Complete signal generator set This portable signal generator includes a USB cable and is designed to work with a range of display devices, including HDTVs, LCD monitors, and CRT projectors. It is a practical tool for diagnosing and troubleshooting display issues. Four resolution modes Switch between four common resolutions: 640x480, 800x600, 1024x768, and 1280x1024. Each mode can be powered by a 9V battery or an external AC adapter, providing flexibility in use. Userfriendly operation Connect the generator to your display using the 15pin connector and select the desired signal with ease. The default color block diagram appears at startup, enabling immediate testing and verification. Compact and lightweight design Dimensions: 26 mm x 52 mm x 90 mm. This compact size makes it easy to transport and store, ideal for technicians and home users who need quick diagnostics. Use scenarios Field service: Verify signal output and compatibility when installing or diagnosing HDTVs, LCD monitors, or CRT projectors on site. Setup and testing: Quickly check different displays or configurations to ensure compatibility across devices in a multidisplay environment. Home diagnostics: Troubleshoot color, resolution, or alignment issues on common consumer displays with a portable, battery or ACpowered tool.