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Apple Computing Products:
macOS - Notebook Hardware
PoweeBook G4 vertical lines
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<blockquote data-quote="techiesteve" data-source="post: 1541292" data-attributes="member: 98520"><p>There is another quick test you can perform. Note the position and thickness of a vertical line. Lower the display resolution. If the line position moves and the line is thicker the line is on the video, therefore a gpu/logic board fault. It the line stays in the same position and at the same thickness when the resolution is lowered, the LCD will be defective.</p><p></p><p>If you attempt a repair look for a good used complete display clamshell. Replacing the LCD panel isn't the easiest task.</p></blockquote><p></p>
[QUOTE="techiesteve, post: 1541292, member: 98520"] There is another quick test you can perform. Note the position and thickness of a vertical line. Lower the display resolution. If the line position moves and the line is thicker the line is on the video, therefore a gpu/logic board fault. It the line stays in the same position and at the same thickness when the resolution is lowered, the LCD will be defective. If you attempt a repair look for a good used complete display clamshell. Replacing the LCD panel isn't the easiest task. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
PoweeBook G4 vertical lines
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