
Wrong colors or green / purple tint
The TV's built-in picture test splits the problem: if the test pattern is wrong, it is the TV (panel or board); if it looks fine, the cause is the source, cable or settings.
Before you start
- Power devices off before unplugging HDMI.
Diagnostic steps
Unlock all 5 steps with expected values
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Get lifetime accessOnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.