Summary

Sold as the AppleColor High-Resolution RGB Monitor, the M0401 was introduced with the Macintosh II and is similar in appearance to the Apple IIGS monitor. It was manufactured by Sony and uses a 14" Trinitron tube. It has a fixed horizontal frequency of 35 kHz, and was meant to be used with a resolution of 640x480 at 66.7 Hz.

Literature

• User Manual
• Service Manual (simplified)
• Macintosh Monitor Service Guide

Notes

Like many Apple monitors, the M0401 uses a DA-15 connector for video. It accepts analog RGB and composite sync. While its fixed horizontal scan rate does limit its usefulness, it can be used on a modern PC with custom 35 kHz resolutions. 760x570 at 60 Hz works quite well, for instance. In this case, a sync combiner such as an Extron RGB unit must be used to convert from H/V to composite sync.

Potentiometers for geometry and convergence adjustments can be found under a removable panel at the back of the monitor.

DB15 Pinout

1. Ground
2. Red
3. Composite Sync
5. Green
6. Ground
9. Blue
13. Ground