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A DV5 arrives with complaint-
Video shows on External but not internal video on LCD/LED display.
Inspecting the unit near the video section,
the problem is immediately spotted as being a blown transistor. This transistor is one of the switching type that allows the video signal to be displayed/sent to the display. Without this part there will never be any video shown, except on an external monitor.
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Solution: replace blown transistor
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