Fixing Red Tint & Horizontal Lines on Xbox 360

A red tint with horizontal lines usually signals a signal integrity issue. Troubleshoot in this order:

1. Cable & Port

• Swap the HDMI cable (try a certified 1.4/2.0 cable).
• Try a different HDMI port on the TV.
• If using Component (YPbPr): ensure Red/Blue/Green are fully seated; swap cables.

2. Xbox 360 Video Settings

• Settings → System → Console Settings → Display → HDTV Settings
• Set correct resolution (720p/1080i/1080p) for your TV.
• Try Reference Levels: Standard (not Expanded).
• Color Space: RGB Limited (16–235) for most TVs.

3. TV Picture Settings

• Picture Mode: Movie / Cinema / ISF (not Vivid/Dynamic).
• Color Temperature: Warm / 6500K.
• Disable: Dynamic Contrast, Black Tone, Flesh Tone, Noise Reduction.
• HDMI Black Level: Low (if available).

4. Console Health

• Ventilation: clear space around vents; clean dust.
• Overheating causes GPU artifacting (lines, color shift).
• Early 360s (RRoD-era) may have failing GPU solder — artifacting worsens with heat.

5. Isolation Test

• Test the Xbox on another TV/monitor.
• Test another source (Blu-ray, PC) on the same TV HDMI port.

Diagnosis: If artifacting follows the console → GPU/HANA scaler failure (common on early 360s). If it follows the cable/port → cable or TV port. If the TV shows it on all inputs → TV panel/T-con board.