Summary
Dot mask 20" CRT from Hitachi. The CM811 can scan up to 96kHz horizontal, which is quite capable.
In the manual, the maximum resolution is listed as 1600x1200@75Hz with 203MHz of available video bandwidth.
It has been confirmed that the vertical refresh can go up to 200Hz on this model, despite the manual noting the max as 160Hz.
There is also a SuperScan 811 "Plus" model which has ever-so-slightly higher ranges on refresh rates and kHz.
Manuals
Notes
It seems there is currently no way to adjust RGB bias, sub contrast and some other options without the factory calibration software, which is currently lost media. Thankfully, RGB gains are adjustable through the user-facing OSD.
There are barely any pictures of these online - I have never found one myself. If you own a working one please submit some pictures.
| Specifications | |
|---|---|
| Brand: | Hitachi |
| Manufacturer: | Hitachi |
| Model: | CM811U |
| Series: | SuperScan |
| Viewable Size: | 20" |
| Inputs: | VGA |
| Sync: | HV Sync, CSYNC, Sync on Green |
| Native Resolutions: | VGA, SVGA, XGA, SXGA, UXGA |
| Horizontal Scan Range: | 31 kHz, 96 kHz |
| Vertical Scan Range: | 50 Hz, 200 Hz |
| Aspect: | 4:3 |
| Adjustments: | Internal Potentiometers, OSD Customer Controls |
| Tube: | Hitachi |
| Deflection: | 90° |
| Mask: |
Shadow
|
| Pitch: | 0.26 mm, .26 mm |
| Tint: | Dark, Matte Anti-Glare |
| Removable Glare Film: | No |
| Speakers: | None |
| Weight: | 60.6 lbs (27.5 kg) |
| Application: | Computer Monitor |
| Cabinet Material: | Plastic |
| Country of Manufacture: | Japan |
| Mounting: | Desk Stand |
| Degaussing: | Automatic on Power-on, Manual |
| Tag: | Needs Service Manual, Needs Measurements, Needs Yoke Info, Needs Tube Info, Needs Pictures |
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