No Audio/Video from Nintendo 64?

Thanks so much for the reply! I have re-examined the boards carefully under a microscope to check for any corrosion, dirt etc. and given them a thorough clean with IPA. I've also used an air duster to clear the game and jumper pak ports.

I plan to follow your advice next and investigate the capacitors - apologies it is something that I have never done before - I've done a bit of research - is it correct that in order to test capacitors they must be completely removed from the board first?

My pleasure! No, you can test them while they are still on the board! Anyway, it’s not wrong to replace them anyway. They are not that expensive and could solve the issue straight away! It’s always good to clean everything first before you buy it :)!

Hi there - just a quick update, I bought some recap kits and replaced the capacitors for the N64's but two are still not displaying A/V - the circuit is still receiving power as the light comes on, but I'm not really sure how to proceed from here.. the TV makes a low pitched blip sound when powering OFF the console, but nothing other than that

Hi Jake!

Hmm, could also be the cartridge slot which is just having trouble to read game and thus not showing anything on the screen. Did you cleaned this one as well? Some models do allow you to take the pins out and replace them for another one. Maybe test this first? If this fails, it is something else on the motherboard, maybe a broken IC? Those are hard to replace and even harder to find. Maybe you can buy a broken (donor) motherboard and swap some components with them to test. (off course it must not have the same issues)..

Thank you so much again koppie for your help and wisdom ❤ it's always extremely appreciated !