2n4401 mod

[kd7vdb]

http://benheck.com/book/support/Atari2600VidMod.htm" onclick="window.open(this.href);return false; heres the website. I made it but ive been having issues mainly with only having a scrolling black and white picture. Anyone ever done this mod?

[Mario]

Do you have this hooked up to a PSOne screen? If you do, you may have missed this part:

NOTE: To use this video output mod with a 5" PSone screen use these different resistors as indicated:

377 ohm resistor instead of 370 ohm
193 ohm instead of 130 ohm
680 ohm instead of 1K

The rest of the circuit remains the same.

EDIT: Also this:

1) This mod was done for Atari 2600's that have been hacked into 4" x 4" squares (as I so love to do) If you're modding an entire Atari 2600 you should remove the RF modulator *big silver box on lower right of board) before doing this mod. This keeps it from "recombining" the video signal you're trying to separate.

[kd7vdb]

negative im hooking it to a tv. i also would like to know if i should remove rf stuff becase i already removed them.

[c_mon]

I've done this mod and it works great. I don't know what your problem should be. Check your wiring and soldering...

[kd7vdb]

This is what ive got, is the transistor backwards in the diagram?

[c_mon]

Yeah, you should remove it.

I sell A/V mod kit for Atari 2600 with printed instructions. P.M. me if you are interested...

Good luck, BTW...