User Manual Ver.1.0 (English)
Page 629
The picture won't display in full screen. Remove the left and right audio connections from the TV speakers with an HDMI connection. If the buzzing stops, this indicates that the Set-Top box has a grounding issue. Replace the Component video cables with a Component cable connection. Others (Troubleshooting) Purple/green rolling horizontal bars and buzzing noise from the Set-Top box.
The picture won't display in full screen. Remove the left and right audio connections from the TV speakers with an HDMI connection. If the buzzing stops, this indicates that the Set-Top box has a grounding issue. Replace the Component video cables with a Component cable connection. Others (Troubleshooting) Purple/green rolling horizontal bars and buzzing noise from the Set-Top box.