signal compliance.
