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Nintendo 64 Game Cart PCB Version NUS-03A-01
Passive Component Values and Locations

6/20/2021 by Old Kid

This is a work in progress. I wanted to test if the passive electrical components on my copy of Super Smash Bros were working, because I have been having an issue where the game data will not save to the SRAM on the cart. Looking around, I could not find a list of the values for the components inside the cart. So I de-soldered and measured them, and compared my measurements to the printed color values on the resistors/caps.


This pertains to the NUS-03A-01 PCB for Smash Bros. I'm not sure if it is exactly the same for every iteration of the S-RAM N64 games, but people are suggesting that the components are interchangeable across games that use the same save technology, so I assume the PCB and components would have to be nearly identical for this to work. Anyways, I will update this with more information as I discover it, but hopefully the info here can help someone else: 


The List of Passives

Nintendo 64 Cart PCB Version NUS-03A-01 Passive components measurements.
R1 = 100k Ohms 5% = 99.2 kohm (measured value)
color code: brown-black-yellow-gold = 100k Ohms 5%

C4 = 100 nF ±10% = 96.4 nF (measured value)
color code: brown-black-yellow-silver-white = 100 nF ±10% (min:90, max:110 nF) 900V

C5 = 10 nF ±5% = 8.94 nF (measured value)
color code: brown-black-orange-green-brown = 10 nF ±5% (min:9.5, max:10.5 nF) 100V

R2 =1k Ohms 5% = 0.990 kohm (measured value)
color code: brown-black-red-gold = 1k Ohms 5%

C3 = 10 nF ±5% = 9.11 nF (measured value)
color code: brown-black-orange-green-brown = 10 nF ±5% (min:9.5, max:10.5 nF) 100V

C6 = 10 nF ±5% = 9.75 nF (measured value)
color code: brown-black-orange-green-brown = 10 nF ±5% (min:9.5, max:10.5 nF) 100V

C1 = 10 nF ±5% = 24.4 uF (measured value)
printed label: 22uF 6.3V 85°C

C2 =10 nF ±5% = 10.01 nF (measured value)
color code: brown-black-orange-green-brown = 10 nF ±5% (min:9.5, max:10.5 nF) 100V


Here is a picture for reference locations:


I used a couple handy websites to decode the color codes on the resistors and caps:


Capacitors: https://www.dcode.fr/capacitor-color-code

Resistors: https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-resistor-color-code



Thanks for sticking around to the end! Email comments and questions to patrickclaytonworking@gmail.com