Brand: HITACHI
Category: Camcorder
Document Type: Manual
Language: EN
Manual for HV-C20/C20M
Uploaded: Nov. 21, 2025, 7:20 p.m.
The HV-C20/C20M is a 3-CCD color camera offering high resolution (700 TV lines), high sensitivity, and a 60dB signal-to-noise ratio. It features auto level control (ALC) for adapting to various light conditions, auto shading correction for color consistency, and bi-directional data communication via RS-232C for PC control. The camera supports C-mount lenses and has a flange focal distance adjustment device. Variations include the standard HV-C20 and the HV-C20M for optical instrumentation. Key features include auto iris lens compatibility, menu-driven settings for white balance, shutter speed, gain, and more.
Troubleshooting and error codes
| Error message | Measures |
| AUTO WHITE:NG CHANGE TO CAM TRY AGAIN | • Turn off the color bars |
| AUTO WHITE:NG CHANGE TO MEM TRY AGAIN | • Set WHT BAL to MEM. |
| AUTO WHITE:NG LOW LIGHT TRY AGAIN |
• Insufficient quantity of light • Increase illumination, open the lens iris, or increase gain to obtain an appropriate video level. • Press the AWB switch again |
| AUTO WHITE:NG C.TEMP HIGH TRY AGAIN |
• Color temperature is too high. (Continue to use if there is no practical problem.) • Lower the color temperature by adding a warm color temperature correcting filter to the lens or the illumination. |
| AUTO WHITE:NG C.TEMP LOW TRY AGAIN |
• Color temperature is too low. (Continue to use if there is no practical problem.) • Increase the color temperature by adding a cold color temperature correcting filter to the lens or the illumination. |
| AUTO SHADING:NG CHANGE TO CAM TRY AGAIN | • Turn off the color bars. |
| AUTO SHADING:NG LOW LIGHT TRY AGAIN |
• Insufficient quantity of light • Increase illumination, open the lens iris, or increase gain to obtain an appropriate video level. • Press the AWB switch again |
| AUTO SHADING:NG C.TEMP HIGH TRY AGAIN |
• Color temperature is too high. (Continue to use if there is no practical problem.) • Lower the color temperature by adding a warm color temperature correcting filter to the lens or the illumination. |
| AUTO SHADING:NG C.TEMP LOW TRY AGAIN |
• Color temperature is too low. (Continue to use if there is no practical problem.) • Increase the color temperature by adding a cold color temperature correcting filter to the lens or the illumination. |
| AUTO SHADING:NG SHAD MODE: COLOR CONTROL LIMIT |
• The optimum correction could not be made because correction amount is too large. Correction has been made as much as possible. Continue to use if there is no practical problem • Replace with a lens providing less shading. |
| AUTO SHADING:NG SHAD MODE: LUMIN CONTROL LIMIT |
• The optimum correction could not be made because correction amount is too large. Correction has been made as much as possible. Continue to use if there is no practical problem. • Replace with a lens providing less shading. |