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Powerbook g4 screen flickers then goes black

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Old November 1st, 2009, 09:25 AM
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Angry Powerbook g4 screen flickers then goes black
I have .1.25 ghz 15.2 inch lcd.
When I start the unit the screen starts fickering almost life a loose wire and then goes black...I then have to power the unit down. I do not know if it could be the onbard video or the screen causing this problem...Please help
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Old November 10th, 2009, 12:27 PM
mara48ar mara48ar is offline
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PowerBook G4 15" LCD display goes black
I have the same model and a few weeks ago started to have EXACTLY the same problem. Video only works on external monitor.
Any advice on how to solve the problem will be appreciated.
Dan
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Old November 10th, 2009, 02:15 PM
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If you look closely, do you see any images at all, or does the screen appear to be entirely off?

If the former, then you probably have a bad backlight inverter, otherwise, a bad LCD, graphics driver.
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Old January 24th, 2010, 04:38 PM
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EDIT: Sorry, didn't realise I was bumping the topic.
Dngrsone - it's impossible to be a bad graphics driver. It's more likely the LCD cable and inverter board on it's way out. About £15 for replacement parts for a DIY fix. If I get the money I'll buy spares/repairs I really want an Aluminium Powerbook anyway, price an Aluminium Powerbook's LCD Inverter board.
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Last edited by Soulman : January 24th, 2010 at 04:40 PM. Reason: Sorry, didn't realise I was bumping
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Old January 24th, 2010, 07:29 PM
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bad drivers arent impossible. they may be done by apple but it wouldnt be the first time drivers have been messed up by an update. I used to see loads of aluminium imacs that would glitch only on 10.5.4, had to roll back to 3 just to get the graphics fixed.

Anyway was going to say the inverter or lcd panel.
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Old January 25th, 2010, 02:26 AM
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It seems to be a common problem with Aluminium Powerbooks. I haven't seen it happen to an iBook or the Titanium Powerbook. I definitley think it's the LCD inverter board. Sets you back around £15.
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Old January 25th, 2010, 02:32 AM
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Quote:
Originally Posted by Soulman
It seems to be a common problem with Aluminium Powerbooks. I haven't seen it happen to an iBook or the Titanium Powerbook. I definitley think it's the LCD inverter board. Sets you back around £15.


cant say ive seen many powerbooks with lcd problems... except for smashed screens :/

ive seen just as many macbook/mbp's with the same problem. may just have one of a dodgy batch, it happens
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