Yep,
The flashlight works just fine. You'll only see a faint image, but you will see an image if the screen itself is OK and just the backlights are fried.
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)