LCD display is dim at top (see pic) pbg4

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PowerBook G4 Aluminum 15" 1-1.5 GHz 수리

모델 A1046 또는 A1095 / 1280x854 스크린 해상도

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Clint Wagner @clintwagner

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게시일: 2010년 7월 9일

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LCD display is dim at top (see pic) pbg4

Hi,

My 15" 1.0 ghz powerbook lcd display is showing some darkness or dimming at only the top 1/3 of the screen. The screen is still viewable and the performance of the machine is not impacted, but I'm wondering if you have any suggestions? Inverter, Cable, Backlight, or altogether LCD screen ?

I've linked some actual images taken from my phone so you can see the level of dimness that I'm referring to. Apologies of the lack of quality in the pics.

Thanks!

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Look closely and see if it's effecting 1/2 of the screen please.

mayer 의 2010년 7월 9일

it seems to be affecting approx 1/2 of the screen. See add'l images added to original.

Clint Wagner 의 2010년 7월 13일

However, once booted up fully into OS, it's not quite impacting half of the screen. You'll see what I mean by differences in #4 & #5

Clint Wagner 의 2010년 7월 13일

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Look closely and see if it's effecting 1/2 of the screen please. — mayer
it seems to be affecting approx 1/2 of the screen. See add'l images added to original. — Clint Wagner
However, once booted up fully into OS, it's not quite impacting half of the screen. You'll see what I mean by differences in #4 & #5 — Clint Wagner

remacberlin @remacberlin 평판: 13.2k 42 21 11 · Answer 1 · 2010-07-13T16:57:49-07:00

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remacberlin @remacberlin

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Looks like a failing screen backlight. I think you'll have to replace the LCD-panel. These things have two backlight tube in them and it looks like the upper one has given up the ghost. No way i know to replace just the tubes.

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Yup, I agree with remac, its not an inverter or data cable issue cause then you would get no picture at all. You can probably replace these tubes, just do some research on Google. If not, just replace the display.

Majesty 의 2010년 7월 13일

search tags I left - "half screen problem"

mayer 의 2010년 7월 13일

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PowerBook G4 Aluminum 15" 1-1.5 GHz 수리

LCD display is dim at top (see pic) pbg4

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