Famicom World

Family Computer => Technical & Repair Assistance => Topic started by: Koi on April 09, 2021, 04:26:16 pm

Title: Famicom Picture Problem
Post by: Koi on April 09, 2021, 04:26:16 pm
Bought supposedly working Famicom on eBay using official NES RF cable (NES-003) and I'm getting this:

(https://i.imgur.com/uhwTJGC.jpg)

(https://i.imgur.com/iNmVtC2.jpg)

Distorted, shaking image with TV noise. Did I get a defective unit? Anyway to fix this?

P.S.1 I don't think problem is the RF cable because it worked fine on Super Famicom.

P.S.2 People on reddit recommended me to try tweaking pot but when I opened the console, mine was blocked by metal plate and I have no idea how to remove it and access pot.
Title: Re: Famicom Picture Problem
Post by: Koi on April 09, 2021, 05:23:07 pm
Quote from: tombo72 on April 09, 2021, 05:18:29 pmHave you tried both CH 96 and 97? (1 and 2 on the back of the FC)

It was CH 95 (1) and CH 96 (2) for me and yeah I tried both and got the same results.
Title: Re: Famicom Picture Problem
Post by: P on April 10, 2021, 04:27:25 am
I don't think the Famicom is defective, only the RF unit is noisy.

They say to move the pot a little in both directions a few times with a screw driver to shake off some oxidation and dirt, if you can figure out how to open the plating (I don't know how sorry).
Title: Re: Famicom Picture Problem
Post by: Pikkon on April 10, 2021, 08:18:34 am
You should be able to pry the metal plate off if I remember correctly but a av mod would be the best as it's a pretty easy and cheap mod to do.