Twin Famicom

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Twin Famicom
Sharp Twin Famicom Console.jpg
Manufacturer Sharp
Generation Third generation
Release date July 1, 1986
Media type ROM cartridge

Famicom Disk Card

Successor Famicom Titler (1989)

The Twin Famicom (ツインファミコン tsuin famikon) was produced by Sharp Corporation in 1986, and was only released in Japan. It is a licensed Nintendo product, and is basically the Famicom and the Famicom Disk system which have been combined into a single piece of hardware.

Hardware

  • AN-500R: Twin Famicom console, red with black highlights
  • AN-500B: Twin Famicom console, black with red highlights
  • AN-505-BK: Twin Famicom console, black with green highlights and turbo controllers
  • AN-505-RD: Twin Famicom console, red with beige highlights and turbo controllers
  • AN-58C: RF-Converter
  • VO-U42S: Sharp 3D System, rebranded Nintendo Famicom 3D System
  • UADP-0041CEZZ: Power supply for AN-500, AN-505


Mods

Audio issues

There is a known problem, likely a mistake in the PCB-layout, with low-pass filtered audio. To fix this, you can remove capacitor "C205" which you will find between the white and yellow jacks. This will result in a much clearer audio.

Technical specifications

  • CPU: 6502 modified at 1.79 MHz
  • RAM: 2 KB work RAM, 2 KB video RAM, 32 KB extra work RAM in FDS mode, 8 KB extra video RAM in FDS mode
  • ROM: FDS BIOS and 60-pin "cassette" (cartridge) slot
  • Audio: 5 voice, two channels square wave, one channel triangle, one channel noise, one channel PCM
  • Graphics: 256x240 pixels, 64 sprites, display 25 colors out of 53