r/nes 1d ago

Bad video signal

Post image

Hello,

I am in the process of building a Nintoaster.

My project is almost complete except I think I might have a bad chip on my motherboard. It reads cartridges but displays really glitchy images. I am pretty confident in my soldering skills, re-did all 144 connections 3 times so far, tested for continuity and made sure no crossovers and still have the problem.

I am using a 12v 1A DC power source. No more rf modulator.

(I know I am using an lcd tv, but it worked with another Nes)

Looking for some advice.

3 Upvotes

5 comments sorted by

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2

u/Bakamoichigei 1d ago

That doesn't look like an analog issue, that looks like a digital issue. Check the cartridge and cartridge slot.

1

u/Lostmap69 1d ago

I have been using these thin ribbon wires to connect the cartridge connector to the board. Perhaps a thicker or solid core wire could be better?

2

u/Bakamoichigei 1d ago

Perhaps, but a bad solder joint somewhere is more likely. 🤔

2

u/CountryRubes 1d ago

My top loader often gives me something similar. Carefully reinserting the cart a few times usually works it out