Sony PCG-NVR23 - Manual (Page 136)

I want to change the display resolution for AV Out.
1. Make sure your computer was started with the AV Out jack plugged in.
2. Click Start on the taskbar, and then Control Panel.
3. Click Appearance and Themes, and then click the Display icon. The Display Properties dialog box appears.
4. Click the Settings tab.
5. Move the Screen resolution slider to change your video resolution.
Page 136