---
title: Fujitsu FM 77 AV EX
categories:
- Computers
types:
- Professional Computer
origins:
- Japan
years:
- '1986'
cpus:
- MBL68B09E
params:
  name: FM 77 AV EX
  image: /media/museum/photos/fujitsu_avex_1.jpg
  company: /companies/fujitsu
  company_name: Fujitsu
  specs:
  - label: NAME
    value: FM 77 AV EX
  - label: MANUFACTURER
    value: Fujitsu
  - label: TYPE
    value: Professional Computer
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1986'
  - label: BUILT IN LANGUAGE
    value: Unknown
  - label: KEYBOARD
    value: Full stroke keyboard with numeric keypad
  - label: CPU
    value: MBL68B09E (8 bits)
  - label: SPEED
    value: 2 MHz
  - label: CO-PROCESSOR
    value: Unknown
  - label: RAM
    value: 192 KB (up to 448 KB)
  - label: VRAM
    value: 192 KB
  - label: ROM
    value: Unknown
  - label: TEXT MODES
    value: 40x20, 80x50
  - label: GRAPHIC MODES
    value: 320x200, 640x200, 640x400
  - label: COLORS
    value: '4096'
  - label: SOUND
    value: 3 FM voices + 3 PSG voices, 8 octaves
  - label: SIZE / WEIGHT
    value: 380x357x110 mm
  - label: I/O PORTS
    value: RS-232c, RGB video output, Audio, Video composite, extension bus, MIDI, SCSI
  - label: BUILT IN MEDIA
    value: 2 x 3.5'' disk drives (640 KB)
  - label: OS
    value: Unknown
  - label: POWER SUPPLY
    value: Built-in power supply unit
  - label: PERIPHERALS
    value: printers, modem
  - label: PRICE
    value: Unknown
  comments:
  - author: Conrad Russo (Vancouver, British Columbia, Canada)
    date: Monday 12th March 2012
    text: The major difference between the EX and SX is that the SX lacks the connector to connect a tape player to load software from cassette. The SX motherboard has the solder points for the connector, the relay, the caps and resistor, and the cassette asic, but they are unpopulated. You can populate them yourself, but the hardest part is finding the ASIC, it''s part number is MB43413. I managed to get 5 of them used from a supplier in China. I am going to try and have them reverse engineered and rebuilt in VHDL or Verilog so that anyone with an SX can add tape support.
  - author: Keith Greer (County Derry, United Kingdom)
    date: Sunday 18th December 2005
    text: Ah, my First Computer, I have been looking for pictures on the intenet for ages. Great computer, but I think a bit slow compaired to todays machines.
  oc_id: 374
  source:
    url: https://web.archive.org/web/20230603001920/http://www.old-computers.com/museum/computer.asp?c=374
    date: '2023-06-03'
---

Not much is known about this computer. Can you help ?

Apparently, the only difference between the FM-77 AV40 SX and the FM-77 AV40 EX, is the built-in BASIC language. Can someone confirm this ?

<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>