Sent my PB in for horizontal line issue repair.......but.........

Just got back from the apple store and showed a genius my display and to my surprise he said he could see the issue at the upper half of the of the screen. I tried to show him the crankycat image but he said there was no need.
I then told hime that the part needed to be used for replacement according to other sufferers is the 646-0324 DSPL, 15.2, WXGA++,SAMSUNG,Q16C part but he said apple don't use that part number here (i live in london). i then ask if the display will be replaced anyway....he says yes.
When i get the repair sheet, i dont see anything mentioning display replacement, all i see is a "Flat Rate Repair Charge, PowerBook G4 15"-£170" and Labor Charge, PowerBook G4 15" - £100".
These don't sound really promising. I then request that they test the replacement display with the crankycat image and he goes."everything will be tested properly before despatch dont worry"
From what i gather the guy just wanted to rush and get things outta the way so he could go home.
I really don't think this will get fixed, but lets hope apple proves me wrong this once.

Update- line issue has been fixed

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Hello there.
Regarding the horizontal lines / waves issue, has anyone else noticed that the intensity of the problem varies with the position on screen? The problem is especially visible in the upper left corner of my screen, yet is almost non-existent in the lower right corner. From the upper-left to the lower-right corner, the problem degrades. This is true for both the "lines" issue and the "waves" appearing.
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Hi Sebastian,
When using sRGB (not IEC61966-2.1), I do see what you observe, however it is not THAT apparent.
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L655D-S5055 LCD horizontal line issue - possible motherboard or GPU failing??

Hello,
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MP
Attachments:
L655D_LCD2.jpg ‏9 KB
L655D_LCD1.jpg ‏8 KB

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Here is my experience with the new PowerBook display/horizontal lines issue. Please post any constructive advice you have that I can try - either to eliminate the problem or to pinpoint the cause more accurately.
I used to own a 15" Powerbook from about 12 months ago, a 1.33GHz model. The display on this was fine. Much better, in terms of brightness and clarity, than my other HP & Dell Windows laptops. When the PowerBook was stolen, one of the main reasons for immediately buying a new replacement PowerBook was the superior display quality.
At the start of November the replacement PowerBook arrived - a 15" hi-res 1.67GHz model. The faint grey horizontal lines covering the whole display were immediately visible. The display is substandard compared to both the previous PowerBook model and my Dell laptop.
Apple Care telephone helpline suggested an NVRAM reset and a PMU reset. Neither of these made any difference.
The PowerBook was then sent back for replacement and a week or so later the new replacement arrived. This also had exactly the same problems.
Apple Care helpline this time said that they could not find any problems with the PowerBook and I should first try the PowerBook connected to an external monitor and secondly take it to an Apple Dealer to show the problem.
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Many thanks!
It seems obvious, but please don't contravene the Terms of Use for this forum. If you want to complain to Apple, please do it elsewhere - locked posts will get us nowhere

n2o2,
I don't know what let you think that you will eventually receive an AluBook without stripe : Apple Care let you think that ???????.
I have been reading the stripes topics each day since I ordered my new powerbook, late october. I did not see one single post proving that a "free line" 15" powerbook does exist.
The real evidence would come from someone describing the difference between a "non affected" new powerbook sitting besides an affected one, coming from the same PB generation and with exactely the same LCD profile and screen / Colorsync settings.
I did not see a single story like that among the hundred(s) of posts related to horizontal lines.
I have read one post stating that the screen is "crystal clear" and "sharp". The one I received today could be described like that, but it displays those lines, except from the 8 or 10 upper rows of pixels on the menu bar.
The pb15_problems.png file is a very interesting one to me, as it demonstrates that the lines could clearly be attenuated using a single filter without compromising the sharpness/Brightness of the image.
If I compare side by side my 3months old previous generation powerbook and the new one, I must say that (except for the stripes) there is not much difference in daylight in terms of brightness but a perceptible better brightness in the complete darkness.
Well, if someone could prove that some of the new powerbook do not display this "feature", this would certainly push me to return mine. But, seeing how it is difficult to get this organized, I may not want an exchange but a refund, or an upgrade for a 17".
Please tell us quick if you win this battle.
Luc
AluBook 1.5 Ghz, G5 DP 1.8Ghz , G4 400 Mac OS X (10.4.3) airport express, iPod 3 & video

My good story with the 15" horizontal lines

I too received a 15" DL PowerBook with horizontal lines. I didn't record its serial number, but it did begin with W85 (one of the implicated serial batches). I took it back to the Apple Store after owning it for 4 days, spending most of that time researching what's really going on with all this. After using the pic that someone posted here in the forums (thank you!) to prove to the Genius Bar guys that there's a problem, they finally understood - even though Apple is currently "investigating the issue". They ultimately swapped out the machine for a new one.
My new machine has a serial beginning with W85, but it doesn't have the horizontal line issue. I'm incredibly pleased, and I hope this brings some positive vibes to an otherwise bleak story of yet another Apple 1st gen hardware issue.
17 iMac G5 1.8 Ghz, 15" DL PowerBook G4 1.67 GHz. Mac OS X (10.4)

Wow! This is great news. I really had lost hope here, there were too many reports of people just getting bad displays back time after time.
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I'd like to be able to take it to the store, open one up and test before I swap.
Although... I did alert Applecare of the problem a few weeks ago and told them to record my complaint and to contact me if they learn of a fix. I hope this will help. Thing is that it is getting to close to christmas now, and I'll be travelling around with the laptop.... hmmm.
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I decided to try changing the number of colors my diplay uses from millions to thousands. After doing this, I notice a cross-hatch or regular little squares pattern instead of horizontal lines. It is epecially obvious on light grays such as the gray behind "Apple Discussions" at the top of this web page.
When I use the digital color meter app with millions of colors, the gray I'm talking about is one uniform 88.6% in RGB, but when I change to thousands, a regular pattern of 90.6% and 87.1% RGB pops out. And, when I move the window around the desktop, the pattern of dark and light grays changes, but always from one obviously regular pattern to another.
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Now, about two thirds of the time, when I try to start up the screen stays black and it does not make any startup noises but the power light comes on steady. One time this was accompanied by a beeping tone that beeped in sets of three. The other one third of the time it starts up fine.
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If you have the NVIDIA GeForce 8600M GT video chip, you might be developing this problem:
http://support.apple.com/kb/TS2377
The beeps and kernel panic do seem to point to a RAM problem. If you replaced the original Apple RAM with 3rd party RAM, try the Apple RAM if you still have it and see if this cures the problem. Otherwise, try reseating it as described earlier.
Here is an article that may be of help:
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Sent my PB in for horizontal line issue repair.......but.........

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