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Famicom World

Family Computer => Technical & Repair Assistance => Topic started by: boye on June 21, 2019, 06:08:06 pm

Title: LPF removal on Twin Fami?
Post by: boye on June 21, 2019, 06:08:06 pm
I've heard that the Twin Famicom uses a low-pass filter on the audio, which causes the sound to appear muffled. How do I go about removing the LPF?
Title: Re: LPF removal on Twin Fami?
Post by: fredJ on June 27, 2019, 05:29:59 am
Tim in Australia who sells the RGB boards suggested to replace a resistor. I tried that but the sound was worse, in my opinion.

Someone else here on Famicom World suggested to remove a certain capacitor inside. I didn't like the sound after doing so either.
Title: Re: LPF removal on Twin Fami?
Post by: 80sFREAK on June 27, 2019, 06:43:03 am
You don't remove that capacitor, but replace with 10nF one.

(https://img.maximummedia.ie/joe_ie/eyJkYXRhIjoie1widXJsXCI6XCJodHRwOlxcXC9cXFwvbWVkaWEtam9lLm1heGltdW1tZWRpYS5pZS5zMy5hbWF6b25hd3MuY29tXFxcL3dwLWNvbnRlbnRcXFwvdXBsb2Fkc1xcXC8yMDE0XFxcLzExXFxcL0JvcmF0LmpwZ1wiLFwid2lkdGhcIjo3NjcsXCJoZWlnaHRcIjo0MzEsXCJkZWZhdWx0XCI6XCJodHRwczpcXFwvXFxcL3d3dy5qb2UuaWVcXFwvYXNzZXRzXFxcL2ltYWdlc1xcXC9qb2VcXFwvbm8taW1hZ2UucG5nP2lkPTI2NGEyZGJlMzcwZjJjNjc1ZmNkXCIsXCJvcHRpb25zXCI6W119IiwiaGFzaCI6ImNjYzg2ZGE5Y2ZhNjg4ZTM4NzQxMGNlZDE5MDI0YmNlZmYzOGRhMmIifQ==/borat.jpg)
Title: Re: LPF removal on Twin Fami?
Post by: boye on June 27, 2019, 07:38:04 am
Why do you keep posting that image?
Title: Re: LPF removal on Twin Fami?
Post by: 80sFREAK on June 27, 2019, 07:52:46 am
Why do you starting new threads instead of search on this forum first? All your problems were discussed before many times.
Title: Re: LPF removal on Twin Fami?
Post by: boye on June 27, 2019, 08:41:44 am
I don't know either. I'll make sure to follow that rule later on.
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