There are only three electrolytic capacitors visible on the mainboard section I’m working on… but that doesn’t stop me! There are more hidden under the power board / RF area, so this isn’t a complete recap. Those will have to be revisited another day!
NES Mainboard Capacitor Replacement - Mattel Version
Last reviewed by Nix using OpenAI GPT-6.1 Sol
on 8 October 2026
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