An open community 
of Macintosh users,
for Macintosh users.

FineTunedMac Dashboard widget now available! Download Here

Topic Options
#3321 - 09/08/09 01:26 PM White iBook backlight failure?
PChaterosx Offline
Banned

Registered: 08/04/09
the guy who is "helping" me with my Tibook said that the white iBook he just got on ebay, well the screen backlight failed in it. Is that possible, and is it fixible, because I have a feeling he was going to loan it to me untill my 'Book is back up.
_________________________
Titanium Powerbook G4 18.63 GB HD Mac OS 9.2- Mac OS X 10.2.8

Top
#3324 - 09/08/09 01:42 PM Re: White iBook backlight failure? [Re: PChaterosx]
joemikeb Online
Moderator

Registered: 08/04/09
Loc: Fort Worth, Texas
Virtual1 is the expert on that, but yes it is, or at least may be, fixable but you probably would not want to do the job yourself. It involves disassembling the lid, if not the whole iBook, and replacing the light, so with labor it could get pricey.

I know you are anxious to get back up and running, but this may be one of those times when you need to look a gift horse in the mouth.
_________________________
joemikeb • moderator

Top
#3325 - 09/08/09 01:54 PM Re: White iBook backlight failure? [Re: joemikeb]
PChaterosx Offline
Banned

Registered: 08/04/09
He just hinted that I might be able to borrow that iBook for a while... I didn't even know for sure. And I'm confused, It was a 600 mHz G3 and my Tibook was a 550 mHz G4!? The iBook had Tiger on it, too! mad
_________________________
Titanium Powerbook G4 18.63 GB HD Mac OS 9.2- Mac OS X 10.2.8

Top
#3331 - 09/08/09 02:28 PM Re: White iBook backlight failure? [Re: PChaterosx]
donikatz Offline


Registered: 08/04/09
Loc: Gotham
MHz/GHz (clock speed) isn't the only factor for processing power; A 550 MHz G4 is much faster than a 600 MHz G3.

Anyhow, I agree with JBM on this one.

EDIT: If the iBook has video-out, you can probably still hook it up to an external monitor or TV in a pinch, though...


Edited by donikatz (09/08/09 02:35 PM)
_________________________
Keeper of the Magic Nickel

Top
#3332 - 09/08/09 02:33 PM Re: White iBook backlight failure? [Re: donikatz]
PChaterosx Offline
Banned

Registered: 08/04/09
Originally Posted By: donikatz
MHz/GHz (clock speed) isn't the only factor for processing power; A 550 MHz G4 is much faster than a 600 MHz G3.

Anyhow, I agree with JBM on this one.
I don't get it.
_________________________
Titanium Powerbook G4 18.63 GB HD Mac OS 9.2- Mac OS X 10.2.8

Top
#3333 - 09/08/09 02:38 PM Re: White iBook backlight failure? [Re: PChaterosx]
donikatz Offline


Registered: 08/04/09
Loc: Gotham
If I read you correctly, you sounded confused that an iBook would have a faster processor than your Tibook. I'm just point out that raw clock speed isn't the only indicator of processing power. A chip at a lower clock speed can actually be much faster than one at a higher clock speed, if the rest of its technology is superior. A G4 will always be much more powerful than a G3, regardless of what the raw MHz speed rating is. In other words, yes your Tibook was much more powerful.

EDIT: Good example is my 6-yr-old PC at home has a 3.2 GHz chip in it. But a modern chip with half the GHz blows it away because it is manufactured for much more efficiency, programmed to support more advanced instruction sets, and has overall superior technology.


Edited by donikatz (09/08/09 02:42 PM)
_________________________
Keeper of the Magic Nickel

Top
#3334 - 09/08/09 02:41 PM Re: White iBook backlight failure? [Re: donikatz]
PChaterosx Offline
Banned

Registered: 08/04/09
OH! I get it now. Thanks, Doni. and don't you mean IS much more powerful? :sad:


Edited by PChaterosx (09/08/09 02:41 PM)
_________________________
Titanium Powerbook G4 18.63 GB HD Mac OS 9.2- Mac OS X 10.2.8

Top
#3335 - 09/08/09 02:44 PM Re: White iBook backlight failure? [Re: PChaterosx]
donikatz Offline


Registered: 08/04/09
Loc: Gotham
Sorry, yes, let's not put down the old girl yet: IS much more powerful!

In case you missed my earlier edit, check back about the video out comment. Could be a temp solution for you if repairing the iBook isn't worth it (I'd imagine it's not, but V1 can comment).
_________________________
Keeper of the Magic Nickel

Top
#3336 - 09/08/09 02:47 PM Re: White iBook backlight failure? [Re: donikatz]
PChaterosx Offline
Banned

Registered: 08/04/09
It's not my iBook, but I'll see. and about my Tibook, I always say: "Don't count a Mac down and out unless It's crushed into a million pieces!" *edit* I hope no one gets any
ideas from that!


Edited by PChaterosx (09/08/09 02:59 PM)
_________________________
Titanium Powerbook G4 18.63 GB HD Mac OS 9.2- Mac OS X 10.2.8

Top
#3338 - 09/08/09 03:08 PM Re: White iBook backlight failure? [Re: PChaterosx]
Virtual1 Offline


Registered: 08/04/09
Loc: Iowa
fixable depends on the problem. there are four basic things to kill a backlight

blown microfuse on logic board (usually due to a failed/shorted cable)

bad sleep/backlight cable (very common)

bad inverter

bad backlight in lcd panel

the second is very common. usually the backlight starts cutting out at certain angles of the lid being opened and gets worse over time. hard to verify if it's failed completely. very cheap part but high labor. inverter failure is next most common, cheap part but somewhat high labor.

_________________________
I work for the Department of Redundancy Department

Top

Moderator:  alternaut, dianne, MacManiac