Brand: MITSUBISHI ELECTRIC
Category: Computer
Document Type: Manual
Language: EN
Manual for FT SERIES
Uploaded: Nov. 21, 2025, 6:14 p.m.
Welcome
- Unpacking: Keep all original packaging for future transport needs. Record component details for service purposes.
- System Unit Guide: Familiarize yourself with the various buttons, indicators, and ports of the system unit.
- Removing Panels: Learn how to safely remove side and top panels for internal access, ensuring power is disconnected and anti-static precautions are taken.
- General Advice: Choose a suitable site for the computer, considering temperature, humidity, ventilation, and ergonomics. Ensure power cords are not a tripping hazard.
- Connecting Components: Follow the steps to connect signal and power cables, ensuring all components are turned off before starting.
Getting Started
- Turning on the PC: Press the POWER button; the indicator will change color to show the power mode.
- Power-on Self-Test (POST): The system runs a diagnostic test on hardware components.
- Booting the Operating System: The computer attempts to load the pre-installed operating system (Windows 95, NT, or MS-DOS/Windows for Workgroups).
- Power Saving: Understand the different power modes (Off, Suspend, On/Standby) indicated by the Power Mode indicator color.
Troubleshooting and error codes
| Code | Beeps | Test which failed |
|---|---|---|
| 16 | 1-2-2-3 | BIOS ROM checksum |
| 20 | 1-3-1-1 | DRAM refresh. |
| 22 | 1-3-1-3 | 8742 keyboard controller |
| 2C xxxx | 1-3-4-1 | RAM failure on address line xxxx. |
| 2E xxxx | 1-3-4-3 | RAM failure on data bits xxxx of low byte of memory bus. |
| 30 xxxx | 1-4-1-1 | RAM failure on data bits xxxx of high byte of memory bus. |
| 46 | 2-1-2-3 | Check ROM copyright notice |
| 58 | 2-2-3-1 | Test for unexpected interrupts |
| 98 | 1-2 | Video configuration failure, or option ROM checksum failure. (One long, two short beeps.) |