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Modern replacement board to provide power and video to the NES.

Mark Dymek

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Description

Modern replacement board that gives power via usb c to the nes. It also creates composite video and provides a connection for RGB. this is a full replacement of the NES rf/power circuitry.

Details

Provides 5v power via USB-C. New version(not the one pictured) Has efuse for ovp, ocp, ptc for ovp but its slow to react.

Creates Composite video using a a733 transistor and also provides a jumper for RGB if you happen to be using a nesrgb or something similar. Cannot Connect both composite and RGB at the same time.

Files

BOM.csv BOM for the board. Comma-Separated Values - 8.31 kB - 08/31/2026 at 17:25		Download
nes_power_video.kicad_prl Schematic for the board. kicad_prl - 2.58 kB - 08/31/2026 at 17:25		Download

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Fairly straightforward, Solder in all components, You need to remove the NES rf/power board if you have not already done so. Desolder the can from the trace side not the nes side. the component side has all the traces so desoldering the other way will keep them intact if you make a mistake.

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BOM.csv

nes_power_video.kicad_prl

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